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Complement C4A Polyclonal Antibody (E-AB-92969)

All Size Price Qty
200μL $ 530.00
120μL $ 320.00
60μL $ 200.00
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For research use only.

Verified Samples Verified Samples in WB: HepG2
Dilution WB 1:500-1:2000
Clonality Polyclonal
Immunogen Recombinant fusion protein of human Complement C4A
Synonyms C4,  C4A,  C4A2,  C4A3,  C4A4,  C4A6,  C4AD,  C4S,  CO4,  CPAMD2,  RG
Swissprot
Calculated MW 187 kDa/192 kDa
Observed MW 192 kDa
The actual band is not consistent with the expectation.

Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include:

1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein.

2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes.

3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1.

4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids).

5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers.

If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane.

Cellular Localization Secreted
Concentration 1 mg/mL
Buffer PBS with 0.01% thiomersal,50% glycerol,pH7.3.
Purification Method Affinity purification
Research Areas Immunology
Conjugation Unconjugated
Storage Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles.
Shipping The product is shipped with ice pack,upon receipt,store it immediately at the temperature recommended.
background This gene encodes the acidic 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 is cleaved to release C4 anaphylatoxin, an antimicrobial peptide and a mediator of local inflammation. Deficiency of this protein is associated with systemic lupus erythematosus and type I diabetes mellitus. 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. Two transcript variants encoding different isoforms have been found for this gene.
Cat.No. Product Name Sizes
E-AB-1003 Goat Anti-Rabbit IgG(H+L)(peroxidase/HRP conjugated) 500μL , 120μL , 60μL
E-AB-1043 Streptavidin(peroxidase/HRP conjugated) 500μL , 120μL , 60μL
E-AB-1194 HRP-Goat Anti-Rabbit IgG(H+L) preadsorbed 500μL , 120μL , 1mL
E-IR-R304A Western Blot Detection Kit 50Assays
E-IR-R304B High Accuracy and Absorbability Western Blot Detection Kit 50Assays
Other Clones

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Unconjugated

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