The crate, to be present in large amounts in higher eukaryotes, including lower eukaryotes, including Dictyostelium discoideum and reptiles, mammals, and amphibians, have been discovered so far. Their function is stored among species indicating that it is essential to the function of eukaryotic cells is very as a composition and structure of the protein. The vRNA is the length of a species-specific, which varies between 86 and 141 bases. Further, a number of terms different from the biological organism vRNAs. Each 89 bases in length, 94 other: for example, 141 bases long frog mouse express vRNA and rats represent 2 vRNAs. hvg3 and hvg1, hvg2: people, representing the related vRNAs three. You are educated guess of the vRNA relatively long rodents and covered with more than one (R1) small vRNAs in other species. It is the difference of the type of vRNA but, vRNAs polymerase III promoters all elements are highly conserved. Each vRNAs is expected to be harvested in stem-loop structure similar.

Incidentally, the functional role of the vRNA is not important, it is considered to be a structural role. This conclusion, deterioration of secondary structure that does not affect the form of a vault that vRNA that is based on the observation, different types vRNAs are stored in well is expected. The function of vRNA Since opening in 1986, and vault, remains speculative. The several groups (most is located in the cytoplasm) suggesting a role of depot intracellular transport based on (R1, R3) the intracellular localization barrel, and its structure. The co-localization with cytoskeletal vault, suggesting that it may be transported by the cytoskeleton or cytoskeleton involved in maintenance or partially frames. In torpedo electric line, it is transported in nerve endings between the cell body to support the role of the cytoskeleton in desk transport has been shown to box. It is not known vRNAs arches and may or may not be involved in intracellular transport actually.

Multi-drug resistance (LRP) lung resistance-related protein (MDR)-associated protein is an (MRP). The MDR, is the main cause of failure of cancer treatment, it is associated with overexpression of MRP was found. This gene cDNA LRP encoding the cDNA was found to be the human major vault protein. Note that it is overexpressed in human tumor cell lines having many MDR phenotype was found to MVP / vault. It is possible to act by the vault to transport the drug from the (R1) its target.

with respect to functionality of the vRNA, vRNAs should be noted that it is connected to a human cancer cell line storage complex some it. People vRNAs three, must Vault of complex ratio does not reflect the expression level. Three vRNAs have different affinities for the (TEP1) telomerase-associated protein 1. The TEP1, be identical with any of the smaller bolt protein was found. The TEP1, components of the telomerase complex is evolutionarily conserved.

By generating a knockout model, an attempt to understand the role of the role in human disease frame and probably have been made. In the cellular slime mold, unlike mammals, there are three major protein safe. The destruction of two of these genes, suggesting a role in survival (R1), to prevent the proliferation and / or cellular proliferation. However, (including the MVP as a human being) mouse, the interruption of MVP, can lead to loss of the depot, there was no phenotype was observed. (Also lacks the vRNA of) TEP1 KO mouse phenotype conspicuous does not exist. Cancer cell lines showed overexpression of MVP, but compared to the wild-type, MVP KO mice did not show increased sensitivity to the drug. Interestingly, the increase in tumors induced in carcinogen VPARP deficient mice have been reported, vRNAs related to a particular disease in humans remains. If vRNAs is linked to a number of conditions subtly, with relevance and known frame together vRNA, the role of the mobile phone potential of the above, I would not be surprised it.

I have found in 2004 by a group of two different laboratory studies of Arabidopsis flowering plant originally presence of TA-siRNA. Thesis of both, was published in October within days of each other. Research lab group proteins and other Argonaute Genki (ZIP), is trying to identify the (Sirna) time specific small interfering RNA. Despite the development of various places, protein inhibition of specific gene silencing 3 (SGS3), research group, found the project and related to the plant enzyme RNA-dependent RNA polymerase 6 (RDR6). It is important for the production of small RNA group called the TA-siRNA of (sRNAs) and RDR6 SGS3, both groups. Because in spite of sharing the similarity of micro RNA (miRNA) dove, siRNA was a new discovery Ta-siRNA is sRNAs distinction significant difference other. miRNA are different, it, siRNA of Ta is that derived from (dsRNA) longer double-stranded RNA, the product is RDR6 dependence was found. The TA-siRNA, siRNA is different transcripts are not identical, because they direct cleavage. Accordingly, TA-siRNA are functionally similar to the miRNA, but was prepared in the same manner as the siRNA.

Generated by antisense transcription by Argonaut guide of the miRNA-mediated cleavage followed by conversion of double-stranded RNA by RDR6 gene silencing to suppress 3 (SGS3) and RNA-dependent RNA polymerase TA-siRNA. In order to obtain the phase sequence of the siRNA of 21-NT, dsRNA produced is processed by a (DCL4) enzyme 4 dicer-like addition. starting from the cleavage site of the miRNA. There are four families of TA-siRNA. Their name from the location of TAS gene family because they have been transferred. The binding site for the mRNA cleavage of TAS3 on release, you need to require the binding sites of two family and TAS1, TAS2 TAS4.

