Complement Component 4 (C4)

Complement component 4 (C4), in humans, is a protein involved in the intricate complement system, originating from the human leukocyte antigen (HLA) system. It serves a number of critical functions in immunity, tolerance, and autoimmunity with the other numerous components. Furthermore, it is a crucial factor in connecting the recognition pathways of the overall system instigated by antibody-antigen (Ab-Ag) complexes to the other effector proteins of the innate immune response. For example, the severity of a dysfunctional complement system can lead to fatal diseases and infections. Complex variations of it can also lead to schizophrenia. Yet, the C4 protein derives from a simple two-locus allelic model, the C4A-C4B genes, that allows for an abundant variation in the levels of their respective proteins within a population.

Organism species: Homo sapiens (Human)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA888Hu01 Recombinant Complement Component 4 (C4) Positive Control; Immunogen; SDS-PAGE; WB.
Antibodies PAA888Hu01 Polyclonal Antibody to Complement Component 4 (C4) WB; IHC; ICC; IP.
MAA888Hu22 Monoclonal Antibody to Complement Component 4 (C4) WB; IHC; ICC; IP.
Assay Kits SEA888Hu ELISA Kit for Complement Component 4 (C4) Enzyme-linked immunosorbent assay for Antigen Detection.

Organism species: Mus musculus (Mouse)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA888Mu01 Recombinant Complement Component 4 (C4) Positive Control; Immunogen; SDS-PAGE; WB.
RPA888Mu02 Recombinant Complement Component 4 (C4) Positive Control; Immunogen; SDS-PAGE; WB.
Antibodies PAA888Mu01 Polyclonal Antibody to Complement Component 4 (C4) WB; IHC; ICC; IP.
PAA888Mu02 Polyclonal Antibody to Complement Component 4 (C4) WB; IHC; ICC; IP.
Assay Kits SEA888Mu ELISA Kit for Complement Component 4 (C4) Enzyme-linked immunosorbent assay for Antigen Detection.

Organism species: Rattus norvegicus (Rat)

CATALOG NO. PRODUCT NAME APPLICATIONS
Proteins RPA888Ra01 Recombinant Complement Component 4 (C4) Positive Control; Immunogen; SDS-PAGE; WB.
Antibodies PAA888Ra01 Polyclonal Antibody to Complement Component 4 (C4) WB; IHC; ICC; IP.
MAA888Ra21 Monoclonal Antibody to Complement Component 4 (C4) WB; IHC; ICC; IP.
Assay Kits SEA888Ra ELISA Kit for Complement Component 4 (C4) Enzyme-linked immunosorbent assay for Antigen Detection.