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Details on Person The A- and P-sites of the ribosome positions the aa-tRNA and...

Class:IdSummation:72759
_displayNameThe A- and P-sites of the ribosome positions the aa-tRNA and...
_timestamp2005-03-17 19:00:37
literatureReference[LiteratureReference:159606] The path to perdition is paved with protons
[LiteratureReference:159598] Mechanism and regulation of eukaryotic protein synthesis
modified[InstanceEdit:159583] Gopinathrao, G, 2005-03-11 20:46:56
[InstanceEdit:159656] Gopinathrao, G, 2005-03-13 01:37:39
[InstanceEdit:159711] Gopinathrao, G, 2005-03-17 12:36:53
[InstanceEdit:159714] Gopinathrao, G, 2005-03-17 13:24:01
[InstanceEdit:159882] Gopinathrao, G, 2005-03-17 19:00:33
textThe A- and P-sites of the ribosome positions the aa-tRNA and peptidyl-tRNA such that a nucleophilic attack can occur between the amine group of the A-site aa-tRNA and the carbonyl group of the growing peptide chain on the P-site tRNA, resulting in the formation of a peptide bond. The carboxyl end of the peptide chain is uncoupled from the tRNA molecule in the P-site and forms a new peptide bond with the amino acid that is in the A-site.
This process is illustrated below with: a peptidyl-tRNA with a growing peptide,a deacylated tRNA with an -OH and a ribosome with A,P and E sites to accommodate these three forms of tRNA.
(summation)[Reaction:156912] Peptide transfer from P-site tRNA to the A-site tRNA [Homo sapiens]
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