I do not have many similarities to the gene of the draw method of the siRNA is intrinsic TA-siRNA by means straight jamming that the gene is subject to repression and cutting. Or is the same as the cis-acting, they are produced, mute the expression of genes that have many similarities with the gene from there, endogenous siRNA of other running to suppress automatically, this is different have. It miRNA that exhibits hetero jamming had been previously thought. As siRNA other, the TA-siRNA, it is being incorporated RNA-induced silencing complex that inhibits the translation target complex with the target mRNA for cleavage in the middle of locations further (RISCs).

Each member of the Argonaute protein family, is a component of a siren total RNA, an effector complex comprising a catalytic RISCs mRNA cleavage. In Arabidopsis, it plays the role of the time of acting TA-siRNA when subjected to regulation by the TA-siRNA, TAS3 seems AGO7/ZIPPY in particular. It is associated with the target of the cutting thereof by the TAS3 TA-siRNA AGO7/ZIPPY. It does not seem to suggest that different families AGO7/ZIPPY has minor variations of the mechanism in Arabidopsis thaliana, to play the role of TAS1 TAS2 TA-siRNA and mechanism. In addition to participating AGO7, TA-siRNA is able to guide cleavage of the target mRNA, to be loaded into AGO1 complexes in Arabidopsis.

In addition to be present in Arabidopsis, evidence also of the TA-siRNA, it has been found in strains patens, maize, rice Satibaine. Trans-acting short interfering RNA auxin response factor (tasiR-ARF) is an example not only that it does not Arabidopsis, is present in the previous embodiment, all have been proved, the TA-siRNA. The TasiR-ARF, is responsible for regulating the signaling molecule auxin. This is accomplished by directing mRNA encoding auxin response factors of several to decompose (ARF) gene.

first, its role in post-transcriptional gene silencing in plants (PTGS) was discovered by a group of David Baulcombe at the Sainsbury Laboratory in Norwich Hayate, it was reported in Science in 1999 siRNA. The synthetic siRNA, reported Thomas Tuschl et naturally, can induce an RNAi in mammalian cells immediately. This discovery has led to increased interest in the use of RNAi for drug development and biomedical research. Short ‘end is hydroxide and 3’ end phosphorylated 5 of the overhang of two nucleotides (usually 21-BP) double-stranded RNA (dsRNA) Dicer enzyme, siRNA from a small acute RNA month and siRNA long chain dsRNA siRNA is that it is possible in principle to have a well-defined structure, knock synthetic siRNA that any gene has a sequence complementary, is introduced by transfection: catalyzing the formation of. , SiRNA is an important tool for drug target validation in post-genomic era and gene function.

In rapidly dividing cells in particular, gene knockdown by transfection of unsatisfactory often exogenous siRNA, the effect is because is temporary only. This can be overcome by creating an expression vector Sirna. siRNA sequence is modified in order to introduce a short loop of chain between the two. Receiving the copy short hairpin RNA that can be processed into Sirna function of Dicer in the usual way of the shRNA. Small nuclear RNA (() snRNA is; For H1, U6 genes involved in splicing is a component of RNase RNase P of human) cassette transfer common use of RNA polymerase III promoter to induce transcription. It is theorized that it is processed by Dicer siRNA transcripts as a result. Recently, it was found that dsRNA is also, it is possible to activate gene expression mechanism is called RNAa or “RNA-induced gene activation” small. This can cause activation of the potent transcription have been shown to genes related dsRNA targeting the gene promoter. RNAa is, been demonstrated in human cells using called “small activating RNA” and (saRNAs), a synthetic dsRNA. It is unclear RNAa may or may not still remain in the other organisms present.

RNAi is therefore intersects the number of other routes, with respect to non-specific effects caused by the try siRNA, it is not surprising. Mammalian cells when it detects a double-stranded RNA, such as siRNA, he can as immune response and viral by-product, an error occurs. For regulating gene expression through imperfect complementary base pairs with the target mRNA interaction mainly Furthermore, micro-RNA to be structurally related, can lead to non-targeted introduction of siRNA is undesirable. Introduction of siRNA Many can for activation of the innate immune response, leading to a non-specific events too. Retinoic acid-inducible gene I also (RIG-I), may be included [Browse] is little evidence so far, but it shows that it is due to the activation of dsRNA PKR of sensor probably have. Induction of cytokines by (TLR7) receptor 7 Toll-like has also been described. Has become a micro-RNA siRNA promising one way to reduce the non-specific effect, [edit]. By leveraging should be able to achieve gene knockdown similar relatively low concentrations of siRNA the intrinsic pathway occurs, micro RNA is present in nature. This may be necessary to reduce the non-specific effect.

