Chymotrypsin, trypsin, and elastase are digestive enzymes called serine proteases. The serine proteases differ in substrate specificity. Chymotrypsin cleaves peptide bonds after aromatic or bulky hydrophobic side chains, trypsin requires basic amino acid residues, and elastase cleaves bonds following small uncharged side chains. A chart of amino acids is available for your reference. Determine which specificity pocket is a part of each enzyme. oooooo Chymotrypsin alanine Which amino acids have side chains that fit into the specificity pocket of trypsin? phenylalanine Trypsin aspartate glycine lysine arginine Answer Bank Elastase

Biochemistry
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Chapter1: Biochemistry: An Evolving Science
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G.274.

 

Chymotrypsin, trypsin, and elastase are digestive enzymes called serine proteases. The serine proteases differ in substrate
specificity. Chymotrypsin cleaves peptide bonds after aromatic or bulky hydrophobic side chains, trypsin requires basic
amino acid residues, and elastase cleaves bonds following small uncharged side chains. A chart of amino acids is
available for your reference.
Determine which specificity pocket is a part of each enzyme.
Chymotrypsin
Trypsin
alanine
☐phenylalanine
aspartate
glycine
lysine
arginine
Answer Bank
Which amino acids have side chains that fit into the specificity pocket of trypsin?
Elastase
Transcribed Image Text:Chymotrypsin, trypsin, and elastase are digestive enzymes called serine proteases. The serine proteases differ in substrate specificity. Chymotrypsin cleaves peptide bonds after aromatic or bulky hydrophobic side chains, trypsin requires basic amino acid residues, and elastase cleaves bonds following small uncharged side chains. A chart of amino acids is available for your reference. Determine which specificity pocket is a part of each enzyme. Chymotrypsin Trypsin alanine ☐phenylalanine aspartate glycine lysine arginine Answer Bank Which amino acids have side chains that fit into the specificity pocket of trypsin? Elastase
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