Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of two proteins designated A and B a protein designated A a protein designated B a protein A and one-subunit a two proteins designated A and B a protein designated A a protein designated B a protein A and one-subunit a ANSWER DOWNLOAD EXAMIANS APP
Enzymes The role of Asp 102 and His 57 during trypsin catalysis is to keep the specificity pocket open neutralize the charge on the other's side chain clamp the substrate into the active site function as a proton shuttle keep the specificity pocket open neutralize the charge on the other's side chain clamp the substrate into the active site function as a proton shuttle ANSWER DOWNLOAD EXAMIANS APP
Enzymes The cleavage specificity of trypsin and chymotrypsin depend in part on the absence of water in the active site presence of a low-barrier hydrogen bond in the active site or specificity pocket size, shape, and charge of the active site or specificity pocket proximity of Ser 195 to the active site or specificity pocket absence of water in the active site presence of a low-barrier hydrogen bond in the active site or specificity pocket size, shape, and charge of the active site or specificity pocket proximity of Ser 195 to the active site or specificity pocket ANSWER DOWNLOAD EXAMIANS APP
Enzymes The E.coli pyruvic acid dehydrogenase complex is reported to Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2 decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2 Catalyze the reduction of pyruvic acid to acetyl Co A and CO2 retard the reduction of pyruvic acid to acetyl Co A and CO2 Catalyze the oxidation of pyruvic acid to acetyl Co A and CO2 decatalyze the oxidation of pyruvic acid to acetyl Co A and CO2 Catalyze the reduction of pyruvic acid to acetyl Co A and CO2 retard the reduction of pyruvic acid to acetyl Co A and CO2 ANSWER DOWNLOAD EXAMIANS APP
Enzymes Common feature in all serine proteases is a hydrophilic specificity pocket cluster of reactive serine residues hydrophobic specificity pocket single reactive serine residue hydrophilic specificity pocket cluster of reactive serine residues hydrophobic specificity pocket single reactive serine residue ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following statements about enzymes or their function is true? Enzymes do not alter the overall change in free energy for a reaction All of these Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function Enzymes do not alter the overall change in free energy for a reaction All of these Enzymes speed up reactions by lowering activation energy Enzymes are proteins whose three-dimensional form is key to their function ANSWER DOWNLOAD EXAMIANS APP
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