Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of a protein A and one-subunit a a protein designated B a protein designated A two proteins designated A and B a protein A and one-subunit a a protein designated B a protein designated A two proteins designated A and B ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the common features are shared between serine and aspartate proteases? Both show specificity for certain amino acid sequences All of these Both use a base to activate the nucleophile Both require water to complete the catalytic cycle Both show specificity for certain amino acid sequences All of these Both use a base to activate the nucleophile Both require water to complete the catalytic cycle 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 neutralize the charge on the other's side chain function as a proton shuttle keep the specificity pocket open clamp the substrate into the active site neutralize the charge on the other's side chain function as a proton shuttle keep the specificity pocket open ANSWER DOWNLOAD EXAMIANS APP
Enzymes The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 58 kJ/mol 49 kJ/mol 40 kJ/mol 88 kJ/mol 58 kJ/mol 49 kJ/mol 40 kJ/mol 88 kJ/mol ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following (s) is/are serine proteases? Trypsin Elastase all of these Chymotrypsin Trypsin Elastase all of these Chymotrypsin ANSWER DOWNLOAD EXAMIANS APP
Enzymes What is the specificity of the Clostripain protease? 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 None of these It cleave after Lys residues ANSWER DOWNLOAD EXAMIANS APP
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