Influence of N-terminal residue composition on the structure of proline-containing b2+ ions

Influence of N-terminal residue composition on the structure of proline-containing b2+ ions

AC Gucinski, J Chamot-Rooke… - The Journal of …, 2013 - ACS Publications

... bond trans–cis isomerization can have a significant effect on large protein crystal structures and
peptide b fragment ions alike.(26-28) In peptides, the trans conformation of the peptide bond
is highly favored; the cis conformation is only observed in 0.03–0.05% of peptide bonds. ...

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