Entry Protein Modification Peptide Sequence Mod Site/Crystal Structure Mass spectrum Chemical Formula Exact Mass (Da) Description
FPS195-a Trypsin IA-Ser DSCQGDSGGPVVCSGK S195 MSMS C2H3N1O1 57.02 Carbamidomethylation of Serine 195.
FPS200-a Trypsin IA-Ser DSCQGDSGGPVVCSGK S200 MSMS C2H3N1O1 57.02 Carbamidomethylation of Serine 200 (active site serine).
FPS195-b Trypsin NEM-Ser DSCQGDSGGPVVCSGK S195 MSMS C6H7N1O2 125.05 NEM-labelling of Serine 195.
FPS200-b Trypsin NEM-Ser DSCQGDSGGPVVCSGK S200 MSMS C6H7N1O2 125.05 NEM-labelling of Serine 200 (active site serine).
FPC160-a Trypsin DTT/IA-Cys CLKAPILSDSSCK C160 MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 160 and DTT, followed by its IA capping.
FPC168 Chymotrypsin DTT/IA-Cys LQQASLPLLSNTNCK C168 (not surface-exposed) MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 168 and DTT, followed by its IA capping.
FPC171-a Trypsin DTT/IA-Cys CLKAPILSDSSCK C171 (not surface-exposed) MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 171 and DTT, followed by its IA capping.
FPC171-b Trypsin DTT/IA-Cys APILSDSSCK C171(not surface-exposed MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 171 and DTT, followed by its IA capping (shorter version of the above peptide).
FPC196 Trypsin DTT/IA-Cys DSCQGDSGGPVVCSGK C196 MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 196 and DTT, followed by its IA capping.
FPC206 Trypsin DTT/IA-Cys DSCQGDSGGPVVCSGK C206 MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 206 and DTT, followed by its IA capping.
FPC233 Trypsin DTT/IA-Cys VCNYVSWIK C233 MSMS C6H11N1O3S2 209.02 Formation of a S-S bond between cysteine 233 and DTT, followed by its IA capping.
FPC160-b Trypsin DTT/IA-Cys, IA-Nterm CLKAPILSDSSCK C160 MSMS C8H14N2O4S2 266.04 Labelling of peptide's N-terminus (C160) by IA and formation, at the same cysteine's side chain, of a S-S bond with a DTT molecule capped by IA. 2+ version of the peptide.
FPC160-c Trypsin DTT/IA-Cys, IA-Nterm CLKAPILSDSSCK C160 MSMS C8H14N2O4S2 266.04 Labelling of peptide's N-terminus (C160) by IA and formation, at the same cysteine's side chain, of a S-S bond with a DTT molecule capped by IA. 3+ version of the peptide.