The effect of the secondary structure on dissociation of peptide radical cations: fragmentation of angiotensin III and its analogues.

Abstract

Fragmentation of protonated RVYIHPF and RVYIHPF-OMe and the corresponding radical cations was studied using time- and collision energy-resolved surface-induced dissociation (SID) in a Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS) specially equipped to perform SID experiments. Peptide radical cations were produced by gas-phase… (More)
DOI: 10.1021/jp805226x

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