1.Ala-Phe-Lys-Val-Val-GluFrom the above polypeptide, what amino acid/s go/goes inside the cell after the followingtreatment:Chemotrypsin, thermolysin, then finally pepsin. What protein is left undigested? Write theprimary structure of the undigested protein?2.K-V-F-W-P-L-A-Ya.Chemotrypsin treatmentb.Trypsin treatmentc.Pepsin treatmentd.Thermolysin treatment3.Total acid hydrolysis of a pentapeptide complemented by total alkalinehydrolysis yields anequimolar mixture of 5 amino acids listed alphabetically, ala-cys,lys,phe,ser. N-terminalanalysis with phenylisothiocyanate (PITC) generate PTH-ser. Trypsin digestion produces atripeptide where N-terminal residue is cys and a dipeptide with ser as its N-terminal.Chemotrypsin digestion of the above tripeptide yields ala plus another dipeptide.A.What is the amino acid sequence of the tripeptideB.What is the amino acid sequence of the dipeptide derived from trypsin digestion?C.What is the primary structure of the original pentapeptide?

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.Ala-Phe-Lys-Val-Val-Glu rom the above polypeptide, what amino acid/s go/goes inside the cell after the following reatment: themotrypsin, thermolysin, then finally pepsin. What protein is left undigested? Write the rimary structure of the undigested protein? .K-V-F-W-P-L-A-Y Chemotrynsin treatment

.Ala-Phe-Lys-Val-Val-Glu rom the above polypeptide, what amino acid/s go/goes inside the cell after the following reatment: themotrypsin, thermolysin, then finally pepsin. What protein is left undigested? Write the rimary structure of the undigested protein? .K-V-F-W-P-L-A-Y Chemotrynsin treatment

Nutrition Now

8th Edition

ISBN:9781337415408

Author:Brown

Publisher:Brown

Chapter15: Proteins And Amino Acids

Section: Chapter Questions

Problem 12RQ

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

1.Ala-Phe-Lys-Val-Val-Glu
From the above polypeptide, what amino acid/s go/goes inside the cell after the following
treatment:
Chemotrypsin, thermolysin, then finally pepsin. What protein is left undigested? Write the
primary structure of the undigested protein?
2.K-V-F-W-P-L-A-Y
a.Chemotrypsin treatment
b.Trypsin treatment
c.Pepsin treatment
d.Thermolysin treatment
3.Total acid hydrolysis of a pentapeptide complemented by total alkalinehydrolysis yields an
equimolar mixture of 5 amino acids listed alphabetically, ala-cys,lys,phe,ser. N-terminal
analysis with phenylisothiocyanate (PITC) generate PTH-ser. Trypsin digestion produces a
tripeptide where N-terminal residue is cys and a dipeptide with ser as its N-
terminal.Chemotrypsin digestion of the above tripeptide yields ala plus another dipeptide.
A.What is the amino acid sequence of the tripeptide
B.What is the amino acid sequence of the dipeptide derived from trypsin digestion?
C.What is the primary structure of the original pentapeptide?

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