A protein gives, under conditions of buffer composition, pH, and tem- perature that are close to physiological conditions, a molecular weight by size exclusion measurements of 140,000 g/mol. When the same protein is studied by SDS gel electrophoresis in the absence or presence of the reducing agent B-mercaptoethanol (BME), the patterns seen, respectively, in lanes A and B are observed. Lane C contains standards of molecular weight indicated. From these data, describe the native protein, in terms of the kinds of subunits present, the stoichiometry of subunits, and the kinds of bonding (covalent, noncovalent) existing between subunits. A B - BME + BME STD Serum albumin, 67,000 Ovalbumin, 43,000 Carbonic anhydrase, 30,000 8 Trypsin inhibitor, 20,000 10 cm migrated 2.
A protein gives, under conditions of buffer composition, pH, and tem- perature that are close to physiological conditions, a molecular weight by size exclusion measurements of 140,000 g/mol. When the same protein is studied by SDS gel electrophoresis in the absence or presence of the reducing agent B-mercaptoethanol (BME), the patterns seen, respectively, in lanes A and B are observed. Lane C contains standards of molecular weight indicated. From these data, describe the native protein, in terms of the kinds of subunits present, the stoichiometry of subunits, and the kinds of bonding (covalent, noncovalent) existing between subunits. A B - BME + BME STD Serum albumin, 67,000 Ovalbumin, 43,000 Carbonic anhydrase, 30,000 8 Trypsin inhibitor, 20,000 10 cm migrated 2.
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
Related questions
Question

Transcribed Image Text:A protein gives, under conditions of buffer composition, pH, and tem-
perature that are close to physiological conditions, a molecular weight by
size exclusion measurements of 140,000 g/mol. When the same protein

Transcribed Image Text:is studied by SDS gel electrophoresis in the absence or presence of the
reducing agent B-mercaptoethanol (BME), the patterns seen, respectively,
in lanes A and B are observed. Lane C contains standards of molecular
weight indicated. From these data, describe the native protein, in terms of
the kinds of subunits present, the stoichiometry of subunits, and the kinds
of bonding (covalent, noncovalent) existing between subunits.
A
B
- BME
+ BME
STD
Serum albumin,
67,000
Ovalbumin,
43,000
Carbonic anhydrase,
30,000
8
Trypsin inhibitor,
20,000
10
cm migrated
2.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images

Recommended textbooks for you

Biochemistry
Biochemistry
ISBN:
9781319114671
Author:
Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:
W. H. Freeman

Lehninger Principles of Biochemistry
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY

Biochemistry
Biochemistry
ISBN:
9781319114671
Author:
Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:
W. H. Freeman

Lehninger Principles of Biochemistry
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY

Biochemistry
Biochemistry
ISBN:
9781305961135
Author:
Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:
Cengage Learning

Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning

Fundamentals of General, Organic, and Biological …
Biochemistry
ISBN:
9780134015187
Author:
John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:
PEARSON