Enzymes The nucleophile in serine proteases is Serine water Asparagine both (a) and (b) Serine water Asparagine both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Enzymes The role of Asp 102 and His 57 during trypsin catalysis is to clamp the substrate into the active site keep the specificity pocket open neutralize the charge on the other's side chain function as a proton shuttle clamp the substrate into the active site keep the specificity pocket open neutralize the charge on the other's side chain function as a proton shuttle ANSWER DOWNLOAD EXAMIANS APP
Enzymes In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2? A ---(E1)---> B ---(E2)---> C ---(E3)---> A will still be produced, but not B, C, or D A, B, and C will still be produced, but not D A, B, C, and D will all still be produced A and B will still be produced, but not C or D A will still be produced, but not B, C, or D A, B, and C will still be produced, but not D A, B, C, and D will all still be produced A and B will still be produced, but not C or D ANSWER DOWNLOAD EXAMIANS APP
Enzymes What is the specificity of the Clostripain protease? None of these It cleave after Lys residues It cleave after His residues It cleave after Arg residues None of these It cleave after Lys residues It cleave after His residues It cleave after Arg residues ANSWER DOWNLOAD EXAMIANS APP
Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of a protein A and one-subunit a a protein designated B two proteins designated A and B a protein designated A a protein A and one-subunit a a protein designated B two proteins designated A and B a protein designated A ANSWER DOWNLOAD EXAMIANS APP
Enzymes The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 88 kJ/mol 49 kJ/mol 40 kJ/mol 58 kJ/mol 88 kJ/mol 49 kJ/mol 40 kJ/mol 58 kJ/mol ANSWER DOWNLOAD EXAMIANS APP
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