Pimenov, KV and Bykov, SV and Mikhonin, AV and Asher, SA
(2005)
UV raman examination of α-helical peptide water hydrogen bonding.
Journal of the American Chemical Society, 127 (9).
2840 - 2841.
ISSN 0002-7863
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Abstract
UV resonance Raman spectra (UVRS) of an α-helical, 21 residue, mainly Ala peptide (AP) in the dehydrated solid state were compared to those in aqueous solution at different temperatures. The UVRS amide band frequencies of a dehydrated solid α-helix peptide show frequency shifts compared to those in aqueous solution due to the loss of amide backbone hydrogen bonding to water; the amide II and amide III bands of the solid α-helix downshift, while the amide I band upshifts. The shifts are identical in direction but smaller than those that occur for α-helices in aqueous solution as the temperature increases; water hydrogen bonding strengths decrease as the temperature increases. The UV Raman amide band frequency shifts can be used to monitor α-helix hydrogen bonding. Copyright © 2005 American Chemical Society.
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Details
Item Type: |
Article
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Status: |
Published |
Creators/Authors: |
Creators | Email | Pitt Username | ORCID ![](/images/orcid_id_24x24.png) |
---|
Pimenov, KV | | | | Bykov, SV | | | | Mikhonin, AV | | | | Asher, SA | asher@pitt.edu | ASHER | |
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Date: |
9 March 2005 |
Date Type: |
Publication |
Journal or Publication Title: |
Journal of the American Chemical Society |
Volume: |
127 |
Number: |
9 |
Page Range: |
2840 - 2841 |
DOI or Unique Handle: |
10.1021/ja044708f |
Schools and Programs: |
Dietrich School of Arts and Sciences > Chemistry |
Refereed: |
Yes |
ISSN: |
0002-7863 |
MeSH Headings: |
Cold Temperature; Hot Temperature; Hydrogen Bonding; Kinetics; Peptides--chemistry; Polyglutamic Acid--chemistry; Polylysine--chemistry; Protein Structure, Secondary; Spectrophotometry, Ultraviolet--methods; Spectrum Analysis, Raman--methods; Water--chemistry |
PubMed ID: |
15740105 |
Date Deposited: |
08 Feb 2013 21:20 |
Last Modified: |
02 Feb 2019 15:59 |
URI: |
http://d-scholarship-dev.library.pitt.edu/id/eprint/17177 |
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