This antibody recognises a neoantigen on the secreted protein complement component 4d (C4d). The complement 1 complex cleaves complement 4 (C4) to form C4b and C4a. C4b levels are strictly regulated. Single site cleavage of the C4b’s alpha chain by Factor I forms iC4b and blocks C3 convertase, inhibiting opsonisation and activation of the classical pathway. This requires C4 binding protein or CR1 as a cofactor. iC4b is further degraded into C4d and C4c. The short half life of C4d means that it is present in serum at high enough concentrations to make it a useful marker for classical complement activation.C4 has been linked to susceptibility to systemic lupus erythematosous.
Applications
ELISA, IHC-Fr
Reactivity
Human
Immunogen
Purified human C4d.
Host
Mouse
Clonality
Monoclonal
Clone ID
057-51.5.1.6
Isotype
IgG1
Conjugate
Unconjugated
Purification
Protein A affinity chromatography of ascites.
Concentration
Lot Specific
Product Form
Liquid
Formulation
Supplied in Borate Buffered Saline with 0.1% Sodium Azide.
Storage
Shipped at ambient temperature. Upon delivery aliquot and store at -20°C. When thawed, aliquot the sample as needed. Short term (up to 4 weeks): store at 4°C. Long term: store at -20°C. Avoid freeze / thaw cycles. Storage in frost free freezers is not recommended.
General Notes
Mouse anti Human C4d (Neoantigen) antibody, clone 057-51.5.1.6 recognizes a neoantigen on the secreted protein complement component 4d (C4d). The complement 1 complex cleaves complement 4 (C4) to form C4b and C4a. C4b levels are strictly regulated. Single site cleavage of the C4b’s alpha chain by Factor I forms iC4b and blocks C3 convertase, inhibiting opsonisation and activation of the classical pathway. This requires C4 binding protein or CR1 as a cofactor. iC4b is further degraded into C4d and C4c. The short half life of C4d means that it is present in serum at high enough concentrations to make it a useful marker for classical complement activation.C4 has been linked to susceptibility to systemic lupus erythematosous.