Rna Translation
Rna Translation - Related Videos
12:26
Optical Tweezers to Study RNA-Protein Interactions in Translation Regulation
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Cited by 5 •
2022
This protocol presents a complete experimental workflow for studying RNA-protein interactions using optical tweezers. Several possible experimental setups are outlined including the combination of optical tweezers with confocal microscopy.
01:44
Termination of Translation
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2020
The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is the site where the peptide bond is formed - and a large, internal, water-filled tube through which the nascent polypeptide moves. This latter structure is called the Peptide Exit Tunnel, and it begins at the PTC and spans the body of the large ribosomal subunit. During translation, as the nascent polypeptide chain is synthesized, it passes through...
01:53
RNA Stability
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2019
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
01:23
RNA Interference
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2019
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated. This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
02:33
Initiation of Translation
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2020
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs. First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
FAQs
Complementary pairing gives translation its sequence-matching step. As the ribosome reads each mRNA codon, a tRNA with the corresponding anticodon delivers the associated amino acid. Repeating this matching process in codon order links the nucleotide sequence to the amino-acid sequence, helping determine which polypeptide chain is produced.
Initiation, elongation, and termination mark different functional phases. Initiation begins the organized reading process, elongation extends the amino-acid chain as successive codons are read, and termination ends production of the growing polypeptide. Considering these phases separately helps researchers analyze how the process proceeds during cellular studies.
Because ribosomes read codons in order, changing their order changes the sequence of amino acids delivered by tRNAs. The resulting polypeptide may therefore differ, and its later folding can affect whether it becomes a functional protein. This provides a conceptual basis for examining how mRNA sequence relates to cell structure and function.
A conceptual workflow starts by examining mRNA codons, then follows ribosome reading, matches each codon with complementary tRNA anticodons, records delivered amino acids through elongation, and identifies termination of the growing chain. Researchers can then consider how the resulting polypeptide folds into a functional protein.
Researchers can compare an mRNA sequence with the amino-acid sequence expected from its codons and tRNA matching. If a mutation changes the nucleotide sequence, translation provides a way to examine whether the predicted polypeptide sequence also changes. This connects genetic variation with possible differences in protein structure and function.
RNA translation is relevant to studies of gene expression, cellular regulation, inherited disorders, cancer biology, and antibiotics. It also supports biotechnology and therapeutic protein production. Across these areas, examining how nucleotide information becomes a polypeptide helps researchers connect molecular events with cellular behavior, disease-related effects, or engineered protein outcomes.