Experimental results describing a protein's amino acid composition are useful for estimating the molecular weight (MW) of the entire protein. A quantitative amino acid analysis reveals that bovine cytochrome c contains 6% alanine (?r 89.1) by weight. Calculate the approximate molecular weight of bovine cytochrome c if there are 6 alanine residues.
Experimental results describing a protein's amino acid composition are useful for estimating the molecular weight (MW) of the entire protein. A quantitative amino acid analysis reveals that bovine cytochrome c contains 6% alanine (?r 89.1) by weight. Calculate the approximate molecular weight of bovine cytochrome c if there are 6 alanine residues.
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Experimental results describing a protein's amino acid composition are useful for estimating the molecular weight (MW) of the entire protein. A quantitative amino acid analysis reveals that bovine cytochrome c contains 6% alanine (?r 89.1) by weight. Calculate the approximate molecular weight of bovine cytochrome c if there are 6 alanine residues. Please enter your answer with three significant figures.
approximate bovine cytochrome c MW:
Da
Bovine chymotrypsinogen has a molecular weight of 25.6 kDa. Amino acid analysis shows that this enzyme is 11% serine (?r 105). Calculate how many serine residues are present in a molecule of bovine chymotrypsinogen. Round your answer to the nearest whole number.
number of serine residues:
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