New guidance, is the subject of another use of siRNA as a gene knockdown tool. (From the point of view of siRNA acts like a miRNA) Sirna that lead to problems of interpretation of the toxicity and potential data, genes with incomplete complementarity, is down-regulated by carelessness here. However, this established design algorithms siRNA with an appropriate control experiments can be seen partially in some are prepared to generate a siRNA that target substantially freely. For example, genomic analysis of the whole expression can be checked by the microarray technology, using the algorithm for further processing. On agreement with siRNA 3’UTR region near the target gene, or long stretch of seven base position 2 on the road – 2006 paper, indicate the 6 from the laboratory of Dr. Khvorova.

Given the ability to knock down any gene essentially, RNAi via siRNA generates a great deal of interest in the biology of both basic and applied. There is an increase in RNAi large screen which is intended to identify the important genes in biological various routes. It also processes the disease, to be dependent on the activity of multiple genes, it is possible that blocking the activity of the gene by siRNA in some cases to obtain a therapeutic effect is expected. However, live animals in particular, the application of RNAi poses many challenges by siRNA for human. In the experiment, in a manner not yet understood, while others which shows the efficiency of different cell types show no (efficiency transfection example) Knockdown such cells few, siRNA is, siRNA Reacts well but shows knockdown stable.

Of siRNA, the second half of 2005 that are tolerated better (see Figure for age-related macular degeneration, known as AMD) phase treatment RNAi results in two studies my first It is reported, and has a suitable pharmacokinetic properties. The Phase 1 clinical trial, RNAi will be used in delivery in lipid nanoparticles 41 patients with advanced cancer metastasis to the liver. RNAi is targeted important two genes encoding proteins of the growth kinesin spindle protein (KSP) cancer cells, vascular endothelial growth factor (VEGF),. The results can demonstrate the clinical benefit such as cancer, was stable after regression of metastases in some patients or six months. Mechanical analysis of biopsy samples of the patients showed the presence of the RNAi construct certificate sample that it has reached the target molecules are given. The proof of concept studies, it may be effective for post-exposure prophylaxis in humans, non-human primate lethal dose of Zaire Ebola virus, the survival rate of 100% of the strains most deadly has been shown that siRNA Ebola oriented .

The piRNA, and have been identified in vertebrates, and operating mode biosynthesis and is slightly different between different species of invertebrates, but the number of features will be retained. piRNA you do not have a clear secondary structure motif, between 26-31 nucleotides, the length of the Pirna is, by definition, bias of the 5 ‘uridine, piRNA in both invertebrate and vertebrate is common. The piRNA nematode with a modification and a 3 ‘monophosphate 5’ acting on the oxygen so ‘or 3′ or 2 block in (Caenorhabditis elegans), that it is present in rat Drosophila melanogaster, zebra, and the mouse was confirmed was. The idea is this revision 3 “2’-O-methyl, the reason for this change is not clear, but as having hundreds of thousands of different types of pills found. Mammals that are supposed to increase the stability pill . To date, 000 unique sequence Pirna more than 50 were found in more than 13,000 in the Drosophila melanogaster and mouse.

The piRNA, it is found in the entire genome cluster, you can piRNA or 10 000 as including only to these groups, you may 1-100 kilobytes different sizes. Already, the discovery and annotation of the genome of Pirunakurasuta based on how the increasingly sophisticated in recent years. it will be saved piRNA Hano clustering across species well, but there is no sequence. On the other hand, the vertebrate piRNA and D. melanogaster, Caenorhabditis elegans, which is located areas lacking a protein encoding gene, is in the piRNA C. has been identified in protein-coding genes. It seems to be required for men only, but in mammals, it is located in both ovarian piRNA mother, and testis. In invertebrates, it has been found in the germline of both women and men piRNA mother. At the cellular level, it is possible pathway operates in two areas, suggesting that they may have multiple effects, pills, was found in the cytoplasm and nucleus piRNA.

Although not fully understood yet, but piRNA of biosynthesis, possible mechanisms have been proposed. That piRNA mothers, those indicating the direction of displacement rather, only be obtained from one strand of DNA, which may mean that they are the product of precursor long single-stranded molecule . It piRNA is the only path to be used in the manufacture of Pakiten processing time of the first have been proposed, as tends to result to channel 5 ‘uridine piRNA, in this mechanism, pills precursor is transferred that. In addition, it is the mechanism “ping-pong” The main piRNA that is proposed to recognize the complementary goal of them, causing the recruitment of protein PIWI. This results in the cleavage of the transcript in point 10 nucleotides from the 5 ‘end of the main production of Pirna Pirna average. Secondary piRNA these there is the position of the adenine tenth target sequence. Pirna to participate in the ping-pong cycle, direct the attack against the copy of the transposon, ping-pong cycle operates only at the level of transcription. Or both may be operated in various modes either of these mechanisms. For example, C. nematode, have the piRNA, but it does not seem to use the ping-pong mechanism at all. Adenine is included in the ten quite a few are identified piRNA in D. melanogaster and zebrafish, it is interpreted as a possible evidence of biosynthesis mechanisms between species conservative. Ping-pong signature, have been identified in primitive many animals, such as cnidarians and sponges that could indicate the presence of a ping-pong cycle already in the branch of early metazoan.

