BIO 2306 Lecture Notes - Lecture 20: World Federation Of Trade Unions, Transfer Rna, Adenine
28 Aug 2016
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Document Summary
The removal of the amino acid and reattachments: each peptide bond requires the hydrolysis of 2 molecules of gtp. One is assoc. with eftu: one atp gets hydrolyzed twice to activate amino acid. Atp and adp attach the amino avid to the trna. Adp and amp to form the peptide linkage: termination -nonsense codons. Three stop codons: uag-amber, uaa-ochre, uga-opal, there is no trna with an anti-codon complimentary to these codons. Nirenberg and matthaei"s defines mrna"s: argued that if it is a 2 base sequence what are the possibilities only 4 if only adenine and uracil. If it was a 3 base and it had adenine and uracil - 8 diff possible amino acid sequences. If the mrna had a protein with more than 4 it had to be 3 base. If you have a and u and varied the ratios then the probability - look up: names for the code.
