You've discovered a protein that contains 3 polypeptides, and each subunit is identical in structure. The protein is most likely a ___ Select one: a. hetermotrimer b. homotrimer c. none of the above d. homodimer e. hetercofactor
You've discovered a protein that contains 3 polypeptides, and each subunit is identical in structure. The protein is most likely a ___ Select one: a. hetermotrimer b. homotrimer c. none of the above d. homodimer e. hetercofactor
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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Question
Congrats! You've discovered a protein that contains 3 polypeptides, and each subunit is identical in structure. The protein is most likely a ___
Select one:
a.
hetermotrimer
b.
homotrimer
c.
none of the above
d.
homodimer
e.
hetercofactor
Expert Solution
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Step 1
Proteins are the polymers of amino acids. The individual amino acids in a polypeptide are joined by the peptide linkages.
The proteins are composed of two or more polypeptide chains. They may be identical or unidentical.
These proteins are called oligomers.
The protein with a single polypeptide is called a monomer.
A protein with two polypeptides is called a dimer. Similarly, the protein with four polypeptides is called a tetramer.
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