Transcripts CASPA ISL B Front Rush D Synergy UNE ProctorU Albany MedP ee. a thre

Question

Transcripts CASPA ISL B Front Rush D Synergy UNE ProctorU Albany MedP ee. a threonine The three enzymes trypsin, elastase, and chymotrypsin Select one or more: a. have structural differences at their active sites to allow for different substrate binding b. catalyze reactions that proceed through a covalent intermediate c. likely evolved from a common ancestor d. catalyze the same general reaction: the cleavage of a peptide bond e. have major similarities in their amino acid sequences and three dimensional structure Which of the following DNA sequences is lifely to be cut by a restriction enzyme. Only the 5 to 3' sequ but you should assume that the opposite strand is present to form a duplex Select one or more:

Explanation / Answer

b) tetrahedral intermediate is formed which is covalent.

d) all these enzymes involve breaking of peptide bond.

e) they have greater structural similarities in sequence of amino acids and three dimensional structures.

c) The great similarities among these proteins indicate that all of these are evolved through gene duplication of ancestral serine protease followed by the divergent evolution of the resulting enzyme.

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