Mouse Anti-Human Complement C3b Monoclonal Antibody (CBP4374)

Description

Complement component 3 (C3) is a 185 kD glycoprotein composed of two chains linked by a disulfide bond. It is the fourth complement component to react in the classical pathway and is a key protein in the alternative and the lectin complement activation pathways. C3b is proteolytically generated from C3 by cleavage of the C3a-C3b peptide bond in the protein by C3 convertase. C3b can bind covalently, via its reactive thioester, to cell surface carbohydrates or immune aggregates. Macrophages and neutrophils recognize C3b by the complement receptor 1 (CR1, CD35). Opsonization of target surfaces with C3b is central to all three pathways of complement activation. The proteolytically inactive forms of C3b, iC3b, are generated by cleavage of the alpha chain at one or two positions by factor I in the presence of co-factors, such as factor H. A ~2 kD fragment of C3b, C3f, is generated when C3b is cleaved at two positions by factor I. Although iC3b is less active than C3b, iC3b's interactions with lymphoid and phagocytic cells via CR2 (CD21) and CR3 (CD11b/CD18) can expand target-specific B and T cells. iC3b, can be cleaved to form C3c and C3dg. Further proteolytic cleavage of C3dg generates C3d and C3g.

Immunogen

Human C3

Species Reactivity

Human

Clonality

Monoclonal

Host Species

Mouse

Isotype

IgG1, κ

Clone Number

CBP4374

Applications

WB; FC; ELISA

Application Notes

WB ( 1.0-10 µg/mL); FCM ( 1.0 - 2.0 µg per million cells in 100 µl volume); ELISA ( 0.01-2.0 µg/mL)

Relevant Diseases

Brain Tumors; Alzheimer's Disease; Parkinson's Disease; Neurocutaneous Syndromes

Research Areas

Neuroinflammation; Neurodegeneration

Conjugation

Unconjugated

Form

Liquid

Formulation

PBS, pH 7.2, containing 0.09% sodium azide.

Concentration

0.5 mg/mL

Purification

Affinity chromatography

Purity

>95%, as determined by Coomassie stained SDS-PAGE.

Shipping

The product is shipped at 4°C. Upon receipt, store it immediately at the recommended temperature.

Storage

Store at -20°C. Upon initial thawing, apportion into working aliquots and store at -20°C. Avoid repeated freeze-thaw cycles to prevent denaturing the antibody.

Handling Advice

Store at -20°C. Upon initial thawing, apportion into working aliquots and store at -20°C. Avoid repeated freeze-thaw cycles to prevent denaturing the antibody.

Research Use Only

For research use only, not for diagnostic or therapeutic use.

Target

Complement-c3b-ic3b

Official Name

C3b

Full Name

Complement C3b

Alternative Names

C3b; Complement C3b