Important discoveries of many of biology, has emerged from (ribonucleic acid) study of RNA, including creative work in the field of structural biology biochemistry, genetics, microbiology, molecular biology, and molecular evolution . By 2010, scientists of 30, was awarded the experimental work, including the study of RNA, the Nobel Prize. Findings specific high biological significance, are described in this article. For additional information, please see the article on the history of the history of genetics and molecular biology. For more information, please refer to the article and nucleic acid RNA.

When we investigated the early first 1900s, differential chemical and biological between DNA and RNA is a clear, they are isolated, the name of the material from which the initial RNA “is “known as, DNA is” yeast nucleic acid nucleic acid with a pancreas “. “The ribose nucleic” two nucleic acids that contains the name of the common RNA, containing sugars using different diagnostic tests, chemistry, carbohydrate chemistry, indicating that it is. While the DNA is stable, the biochemical studies of other early, that (degeneration), was broken at high pH easily RNA in alkaline has been shown. For example, analysis of nucleoside composition that thymine nucleobases trace components, the number of dimethylguanine and a small amount of shoe dough lysine are included, and the RNA, it contains a nucleotide base, such as DNA uracil in place of this RNA I was shown.

Claims the result RNA that appeared in the late 1950s, leading to the synthesis of protein and thus, the formation of DNA, the concept of RNA is associated with a description of the jack of “central dogma of molecular biology” that. Complex genetic analysis of mutations in the lac operon early 1960s, E. coli, and instead of T4 RII bacteriophage, there is the genetic code and means for determining the nature of the RNA. MRNA of the cell population, short-term nature of the RNA of bacteria with nature very complex biochemical separation of mRNA challenging. Using the reticulocyte in vertebrates to produce a large amount of mRNA that is enriched (major protein bands hemoglobin 2) β globin RNA and encoding α very, this problem is overcome in 1960.

In the 1950s, the results of the experiment, the radioactive amino acid to label the rat liver “microsomes” very quickly after application it is associated with (redefined as ribosomes after) were found, before it will be is a cellular protein that was included widely been shown. The ribozyme, use an electron microscope, the ribonucleoprotein component thereof, biophysical methods capable of generating a (corresponding to hundreds of thousands of gravitational times) the acceleration is very high, ultracentrifugation sedimentation mainly To visualize that it has been identified by analysis. (Moves along the mRNA molecule number of ribosomes) polysomes It has been identified in the early 1960s, their research, generate processively proteins, ribosomal mRNA to the 5 ‘to 3’, as is the case they they do has led to the understanding of how to keep reading in the direction of.

Biochemical experiment painting, shows the radioactive amino acid is being built in a small RNA molecules remain soluble in the large RNA containing the conditions in which the particles to settle rapidly. These molecules will change the transfer RNA (of tRNA) (deer) and later referred to as water-soluble. That there is a set matching enzymes involved in the binding of (III) mRNA, the correct amino acids, subsequent studies, the plurality of specific amino acids, the mRNA species, each associated with (II) (I), each cell anticodon sequence of the tRNA to have has been shown to form a specific interaction with codons decoding mRNA.

The (RT-PCR), which is one of many embodiments of the polymerase chain reaction (PCR) Reverse transcription-polymerase chain reaction. This technique is used in the field of molecular biology for detecting the expression levels of RNA widely. RT-PCR has been confused real-time polymerase chain reaction and scholars and students (QPCR) often. However, they are different techniques clearly. By creating a (cDNA) the additional DNA from RNA transcription, RT-PCR, are used for the qualitative detection of gene expression but, QPCR was quantified amplification of DNA using the fluorescent probe . Quantitative PCR, quantitative real-time PCR, [3], QPCR also serves as a real-time quantitative PCR. Conventional PCR and RT-PCR, by amplifying the application of the two techniques in this way, to generate multiple copies of DNA isolation of specific, but is fundamentally different. Conventional PCR is used merely for the exponential amplification of DNA sequences. RT-PCR was used to using reverse transcriptase, cloning a gene that is expressed by reverse transcription of RNA of interest in the complement of the DNA. The cDNA then was newly synthesized was amplified using conventional PCR.

