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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

Fig. 1.

Fig. 1

Inhibition of peptide carbamylation by different buffers. Angiotensin and neurotensin were incubated at 37°C for 18h in different buffers (0.1M PB, 0.2M Tris-HCl and 0.2M NH4HCO3) with 1.6M urea solution. A) Carbamylation of angiotensin peptide at its N-terminus in different buffers with urea. B) Carbamylation of neurotensin at the side chain of Lys in different buffers with urea. C) Relative carbamylation of angiotensin and neurotensin in different buffers with urea. D) Inhibition of peptide carbamylation by different concentrations of NH4HCO3.