1) Lysine is one of the 20 amino acids that found in protein. Draw the form (s) of lysine that would exist at pH 5.0. pK (a-carbonyl group) = 2.2 ; pK (a-amino group) = 9.2 ; pK (R group) = 10.8

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Chapter1: Biochemistry: An Evolving Science
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1) Lysine is one of the 20 amino acids that found in protein. Draw
the form (s) of lysine that would exist at pH 5.0. pK (a-carbonyl
group) = 2.2 ; pK (a-amino group) = 9.2 ; pK (R group) = 10.8
2) For the following amino acids, encircle those with a net charge
of -2 at high pH underline those with +2 at low pH
Aspartic acid, Alanine, Arginine, Glutamic acid, Valine,
Leucine, Lysine, Isoleucine
3) The following is the amino acid sequence of bradykinin, a peptide
released by certain organisms in response to wasp stings:
Arg – Pro – Pro - Gly - Phe - Ser – Pro – Phe – Arg
What amino acids or peptides are produced when bradykinin is
treated with each of the following reagents?
a) with Carboxypeptidase c) with Trypsin
b) with Chymotrypsin d) with DNFB
Transcribed Image Text:1) Lysine is one of the 20 amino acids that found in protein. Draw the form (s) of lysine that would exist at pH 5.0. pK (a-carbonyl group) = 2.2 ; pK (a-amino group) = 9.2 ; pK (R group) = 10.8 2) For the following amino acids, encircle those with a net charge of -2 at high pH underline those with +2 at low pH Aspartic acid, Alanine, Arginine, Glutamic acid, Valine, Leucine, Lysine, Isoleucine 3) The following is the amino acid sequence of bradykinin, a peptide released by certain organisms in response to wasp stings: Arg – Pro – Pro - Gly - Phe - Ser – Pro – Phe – Arg What amino acids or peptides are produced when bradykinin is treated with each of the following reagents? a) with Carboxypeptidase c) with Trypsin b) with Chymotrypsin d) with DNFB
1) Lysine is one of the 20 amino acids that found in protein. Draw
the form (s) of lysine that would exist at pH 5.0. pK (a-carbonyl
group) = 2.2 ; pK (a-amino group) = 9.2 ; pK (R group) = 10.8
2) For the following amino acids, encircle those with a net charge
of -2 at high pH underline those with +2 at low pH
Aspartic acid, Alanine, Arginine, Glutamic acid, Valine,
Leucine, Lysine, Isoleucine
3) The following is the amino acid sequence of bradykinin, a peptide
released by certain organisms in response to wasp stings:
Arg – Pro – Pro - Gly - Phe - Ser – Pro – Phe – Arg
What amino acids or peptides are produced when bradykinin is
treated with each of the following reagents?
a) with Carboxypeptidase c) with Trypsin
b) with Chymotrypsin d) with DNFB
Transcribed Image Text:1) Lysine is one of the 20 amino acids that found in protein. Draw the form (s) of lysine that would exist at pH 5.0. pK (a-carbonyl group) = 2.2 ; pK (a-amino group) = 9.2 ; pK (R group) = 10.8 2) For the following amino acids, encircle those with a net charge of -2 at high pH underline those with +2 at low pH Aspartic acid, Alanine, Arginine, Glutamic acid, Valine, Leucine, Lysine, Isoleucine 3) The following is the amino acid sequence of bradykinin, a peptide released by certain organisms in response to wasp stings: Arg – Pro – Pro - Gly - Phe - Ser – Pro – Phe – Arg What amino acids or peptides are produced when bradykinin is treated with each of the following reagents? a) with Carboxypeptidase c) with Trypsin b) with Chymotrypsin d) with DNFB
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