In addition to the qualitative study of gene expression by including an equivalent QPCR, RT-PCR may be used to quantify the RNA absolutely and relatively. Often, combined technique described by (real-time quantitative RT-PCR sometimes) Quantitative RT-PCR, real time RT-PCR is an abbreviated RRT-PCR QRT-PCR, or RT-QPCR,. Most powerful compared to other methods for quantitative RNA by Northern blotting, detecting the level of the QRT-PCR RNA, can be considered quantitative analysis with high sensitivity. Infection and expression of one or more genes and this is used to analyze the expression patterns for the identification of disease often.

Quantification of mRNA using RT-PCR may be achieved either two-step reaction or one step. Difference between the two approaches is the number of tubes used in the course of the procedure. The approach of one stage, all of the cDNA synthesis reaction by PCR amplification occurs in the tube. On the other hand, require a reverse transcriptase reaction, the two-stage reaction was performed in a separate tube PCR amplification. The one-step method, I thought to minimize the deviation from the experiment of the enzyme reaction of all in the environment. However, it is susceptible to degradation in the approach of a single step, and the use of this approach, starting template RNA does not recommend that you repeated analysis of the same sample. Furthermore, the one-step approach, it is less accurate than a two-step approach was reported. The main advantage of the two-step approach, analysis with high reproducibility shows a correlation coefficient in the range of 0988-0974. Removal of primer dimers, so can be achieved by simple modification of the melting temperature, for example, be used DNA binding dye SYBR Green or the like, it is the preferred method of analysis. A disadvantage of two-stage approach is sensitive to contamination by more frequent handling samples.

Serum prostate-specific antigen (PSA) assay has a high false positive rate. Marker PSA is to provide diagnostic information is limited. As well as tumor, multi-marker test for detection of potentially fatal, provides a clinical need that is not met. Using the nanoString nCounter system, 20 – as a means for detecting prostate cancer, gene expression of the gene multiple test was developed based on the digital count gene RNA transcripts urine. In this test, centrifuged to pellet void urine, cells were amplified preselected hybridization probe sets the RNA was purified. Measured by DNA microarray, amplification test cell line RNA is not a gene rich level and the number of matches and bias considerable, but will be displayed. For data analysis, each number, to compare β2 microglobulin, and gene family. I have analyzed urine samples of five preoperative patients, and 2 non-cancer. Pathology information is restored. The low June 06 and Gleason scores and prostate cancer markers noncancerous low, are known, the signal for the majority of genes, were positive when. In contrast, one instance Gleason 4 Figure 5 is a strong signal for all associated with cancer markers including CD24. The non-cancer, there is shown a signal of cancer marker of 6 all, there is a possibility that undiagnosed, harbor cancer this person. Analyze the natural wastes, this multiplex assay can be used to stratify patients and early detection potential screening of cancer. The diagnostic information, I got from RNA signature associated with the cells of prostate cancer.

The first step of transcription, is an opening that identifies the start of the mRNA position and appropriate it. Due to the nature of the “out under” genetic code, the location of the start codon only, has the potential to determine the reading frame, false detection can lead to a complete distortion of messages as a result of a change in reading frame. Exact start is essential for an accurate translation. The genetic code, the start of a particular signal is not included. Rather, the dual function that is associated with the presence of two types of mRNA codons August methionine. One, met for use in normal-tRNAMets initiator tRNA and especially at first. Met-tRNAMet second, are used amino acid methionine at the position of the inside, in the process of expansion of the set, including reasonable-elongator only protein. (Initiation factor EIF of eukaryotic) initiation factor of several proteins that provide support to the ribosome during the initiation process.
When starting the process, it may be divided into separate steps several.
1. First, ribosome dissociation is called the 60’s and 40’s department in the configuration sub-unit of the two. Subunit can prevent spontaneous reassociation of connecting the initiation factor EIF-3 in the ribosomal small subunit.
2. Initiation factor 2 is an EIF-GTP-binding protein that recognizes a specific initiator tRNA to form a ternary complex and (A).
3. Ternary complex B is associated with the 40S ribosomal subunit.
4. 5 ‘end of the RNA cap structure is recognized by initiation factor EIF-4F. This factor, interacts with the cap structure in particular: Has division (see cap structure splicing). Combination of the user who started the cause of activation is 40S, subunit initiator tRNA, including the 5 ‘end of the mRNA. This type of start, is known as a cap-dependent start, which is the most common type of start. May be caused by a cap start mechanism independent of another start.
5. Move the 5 ‘untranslated end of the mRNA of the related subunit mRNA in until it reaches the codon of the first of August to become the start codon of the translation process. It requires energy (ATP), the process called scanning is started additional factors.
6. Subunit codons 60 begins to bind to the 40S subunit when it reaches the activation of 40S subunits. This reaction, to release the factors that start from the ribosome as this requires factor EIF-5 start of hydrolysis add EIF-2 bound GTP. As a result of the start process, the initiator will be placed in the collapse of the ribosomal P-80S ribosome site.The of 60S subunit and 40S. Subunit can prevent reassociation spontaneous intiation factor EIF-3.

