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PMG Exam 1 lwc 3
PMG Exam 1 Lec3
21
Science
Graduate
01/31/2009

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Cards

Term
50S is made up of
Definition
23s + 5s and has proteins L1-L31
Term
30S ribosome is made up of
Definition
16s and has proteins S1-S21
Term
30S does
Definition
binds mRNA then binds 50S, slects correct mRNA
Term
50S does
Definition
forms peptide bonds, moves along mRNA, translocates tRNAs
Term
A site
Definition
aminoacyl-tRNA site, tRNA with amino acid attached
Term
P site
Definition
peptidyl-tRNA site, tRNA with a peptide attached
Term
which is a peptidyltransferase enzyme
Definition
23S
Term
initiation codons
Definition
AUG,GUG,UUG,AUA,AUU
Term
AUG codes for
Definition
methionine
Term
1st amino acid
Definition
formyl-methionine, fMet-tRNA
Term
removes formyl group
Definition
peptide deformylase
Term
removes Met from 1st spot
Definition
map,methionine aminopeptidase
Term
first TIR
Definition
Shine Dalgarno or ribosome binding site
Term
IF3
Definition
keeps 50s and 30s from associating
Term
IF1
Definition
binds and blocks A site
Term
IF2
Definition
recruits 50s and then is released
Term
EF-Tu
Definition
binds tRNA and stabilizes, converts GTP-> GDP
Term
EF-G
Definition
transfers growing peptide chain in the Asite to the P site
Term
RF1 for which codons
Definition
UAA Aand UAG
Term
RF2 for which codons
Definition
UGA
Term
stop codons
Definition
UGA,UAA, UAG
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