Biology 1001A Lecture Notes - Lecture 1: Amine, Ribosomal Rna, Stop Codon
8 Aug 2016
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Document Summary
Occurs in the cytoplasm of the cell, and is the most energy consuming process. Process of when mrna turns into proteins, through the ribosomes: ribosomes consist of two subunits (large and small), small is on the bottom. Ribosome is made up or rrna, has three parts ( ape" spelt epa") since it goes from right to left: a= acceptor, p= polypeptide, e=exist. Initiation trna called transfer rna (taxi which brings ingredients) has one arm with anti-codons. The anti-codons, are complementary to the mrna and tell the trna what amino-acid to bring. Mrna gets feed in left from the acceptor site", going with the 5" first. Igniting trna (aug) binds to the polypeptide site, awaiting the mrna, through the ribosomal units a" site. Amino acids are covalently bonded from peptide bonds (amino group and carboxyl), happens over and over again. As the mrna strand proceed, eventually reaches the end with the stopping codons (uaa/uag/uga), which do not make any proteins.