The basic process of protein production, the addition of amino acids one by one to the end of the protein. This operation is performed by the ribosome. Selection of the type of amino acid to be added is determined by the mRNA molecule. Each amino acid, I was added to match the base sequence of the mRNA of the three. Type of amino acid of one particular possible is accepted only in each triplet such. Contiguous amino acids are added to the adaptive circuit to the nucleotide triplet continuous mRNA. As a result, I will determine the sequence of amino acids of the chain of amino acids nucleotide sequence of the mRNA template of the chain has been formed. It is found in the C-terminus of the peptide, and thus, the addition of amino acids, the transfer function – is said to be a carboxyl – amino.

carry the genetic information encoded as a ribonucleotide sequence of chromosome of the ribosome during mRNA. By translational machinery in the sequence of nucleotide triplets called codons ribonucleotides are “read”. Each triplet of these codes for a particular amino acid. Molecule of the ribosome translates the code to this specific sequence of amino acids. The ribosome is a multi-subunit structure containing the protein and ribosomal RNA. This is the “factory” is incorporated amino acid, the protein. (93 nucleotides from 74) small non-coding RNA chain, amino acids are transported ribosome mRNA. Of tRNA is, have the site of a site called anticodon and amino acid attachment. The RNA, to be complementary to RNA triplet, encoding the amino acid of the cargo in the anticodon triplet.

Aminoacyl-tRNA synthetase (enzyme) catalyzes the coupling between amino acids, that the anticodon sequence tRNA and requires a specific. The product of this reaction is an aminoacyl tRNA molecule. This aminoacyl-tRNA, codon of the mRNA moves to the ribosome that is matched to the base of the pair added to the tRNA anticodon specific. The ribosome has three sites for tRNA to bind. They are (E for short) exit point aminoacyl site (abbreviation), and peptidyl site (abbreviated P). ‘For mRNA for moving to end, 3 seats, EPA 5’ 3 of the mRNA is 3 ‘orientation from the ribosome. I will bind and tRNA codon additional site of mRNA is imminent. I will hold the polypeptide chain mRNA of P management is growing. TRNA in the E site does not have the amino acid.

Initially, when bound to the codon that corresponds to that of the mRNA, are on the site aminoacyl-tRNA. Thereafter, the amino acid sequence of the mRNA and form of the peptide bond between amino acids mRNA to one location is transmitted to the site of mRNA growth and loaded polypeptide chain on the P site. Transfer occurs, and amino acids to E site that was in the accused now site at polypeptide chain, the tRNA, the P, move the mRNA leave the E site to a site that you are in the site P without the tRNA is now , aminoacyl-tRNA other enters the site to repeat the process. After being added to the circuit a new amino acid, the energy provided by hydrolysis of GTP which is connected to EEF-2 and (prokaryotes) translocase EF-G, the termination codon ribosome at the 3 ‘end of (eukaryotic) I want to move down. Energy necessary for translation of proteins is important. For N protein-containing amino acids, the number of high-energy phosphate bond necessary for translation 4N-1. Translation rate is different, but it is significantly higher (up to 17-21 amino acid residues in the second) prokaryotic cells than (amino acid residues within 6-9 pieces second) eukaryotic cells.

This landscape mammalian genome has been described as a “focal point” of multiple transcription that are separated by a long stretch of the intergenic region. As played in intergenic regions and antisense RNA long, it is transcribed as a network entangled composite antisense transcript sense and largely overlap, which comprises a gene encoding a protein often. Give rise to a complex hierarchical structure of overlapping isoforms often, lesions transcription in the genomic sequence of these are shared by the number of anti-sense direction and sense of non-code entry and different encoding. For example, were identified as non-coding variants true cDNA encoding a protein of cDNA described later by 3012 8961 annotated coding sequence described above was truncated at FANTOM2. In spite of the conservation and richness of these arrangements intertwined, they suggest that you have a block evaluated in the complex simple and biological significance of these stylish. Its genomic organization and human annotation lncRNA, benchmark consortium GENCODE a wide range of tissue expression profiles and cell site of change. Their analysis, it indicates that shows a bias human lncRNAs, the two exon transcript.

RNA many small, such as snoRNAs or micro RNA shows a strong conservation in different species. In contrast, strong conservation ncRNA lack of generally longer, cited as evidence of non-functionality often from this. However, many, suggesting that may be subject to selective pressure different, as long as XIST and air are not well conserved, ncRNA’s explained, well ncRNA of such. In contrast to the mRNA’s need to hold the codon usage, to prevent the frame mutations ORF one long, selected regions having a short long antisense RNA, which is limited by the sequence specific interaction or structure It can be maintained for. Therefore, the choice to confirm the action on the basis of a small area of ​​non-coding transcripts long only. However, despite the long antisense RNA low protection generally, antisense RNA very long it should be noted that it comprises a storage element still highly it. For example, 19 percent of the functions that are highly conserved can be seen in 32% and another phastCons intron known in the region without annotation. In addition, indicators of purification, replacement, small insertion / deletion rate, a representative set of non-coding RNA long human, pretty still choose to maintain the integrity of the transcription level of splicing sequence and promoter, I show a decrease.

