Ribosome Translation
Ribosome Translation - Related Videos
11:19
Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses
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Cited by 2 •
2011
A major impediment to biochemical analyses of ribosomes containing nascent peptidyl-tRNAs has been the presence of other ribosomes in the same samples, ribosomes not involved in the translation of the specific mRNA sequence being analyzed. We developed a simple methodology to purify, exclusively, the ribosomes containing the nascent peptidyl-tRNA of interest.
10:15
Isolation of Ribosome Bound Nascent Polypeptides in vitro to Identify Translational Pause Sites Along mRNA
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Cited by 2 •
2012
A technique to identify translational pause sites on mRNA is described. This procedure is based on isolation of nascent polypeptides accumulating on ribosomes during in vitro translation of a target mRNA, followed by the size analysis of the nascent chains using a denaturing gel electrophoresis.
10:26
TRAP-rc, Translating Ribosome Affinity Purification from Rare Cell Populations of Drosophila Embryos
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Cited by 19 •
2015
Translating Ribosome Affinity Purification (TRAP) is able to capture cell-type-specific translation of mRNA. Here we report the first TRAP protocol dedicated to isolation of mRNA in rare cell populations of Drosophila embryos.
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...
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...
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Initiation, elongation, and termination organize translation into a coordinated sequence. Together, these stages provide a framework for following how ribosomes process an mRNA message, extend an amino-acid chain, and complete a polypeptide. Viewing the stages in order helps researchers connect the beginning of gene expression with the eventual formation of a protein product.
Transfer RNA links two parts of the process: its anticodon pairs complementarily with an mRNA codon, and it delivers the corresponding amino acid. This pairing allows the nucleotide sequence to guide the order of amino acids in the polypeptide. Examining codon and anticodon matching therefore helps explain how genetic information becomes a specific protein chain.
Each component contributes a different requirement for protein production. Messenger RNA supplies the codon sequence, transfer RNAs bring amino acids, and ribosomal RNA with ribosomal proteins supports the coordinated activity of the ribosome. Their cooperation matters because translation requires both an information template and molecular components that interpret it and build the growing chain.
Studying this process connects gene expression with proteins that perform structural, catalytic, and regulatory roles. Because those proteins contribute to cellular growth and adaptation, translation research can help investigators relate the use of genetic information to broader cellular behavior. This makes the topic relevant to basic biology and to studies of how cells adapt.
Studying the mechanism supports research on antibiotics and genetic disorders because it focuses attention on a central step in gene expression. Researchers can place findings about protein production in a biological context that also includes cellular function. This perspective connects molecular events involving mRNA, tRNA, and ribosomes with broader investigations of health and disease.
Knowledge of this process supports biotechnology and protein production research by clarifying how an mRNA sequence is linked to an amino-acid chain. That relationship gives researchers a biological framework for studying protein production while preserving the roles of codons, anticodons, amino acids, and peptide bonds. It also connects production goals with the underlying mechanism of gene expression.