BIOL 300 Lecture Notes - Lecture 3: Tata Box, Ubiquitin, Transfer Rna
Document Summary
The genetic code start aug stop uaa uag uga codon: three consecutive nucleotides. 64 different codons 3- stop signals 61- code for amino acids tryptophan= one codon important regions of ribosomes. 5"-3" ribosome stays and mrna moves trna complementary base-pairing anti-codon always 5"-3" translation moves 1codon at a time termination of translation. Release factors bind to a stop codon uaa uag uga requires water at p site h2o addition. Regulation of protein levels: ubiquitination if protein not folded properly, add a tag and ubiquitin completely digest and degraded it can be good and bad, can attack normal protein as well. In what other ways are protein levels regulated? speed of replication, affect mrna, affect promotor region, ch. 8 (gene expression. how do we regulate genes?) If all cells contain the same genetic information, how do we account for differential protein expression? differentiate adult frog or carrot. differentiation.