The poor preservation of the ncRNA, recently, may be the result of rapid adaptive selection. For example, antisense RNA can be demonstrated by the presence of ncRNA strains of a very specific, such as air and XIST, the more flexible the pressure in the evolution of protein-coding gene. In fact, many of the human genome is the subject of evolutionary change in recent chimpanzee genomes, conserved region thereof is transferred, is primarily found in the non-coding region. This has made rapid evolutionary change in humans, in particular, non-coding, which is expressed in Cajal-Retzius cells in human cortex, including HAR1F. There is a limit to the plastic structure more features, may lead to an array of these, observed functional verification RNA that many developing quickly, can expect a lot of innovation evolution of such a sequence. This was confirmed by the presence of thousands sequence of the mammalian genome showing the poor preservation of the sequence level, there is evidence for the secondary structure of RNA saved.

(For a complete list, please see the article of telomere of the table) is a ribonucleoprotein polymerase that maintains telomere ends by addition of telomeric repeat TTAGGG, this repetition changes the eukaryotic telomerase. The enzyme acts as a template for telomere repeat and reverse transcriptase activity, and a protein component by component RNA encoded by this gene from a (t). It telomerase expression plays a role in cell aging usually is suppressed in the somatic cells after birth for the shortening of telomere stages. Deregulation of telomerase expression in somatic cells may be involved in tumorigenesis. The study, there is a possibility that de novo synthesis of telomeric repeats occurs in double-strand breaks during, or telomerase in mice, to be involved in the repair of chromosome is shown. Homolog of TERC can be found in Gallid herpes. Mutations in this gene can also cause dyskeratosis congenita autosomal dominant and associate some cases of aplastic anemia.

In higher eukaryotes, micro RNA can regulate gene expression. I can reduce the miRNA expression levels of hundreds of genes. Complementary RNA of one or more molecules (for mRNA), mature miRNA molecules mechanisms acting through at least partially the 3 ‘UTR typically. The main function of miRNA is down-regulated gene expression. There may affect gene expression in non-coding RN RNase P. Nuclei of human RNase P is necessary for efficient transcription and normal transfer of various antisense RNA by RNA polymerase III. Gene of U6 snRNA and SRP RNA is included, tRNA of these, the 5S rRNA. RN RNase P to exercise its role in transcription by binding to the 5S rRNA gene and tRNA of active chromatin and Pol III. Note [26], multi-noncoding which acts as a negative regulator 7SK RNA, RNA polymerase II elongation factor P-TEFb, such activity, being affected by the stress-response pathway is shown.

Non-coding of bacteria, 6S RNA, RNA polymerase binds to holoenzim containing the sigma70 factor specificity in particular. This interaction inhibits the expression of the sigma70-dependent promoters stationary phase.  By non-coding other bacteria, clogging the binding of the ribosome by OxyS RNA, binding to Shine sequence and suppresses translation. OxyS RNA was induced in response to oxidative damage in E. coli. Non-coding RNA polymerase III transcription small inhibit transcription in response to heat shock in mouse cells, B2 RNA is RNA. B2 RNA to inhibit transcription by binding to Pol II core. Through this interaction, B2 RNA is assembled before the start complex block RNA synthesis and promoter. Recent studies have shown that it is possible to influence the gene expression acts only transcription of non-coding sequence. Transcription of RNA polymerase II antisense RNA is required for chromatin remodeling in fission yeast. Chromatin several types of anti-sense RNA is transcribed is converted to the open position gradually.

The incorporated 5 ‘untranslated region of a gene encoding a protein (the UTR), the number of non-coding RNA, which affect their expression in a variety of ways. For example, it is possible riboswitch to bind to small molecules directly target binding of the target, affect the activity of the gene. RNA leader sequence is found upstream of the first gene of the amino acid biosynthesis operons. RNA elements, which form one of the structures in two different region encoding the peptide sequence very short final product of amino acid operon is rich. terminator structure is formed when the ribosome and movement restricting amino acids on the reader transfer is not inhibited is present in excess. If there is a deficiency in charged tRNA to the ribosome translate antiterminator structure and regulation form amino acid leader peptide stalls. This allows the RNA polymerase to transfer the operon. Leader RNA histidine operon leader known, leucine operon leader threonine operon leader tryptophan operon leader.

