3. You are studying a protein that has a molar extinction coefficient of 1358 M-1 cm-1. You measure a solution of this protein using a 1 cm cuvette and find that the absorbance is 0.47. What is the concentration of the protein? Which amino acids are likely found in this protein? If you thought the protein of interest was pure, but there are actually some contaminants remaining from the purification process, will you be overestimating or underestimating the concentration of your protein of interest?

Biochemistry
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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
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3. You are studying a protein that has a molar extinction coefficient of 1358 M-1 cm-1. You measure a
solution of this protein using a 1 cm cuvette and find that the absorbance is 0.47. What is the
concentration of the protein? Which amino acids are likely found in this protein? If you thought the protein
of interest was pure, but there are actually some contaminants remaining from the purification process,
will you be overestimating or underestimating the concentration of your protein of interest?
Transcribed Image Text:3. You are studying a protein that has a molar extinction coefficient of 1358 M-1 cm-1. You measure a solution of this protein using a 1 cm cuvette and find that the absorbance is 0.47. What is the concentration of the protein? Which amino acids are likely found in this protein? If you thought the protein of interest was pure, but there are actually some contaminants remaining from the purification process, will you be overestimating or underestimating the concentration of your protein of interest?
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