S-(L-isoglutamyl)-L-cysteine
(2S)-2-amino-5-[(2R)-2-amino-2-carboxyethyl]sulfanyl-5-oxopentanoic acid
(S,R)-2-amino-4-[S-(2-amino-2-carboxyethyl)thiocarboxy]butanoic acid
-17.0265
-17.03
2-amino-5-(2-amino-2-carboxyethyl)thio-5-oxopentanoic acid
214.041
214.24
A protein modification that effectively crosslinks an L-cysteine residue and an L-glutamine residue by a thioester bond with the formation of S-(L-isoglutamyl)-L-cysteine and the release of ammonia.
C 0 H -3 N -1 O 0 S 0
C 8 H 10 N 2 O 3 S 1
C, Q
CROSSLNK Isoglutamyl cysteine thioester (Cys-Gln)
Cross-link 2; DeltaMass calculates the mass difference from glutamic acid rather than glutamine.
MOD:00117
PSI-MOD
S-(L-isoglutamyl)-L-cysteine
S-gamma-glutamyl (crosslinked to cysteine)
XLNK-SCys-5Glu(Gln)
gamma-(S-cysteinyl)glutamic acid
natural
uniprot.ptm:PTM-0156
thioester crosslinked residues
crosslinked residues with loss of ammonia
crosslinked L-glutamine residue