Iron response element (IRE) is bound iron response protein (IRP). I have a UTR of mRNA of various products involved in iron metabolism in IRE. If the iron concentration is low, bind to mRNA IRE of ferritin leading to translational repression the IRP. As part of the process of protein synthesis, an internal ribosome entry site (IRES) has the structure of the RNA to allow translation initiation at the center of the mRNA sequence.

The RNase P of acterial, called the C5 protein, a component 2, RNA chain, which is known as protein or polypeptide chain and M1 RNA. In vivo, it is necessary for ribozyme both components to function properly, it can act as a catalyst in the M1 RNA in vitro. By increasing the affinity of the metal ion in the active site, the main role of C5 protein to improve the catalytic rate of M1 RNA and enzyme binding affinity of the substrate probably. shows a method according to the shape selective recognition of the target pre-mRNA, the crystal structure of RNase P and bacterial holoenzim mRNA was solved placed helical domain of large coaxial RNase P RNA of recently. The crystal structure shows the location of the active site to verify the earlier models and catalyst substrate recognition, protein component shows a method of increasing the RN RNase P function.

Ribonuclease P (RN RNase P) is a ubiquitous endoribonuclease, found archaea, eukaryotes and bacteria as mitochondria and chloroplasts. Features activities its best is the production of the 5 ‘end of mature tRNA by cutting the leader element 5’ of the precursor tRNA. Ribonucleic RNase Ps of Mobile is (RNP). That is, RNA shell RNase Ps bacterial holding ribozyme catalytic activity in the absence of protein subunits. The RN RNase P RNA of archaebacteria and eukaryotes isolated, it retains its catalytic function is shown, it is still essential for catalytic activity of holoenzim. To Yu protein content very high ones of bacteria of the RNA core, but it has the same phase three lines corresponding to the P1, P2, and spiral,, archaea holoenzyme and eukaryotic organisms and P10 P3, P4 / 11, I is common to RN RNase P RNA of all cells. However, there is considerable variation between the eukaryotic RNA sequence in particular.

In archaea, RN RNase P is made from ribonucleic 4-5 protein subunits that are associated with the RNA. The protein subunits are indicated by the results of in vitro dissolution tests as, mRNA is substantially RNA-mediated component is individually unsuitable for processing. [8] [9] Clearly, X-ray crystallography and determined by NMR new protein domains whereby structure of the protein subunits RN RNase P [10] archaea are essential for function fold . The RN RNase P RNA eukaryotic isolated, it is possible to retain its catalytic function is shown, it is still essential for catalytic activity of holoenzim. To Yu protein content very high ones of bacteria of the RNA core, but it has the same phase three lines corresponding to the P1, P2, and spiral,, archaea holoenzyme and eukaryotic organisms and P10 P3, P4 / 11, I is common to RN RNase P RNA of all cells. However, there is considerable variation between the eukaryotic RNA sequence in particular.

Genus Pyrobaculum, form to use the calculation method of improvement and comparative genomics of RNase P RNA of called “type T”, is minimized fundamentally, Clen archaea family system, including the species Vulcanisaeta and Caldivirga It is found in the complete genome of all of Thermoproteaceae within. Keep the catalytic domain of conventional but there is no specificity of a recognizable domain. Confirmed experimentally processing activities 5 ‘tRNA single RNA. In the form that you discovered that Caldivirga ribonuclease P RNA and Pyrobaculum to function as a trans-acting ribozyme still, naturally occurring minimum. The potential loss of specificity domains in RNA These suggest that substrate specificity is altered.  But lacks the experiment and research archaebacteriium Nanoarchaeum equitans ribonuclease P. computer recently, but insisted that it was not able to find evidence of its existence. Is this organism promoter mRNA, close to the gene mRNA, are thinking about starting from the first base of the mRNA to eliminate the requirement of RNase P RN transcription follow it

AT-RN RNase P is structurally similar to that of the 9-10 binding protein and bacteria (as opposed to RNase P protein of bacteria, such as, and C5) in eukaryotes such as yeast and human like this It consists of a chain RNA you have. Five of the protein subunits of these shows the correspondence of the same sex archaea. Protein subunit of RNase P RN These are shared RN RNase MRP, a ribonucleoprotein catalyst involved in the processing of ribosomal RNA in the nucleolus. The RN RNase P, it is a very recent ribozyme has been shown from eukaryotes. Therefore, processing of tRNA itself has a negligible role of RNase P protein subunit eucaryal many, but they RNase in settings other biologically, such as cell cycle and transcription of such genes It appears to be essential to the function of RNase MRP and P. The bacterial origin of mitochondria and chloroplasts, pigments and animals higher plants, do not appear to include RN RNase P RNA-based, but it, RNase P of human mitochondrial is a protein, RNA does not contain It has been shown. Further RNase P of chloroplasts spinach, can function without subunit RNA is shown.