a) Electrospray ionization of this small protein typically results in major charge states of +8, +9, +10, +11, +12, and +13.  Using this information, complete the table below, assuming the charges on each come from protonation.  Report mass and m/z values to the ones place.  b) Using the data you entered in the table, sketch an expected ESI-MS spectrum for ubiquitin. Label each peak with its charge state.  What do you notice about the spacing of peaks along the x-axis. c)The figure shows an experimentally obtained electrospray mass spectrum for ubiquitin. Compare this spectrum to the spectrum you predicted. Are there any differences? If so, what might cause these differences?

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
icon
Related questions
icon
Concept explainers
Question

1)Ubiquitin is a small protein with a monoisotopic mass of 8560 Da.

a) Electrospray ionization of this small protein typically results in major charge states of +8, +9, +10, +11, +12, and +13.  Using this information, complete the table below, assuming the charges on each come from protonation.  Report mass and m/z values to the ones place. 

b) Using the data you entered in the table, sketch an expected ESI-MS spectrum for ubiquitin. Label each peak with its charge state.  What do you notice about the spacing of peaks along the x-axis.

c)The figure shows an experimentally obtained electrospray mass spectrum for ubiquitin. Compare this spectrum to the spectrum you predicted. Are there any differences? If so, what might cause these differences?

ESI-MS spectrum of bovine ubiquitin from Protea Biosciences.
779.83
100
714.92
857.67
952.75
660,00
1071.75
1224.75
1428.67
1714.00
o da
400
600
800
1000
1200
1400
1600
1800
m/z
Relative Abundance
Transcribed Image Text:ESI-MS spectrum of bovine ubiquitin from Protea Biosciences. 779.83 100 714.92 857.67 952.75 660,00 1071.75 1224.75 1428.67 1714.00 o da 400 600 800 1000 1200 1400 1600 1800 m/z Relative Abundance
Mass of [M+zH]
m/z
9
10
11
12
13
Transcribed Image Text:Mass of [M+zH] m/z 9 10 11 12 13
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Macromolecules
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Biochemistry
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
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…
Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305961135
Author:
Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:
Cengage Learning
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning
Fundamentals of General, Organic, and Biological …
Fundamentals of General, Organic, and Biological …
Biochemistry
ISBN:
9780134015187
Author:
John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:
PEARSON