Human Complement C4d

Mouse

Human (tested or 100% immunogen sequence identity)

IgG1 Monoclonal

057-51.5.1.6

Unconjugated

Protein A purified

Unmodified

Purified human C4d.

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 opsonization 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 erythematosus.

• IHC - Frozen
• Flow Cytometry
• ELISA

BBS, 0.1% Sodium Azide

Store at 4°C or at -20°C. Store undiluted. Avoid freeze-thaw cycles. Microcentrifugation recommended if solution contains precipitate.

For research use only. Intended for use by laboratory professionals.

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