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. Author manuscript; available in PMC: 2010 Dec 1.
Published in final edited form as: Biol Chem. 2009 Dec;390(12):1313–1320. doi: 10.1515/BC.2009.136

Table 2. Observed molecular masses of reduced and alkylated fractions of RgpB treated Elafin.

Fraction numbers are the same as in Table 1. Fractions were reduced, alkylated and separated by HPLC. Resulting fractions were measure by ESI-MS. Calculated molecular masses of reduced and alkylated cleavage products of elafin are given. Elafin product describes the amino acid position of the correlating theoretical molecular mass.

Fraction number # Observed Molecular Mass Theoretical Molecular Mass Elafin Product
2 2347.4 2347.81 Elafin 1-22
2 4132.79 4133.88 Elafin 23-57
3 2348.3 2347.81 Elafin 1-22
3 4132.8 4133.88 Elafin 23-57
4 1696.11 1695.06 Elafin 7-22
4 4131.98 4133.88 Elafin 23-57