Hexaglycine and capped hexaglycine are used in physicochemical studies of peptide structure dynamics. Hexaglycine is used as a model compound in development of peptide quantitation and separation methods.
A novel method is presented for the quantitation of peptides based on their methylation by in vacuo chemical reaction with methyl iodide. Samples of two small peptides, hexaglycine and pentaalanine, were labeled with CH(3)I and CD(3)I, representing the "unknown" and
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 47(4), 427-452 (2016-10-21)
On the Hadean-Early Archean Earth, the first islands must have provided hot and dry environments for abiotically formed organic molecules. The heat sources, mainly volcanism and meteorite impacts, were also available on Mars during the Noachian period. In recent work
The journal of physical chemistry. B, 115(6), 1562-1570 (2011-01-26)
We compare the energies and enthalpies of inter-action of three- and seven-stranded capped polyglycine aggregates in both the pleated and rippled antiparallel and parallel β-sheet structures as well as the collagenic (three-strand) or polyglycine II-like (seven-strand) forms using density functional
Journal of the American Society for Mass Spectrometry, 25(10), 1716-1729 (2014-07-30)
It is shown that y-type ions, after losing C-terminal H2O or NH3, can lose an internal backbone carbonyl (CO) from different peptide positions and yield structurally different product fragment ions upon collision-induced dissociation (CID). Such CO losses from internal peptide
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