Dissociation behavior of doubly-charged tryptic peptides: correlation of gas-phase cleavage abundance with ramachandran plots - PubMed (original) (raw)
. 2004 Mar 17;126(10):3034-5.
doi: 10.1021/ja038041t.
Affiliations
- PMID: 15012117
- DOI: 10.1021/ja038041t
Dissociation behavior of doubly-charged tryptic peptides: correlation of gas-phase cleavage abundance with ramachandran plots
Yingying Huang et al. J Am Chem Soc. 2004.
Abstract
Analysis of fragmentation patterns from 5654 unique doubly charged tryptic peptides is obtained. Great variability of average relative abundance of bond cleavage is found between different amino acid combinations. There exist similarities as well as differences between b and y ions. Strong enhancement or suppression of cleavage gives insight into possible chemical interactions at reactive conformations formed by preferred phi-psi angles.
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