Microbiology


Transcription in 3 steps


InitiationElongationTermination


Initiation


mRNA and ribosomes come together at start codon.


Elongation


NTPs are added in the 5' to 3' direction.


Termination


Self termination with a stem loopEnzyme dependent


Translation


InitiationElongationTermination


Initiation


mRNA and ribosomes come togetherStarts at the P site with the AUG start codonFirst amino acid is methionine


Elongation


Add amino acids and form a peptide bondRibosome moves down the mRNA to the next codon


Termination


Ribosome reaches the stop codon (UAA,UAG, and UGA)Causes them all to come apart