Question

Amino acids. In each space provided below, write the single-letter abbreviations of all amino acids that...

Amino acids. In each space provided below, write the single-letter abbreviations of all amino acids that match the description.

_____________ contain(s) two chiral carbons

_____________ contain(s) a positively charged side chain at pH 4

_____________ contain(s) a positively charged side chain at pH 7

_____________ contain(s) a negatively charged side chain at pH 7

_____________ contain(s) a negatively charged side chain at pH 12

_____________ contain(s) an imidazole side chain

_____________ contain(s) the most hydrophobic side chain

_____________ contain(s) aromatic side chain(s), with resonant electrons, which can be detected by absorpton spectroscopy

_____________ side chain(s) can covalently link two polypeptide chains through disulfide bonds

_____________ least likely to be found in α-helical peptides

Homework Answers

Answer #1

_I , T          contain(s) two chiral carbons

____D,E_________ contain(s) a positively charged side chain at pH 4

___K,R,H__________ contain(s) a positively charged side chain at pH 7

____D,E_________ contain(s) a negatively charged side chain at pH 7

______G_______ contain(s) a negatively charged side chain at pH 12

____H_________ contain(s) an imidazole side chain

__I,L___________ contain(s) the most hydrophobic side chain

______F,Y,W_______ contain(s) aromatic side chain(s), with resonant electrons, which can be detected by absorpton spectroscopy

______C_______ side chain(s) can covalently link two polypeptide chains through disulfide bonds

______L_______ least likely to be found in α-helical peptides

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