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Structural and spectroscopic analysis of hydrogensquarates of glycine-containing tripeptides

✍ Scribed by Bojidarka B. Koleva; Tsonko M. Kolev; Michael Spiteller

Publisher
Wiley (John Wiley & Sons)
Year
2006
Tongue
English
Weight
337 KB
Volume
83
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

The hydrogensquarates of glycine‐containing tripeptides glycylglycylglycine (H‐Gly‐Gly‐Gly‐OH), glycylglycylmethionine (H‐Gly‐Gly‐Met‐OH), and methionylglycylglycine (H‐Met‐Gly‐Gly‐OH) have been characterized structurally. Quantum chemical ab initio calculations, solid‐state linear‐dichroic infrared (IR–LD) spectroscopy, ^1^H and ^13^C NMR data, ESI‐MS, HPLC‐MS/MS, TGV, and DSC methods were employed. The structures consist in a positively charged peptide moiety and a negative hydrogensquarate anion (HSq^−^), stabilized by strong intermolecular hydrogen bonds. © 2006 Wiley Periodicals, Inc. Biopolymers 83: 498–507, 2006

This article was originally published online as an accepted preprint. The “Published Online” date corresponds to the preprint version. You can request a copy of the preprint by emailing the Biopolymers editorial office at [email protected]

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