sample a peptide of known sequence was treated with trypsin; another sample of the same peptide was treated with chymotrypsin. The sequences (N-terminal to C-terminal) of the smaller peptides produced by trypsin digestion were as follows: Ala Ser Glu-Met-AspLys Cys-His Ile-His-Arg Thr-Trp-Ala-Ile-Phe- Asn-Arg Trp–Cys–Cys– Gln The sequences of the smaller peptides produced by chymotrypsin digestion were as follows: Asn-Arg-Ala-Ser Glu-Met–Asp–Lys-Trp Cys-His-Ile-His-Arg-Thr–Trp Ala-Ile-Phe Cys–Cys–Gln

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A sample of a peptide of unknown sequence was treated with trypsin; another sample of the same peptide was treated
with chymotrypsin.
The sequences (N-terminal to C-terminal) of the smaller peptides produced by trypsin digestion were as follows:
Ala
Ser Glu-Met-AspLys
Cys-His Ile His-Arg
Thr-Trp Ala Ile-Phe-Asn-Arg
Trp Cys–Cys–Gln
The sequences of the smaller peptides produced by chymotrypsin digestion were as follows:
Glu-Met-Asp Lys-Trp
Asn-ArgAla
Ser
Cys-His-Ile-His-Arg-Thr-Trp
Ala
Ile-Phe
Cys-Cys-Gin
The original peptide sequence was:
Transcribed Image Text:A sample of a peptide of unknown sequence was treated with trypsin; another sample of the same peptide was treated with chymotrypsin. The sequences (N-terminal to C-terminal) of the smaller peptides produced by trypsin digestion were as follows: Ala Ser Glu-Met-AspLys Cys-His Ile His-Arg Thr-Trp Ala Ile-Phe-Asn-Arg Trp Cys–Cys–Gln The sequences of the smaller peptides produced by chymotrypsin digestion were as follows: Glu-Met-Asp Lys-Trp Asn-ArgAla Ser Cys-His-Ile-His-Arg-Thr-Trp Ala Ile-Phe Cys-Cys-Gin The original peptide sequence was:
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