Overview

  • Product nameAnti-C4d antibody
    See all C4d primary antibodies
  • Description
    Rabbit polyclonal to C4d
  • Tested applicationsSuitable for: IHC-P, WB, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 950 - 1050 of Human C4d.

    (Peptide available as ab88146.)

  • Positive control
    • This antibody gave a positive signal in Human Plasma Total Protein Lysate.

Properties

  • FormLiquid
  • Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage bufferPreservative: 0.02% Sodium Azide
    Constituents: 1% BSA, PBS, pH 7.4
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas

Associated products

Applications

Our Abpromise guarantee covers the use of ab87424 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-P Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
WB Use a concentration of 1 µg/ml. Detects a band of approximately 85 kDa (predicted molecular weight: 193 kDa).
ICC/IF Use a concentration of 5 µg/ml.

Target

  • FunctionC4 plays a central role in the activation of the classical pathway of the complement system. It is processed by activated C1 which removes from the alpha chain the C4a anaphylatoxin. The remaining alpha chain fragment C4b is the major activation product and is an essential subunit of the C3 convertase (C4b2a) and the C5 convertase (C3bC4b2a) enzymes of the classical complement pathway.
    Derived from proteolytic degradation of complement C4, C4a anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes.
  • Involvement in diseaseDefects in C4A are the cause of complement component 4A deficiency (C4AD) [MIM:120810]. A rare defect of the complement classical pathway associated with the development of autoimmune disorders, mainly systemic lupus with or without associated glomerulonephritis.
  • Sequence similaritiesContains 1 anaphylatoxin-like domain.
    Contains 1 NTR domain.
  • Post-translational
    modifications
    Prior to secretion, the single-chain precursor is enzymatically cleaved to yield the non-identical chains (alpha, beta and gamma). During activation, the alpha chain is cleaved by C1 into C4a and C4b, and C4b stays linked to the beta and gamma chains. Further degradation of C4b by C1 into the inactive fragments C4c and C4d blocks the generation of C3 convertase.
    N- and O-glycosylated. O-glycosylated with a core 1 or possibly core 8 glycan.
  • Cellular localizationSecreted.
  • Information by UniProt
  • Database links
  • Alternative names
    • acidic C4 antibody
    • Acidic complement C4 antibody
    • basic C4 antibody
    • basic complement C4 antibody
    • C3 and PZP-like alpha-2-macroglobulin domain-containing protein 2 antibody
    • C3 and PZP-like alpha-2-macroglobulin domain-containing protein 3 antibody
    • C4 antibody
    • C4, chido form antibody
    • C4, Rodgers form antibody
    • C4-1 antibody
    • C4a anaphylatoxin antibody
    • C4A antibody
    • C4A2 antibody
    • C4A3 antibody
    • C4A4 antibody
    • C4A6 antibody
    • C4AD antibody
    • C4b antibody
    • C4B_2 antibody
    • C4B1 antibody
    • C4B12 antibody
    • C4B2 antibody
    • C4B3 antibody
    • C4B5 antibody
    • C4BD antibody
    • C4d antibody
    • C4d fragment antibody
    • C4F antibody
    • C4S antibody
    • CH antibody
    • Chido form of C4 antibody
    • CO4 antibody
    • CO4A_HUMAN antibody
    • Complement C4 gamma chain antibody
    • complement C4-A antibody
    • complement C4-B antibody
    • complement C4-B-like antibody
    • complement C4B1a antibody
    • Complement component 4A antibody
    • complement component 4A (Rodgers blood group) antibody
    • Complement component 4B antibody
    • complement component 4B (Chido blood group) antibody
    • complement component 4B (Chido blood group), copy 2 antibody
    • complement component 4B (Chido blood group)-like antibody
    • Complement component 4F antibody
    • Complement component 4S antibody
    • CPAMD2 antibody
    • CPAMD3 antibody
    • DADB-112B14.11 antibody
    • MGC164979 antibody
    • RG antibody
    • Rodgers form of C4 antibody
    see all

Anti-C4d antibody images

  • Anti-C4d antibody (ab87424) at 1 µg/ml + Human Plasma Total Protein Lysate (ab83997) at 10 µg

    Secondary
    Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) (ab65484) at 1/3000 dilution (Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) )
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 193 kDa
    Observed band size : 85,193 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 110 kDa,130 kDa,30 kDa,48 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 30 seconds
  • ICC/IF image of ab87424 stained HepG2 cells. The cells were 100% Methanol fixed (5 min) and then incubated in 1%BSA / 10% normal Goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab87424, 5µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 Goat anti-Rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. This antibody also gave a positive result in 100% Methanol fixed (5 min) HeLa, and MCF-7 cells at 5µg/ml.
  • IHC image of C4d staining in human liver carcinoma formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab87424, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

References for Anti-C4d antibody (ab87424)

ab87424 has not yet been referenced specifically in any publications.

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