Form
Liquid
Buffer
PBS, 0.1% BSA
Preservative
0.05% Sodium azide
Storage
Store as concentrated solution. Centrifuge briefly prior to opening vial. Store at 4ºC.
Concentration
Batch dependent (Please refer to the vial label for the specific concentration.)
Antigen Species
Human
Immunogen
A recombinant fragment specific to Complement 4d
Purification
Purified IgG
Conjugation
Unconjugated
Note
For laboratory research use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
Purchasers shall not, and agree not to enable third parties to, analyze, copy, reverse engineer or otherwise attempt to determine the structure or sequence of the product.
Synonyms
complement C4B (Chido blood group) , C4B1 , C4B12 , C4B2 , C4B3 , C4B5 , C4BD , C4B_2 , C4F , CH , CO4 , CPAMD3
Cellular Localization
Secreted , Cell junction, synapse , Cell projection, dendrite
Background
This gene encodes the basic form of complement factor 4, part of the classical activation pathway. The protein is expressed as a single chain precursor which is proteolytically cleaved into a trimer of alpha, beta, and gamma chains prior to secretion. The trimer provides a surface for interaction between the antigen-antibody complex and other complement components. The alpha chain may be cleaved to release C4 anaphylatoxin, a mediator of local inflammation. Deficiency of this protein is associated with systemic lupus erythematosus. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. Varying haplotypes of this gene cluster exist, such that individuals may have 1, 2, or 3 copies of this gene. In addition, this gene exists as a long form and a short form due to the presence or absence of a 6.4 kb endogenous HERV-K retrovirus in intron 9. [provided by RefSeq, Jul 2008]
Database
Research Area