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These data suggest that telomere elongation occurs only in S phase. Additional experiments with greater time resolution support this hypothesis and narrow the timeframe to late S phase. Researchers tied telomere elongation in these experiments to telomerase activity by observing that in an S. cerevisiae strain with a dysfunctional ALT pathway ...
The elongation and membrane targeting stages of eukaryotic translation. The ribosome is green and yellow, the tRNAs are dark-blue, and the other proteins involved are light-blue. Elongation depends on eukaryotic elongation factors. At the end of the initiation step, the mRNA is positioned so that the next codon can be translated during the ...
The elongation phase starts once assembly of the elongation complex has been completed, and progresses until a termination sequence is encountered. [1] The post-initiation movement of RNA polymerase is the target of another class of important regulatory mechanisms.
The elongation factor EF-Tu has been shown to stabilize the bond by preventing weak acyl linkages from being hydrolyzed. [ 12 ] All together, the actual stability of the ester bond influences the susceptibility of the aa-tRNA to hydrolysis within the body at physiological pH and ion concentrations.
Elongation that occurs throughout the formation of the neural plate and closure of the neural tube is vital; the closing areas of the neural tube are seen to have very increased elongation activity in the midline compared to already closed areas when the plate was beginning to shape itself into a tube. [5] Bending and Convergence of the Neural ...
In normal mRNA translation, the ribosome binds to the transcript and begins amino acid chain elongation. It continues on until it reaches the location of the exon junction complex, which it then displaces. Next, translation is complete when the ribosome reaches a termination codon.
Simple diagram of transcription elongation. One strand of the DNA, the template strand (or noncoding strand), is used as a template for RNA synthesis. As transcription proceeds, RNA polymerase traverses the template strand and uses base pairing complementarity with the DNA template to create an RNA copy (which elongates during the traversal).
EF-G (elongation factor G, historically known as translocase) is a prokaryotic elongation factor involved in mRNA translation. As a GTPase , EF-G catalyzes the movement (translocation) of transfer RNA (tRNA) and messenger RNA (mRNA) through the ribosome .