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complement C4a
Distinguished from C4A = C4S one of 2 forms of intact C4.
Interactions
molecular events
General
anaphylatoxin
complement-4 (C4)
Properties
COMPARTMENT: plasma
SIZE: MW = 9 kD
MOTIF: N-glycosylation site {N226}
cysteine residue {C702}
MODIFICATION: cysteine residue {C728}
cysteine residue {C703}
MODIFICATION: cysteine residue {C735}
cysteine residue {C716}
MODIFICATION: cysteine residue {C736}
cysteine residue {C728}
MODIFICATION: cysteine residue {C702}
cysteine residue {C735}
MODIFICATION: cysteine residue {C703}
cysteine residue {C736}
MODIFICATION: cysteine residue {C716}
N-glycosylation site {N862}
N-glycosylation site {N1328}
N-glycosylation site {N1391}
sulfotyrosine site {Y1417}
MODIFICATION: sulfate
sulfotyrosine site {Y1420}
MODIFICATION: sulfate
sulfotyrosine site {Y1422}
MODIFICATION: sulfate
References
Clinical Diagnosis and Management by Laboratory Methods,
18th ed, J.B. Henry (ed), W.B. Saunders, Philadelphia,
PA, 1991 pg 832