1. The graph given represents a size-exclusion chromatogram after the refolding of the hemoglobin tetramer. This process is not 100% efficient, so we may have leftovers of dimers and monomers. In the graph given, can we label the peaks given as a tetramer, dimer, or monomer?
1. The graph given represents a size-exclusion chromatogram after the refolding of the hemoglobin tetramer. This process is not 100% efficient, so we may have leftovers of dimers and monomers. In the graph given, can we label the peaks given as a tetramer, dimer, or monomer?
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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Hemoglobin is considered to be a tetrameric complex with a 64 kDa (α β)2. When attempting to purify hemoglobin, we must first purify the α and β monomers (about 16 kDa each) to prepare the tetramer. This is formed from the dimer intermediate: 2 α + 2 β -> 2 αβ -> (α β)2.
1. The graph given represents a size-exclusion chromatogram after the refolding of the hemoglobin tetramer. This process is not 100% efficient, so we may have leftovers of dimers and monomers. In the graph given, can we label the peaks given as a tetramer, dimer, or monomer?
Transcribed Image Text:Elution Volume (mL)
Absorbance at 280 nm
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