A bloactlve hexapeptide was cleaved by trypsln from a larger proteln. The peptlde was sequenced by treatment with varlOus reagents and enzymes. The results are as follows: a) Treatment wlth cyanOgen bromlde gave a tetrapeptlde of compositlon asp, trp, cys and met. b) Treatment with chymotrypsln gave a tripeptlde of compositlon asp, trp and cys, a dipeptlde wlth the same C-term and an amlno acld. c) Treatment with streptococcal protease gave a dipeptlde and a tetrapeptlde. The composltion of the peptlde Is lys, trp, asp, cys and met 1. What Is the sequence of the hexapeptlde? 2. What is the pl of thls peptlde?
A bloactlve hexapeptide was cleaved by trypsln from a larger proteln. The peptlde was sequenced by treatment with varlOus reagents and enzymes. The results are as follows: a) Treatment wlth cyanOgen bromlde gave a tetrapeptlde of compositlon asp, trp, cys and met. b) Treatment with chymotrypsln gave a tripeptlde of compositlon asp, trp and cys, a dipeptlde wlth the same C-term and an amlno acld. c) Treatment with streptococcal protease gave a dipeptlde and a tetrapeptlde. The composltion of the peptlde Is lys, trp, asp, cys and met 1. What Is the sequence of the hexapeptlde? 2. What is the pl of thls peptlde?
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 4.3P
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Transcribed Image Text:A bloactlve hexapeptide was cleaved by trypsln from a larger proteln. The peptlde was
sequenced by treatment with varlous reagents and enzymes. The results are as follows:
a) Treatment wlth cyanOgen bromlde gave a tetrapeptlde of compositlon asp, trp, cys
and met.
b) Treatment with chymotrypsln gave a tripeptlde of compositlon asp, trp and cys, a
dipeptlde wlth the same C-term and an amlno acld.
c) Treatment with streptococcal protease gave a dipeptlde and a tetrapeptlde.
The composltion of the peptlde Is lys, trp, asp, cys and met
1. What Is the sequence of the hexapeptlde?
2. What is the pl of thls peptlde?
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