Table 1. Sequences for the peptide fragments of hAS3MT analyzed by MALDI-TOF-MS.

Sequence	site	Observed	Mr (expt)	Mr (calc)	ppm
DCYVLSQLVGEKGHVTGIDMTK	84–105	2450.28	2449.27	2449.20	28.58
LGEAGIKNESHDIVVSNCVINLVPDK	139–164	2820.89	2819.88	2819.45	152.49
NESHDIVVSNCVINLVPDK	146–164	2152.30	2151.29	2151.06	106.91
ELAVLAQKIGFCPPRLVTANLITIQNK	215–241	3008.05	3007.04	3006.71	109.74
IGFCPPR	223–229	846.31	845.30	845.42	−141.96
FAQDFLIRPIGEKLPTSGGCSALELK	315–340	2847.73	2846.72	2846.50	77.28
CVPDAAGGCCGTKK	360–373	1366.62	1365.61	1365.58	21.97

Values of observed M+H⁺ (Da) are the results of MALDI-TOF-MS in Figure 1a.