Proteolytic enzymes Flashcards

1
Q

break the peptide bonds that maintain the primary protein structure

A

proteolytic enzymes

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2
Q

is an enzyme that hydrolyzes dietary proteins in the small intestine

A

Chymotrypsin

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3
Q

chymotrypsin acts specifically at peptide bonds on the __________ of the peptide bond

A

carbonyl side

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4
Q

The C-terminal amino acids of the peptides released by bond cleavage are

A

methionine, tyrosine, tryptophan, and phenylalanine

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5
Q

The specificity of chymotrypsin depends upon the presence of a

A

hydrophobic pocket,

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6
Q

a cluster of hydrophobic amino acids brought together by the three-dimensional folding of the protein chain.

A

hydrophobic pocket,

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7
Q

The flat aromatic side chains of certain amino acids (tyrosine, tryptophan, phenylalanine) slide into this pocket, providing the binding specificity required for

A

catalysis at the catalytic site

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8
Q

chymotrypsin cleaves the bond between

A

phenylalanine and glycine, which is the peptide bond on the carbonyl side of amino acids having an aromatic side chain.

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9
Q

trypsin, chymotrypsin, and elastase all hydrolyze peptide bonds

A

The pancreatic serine proteases

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10
Q

As the name suggests, they are produced in the ____and subsequently transported to the _____-

A

pancreas

small intestine

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11
Q

These enzymes are the result of

A

divergen evolution

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12
Q

cleaves peptide bonds on the carbonyl side of aromatic amino acids and large, hydrophobic amino acids such as methionine.

A

Chymotrypsin

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13
Q

cleaves peptide bonds on the carbonyl side of basic amino acids.

A

Trypsin

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14
Q

cleaves peptide bonds on the carbonyl side of glycine and alanine.

A

Elastase

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