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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Anal Biochem. 2013 Oct 23;446:76–81. doi: 10.1016/j.ab.2013.10.024

Table 1.

Standard peptides used for peptide carbamylation assay and the peptide masses of their unmodified and carbamylated form.

Peptide Sequencea Unmodified mass (Da) Carbamylated mass (Da)b
Angiotensin D*R*VYIHPFHL 1296.68 1339.69 1382.7
Neurotensin pyro-ELYENK*PR*R*PYIL 1672.92 1715.93 1758.94 1801.95
a

“*” highlighted the amino acid residues that can be carbamylated in urea solution. ‘Pyro-’ represents pyroglutamic acid.

b

The masses of peptides with 1, 2 or 3 amino acid residues carbamylated (+43 Da). All masses are monoisotopic masses [M+H]+.