Overview

  • Product nameAnti-COL4A3 antibody
    See all COL4A3 primary antibodies
  • Description
    Rabbit polyclonal to COL4A3
  • Specificityab72643 detects a fragment of activated COL4A3 resulting from cleavage adjacent to Pro1426.
  • Tested applicationsSuitable for: WB, ELISAmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide derived from human COL4A3.

  • Positive control
    • Extracts from Jurkat cells treated with etoposide (25uM, 24hours) and COS-7 cells treated with etoposide (25uM, 1hour).

Properties

Applications

Our Abpromise guarantee covers the use of ab72643 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
WB 1/500 - 1/1000. Detects a band of approximately 29 kDa (predicted molecular weight: 29 kDa).
ELISA 1/40000.

Target

  • FunctionType IV collagen is the major structural component of glomerular basement membranes (GBM), forming a 'chicken-wire' meshwork together with laminins, proteoglycans and entactin/nidogen.
    Tumstatin, a cleavage fragment corresponding to the collagen alpha 3(IV) NC1 domain, possesses both anti-angiogenic and anti-tumor cell activity; these two anti-tumor properties may be regulated via RGD-independent ITGB3-mediated mechanisms.
  • Tissue specificityAlpha 3 and alpha 4 type IV collagens are colocalized and present in kidney, eye, basement membranes of lens capsule, cochlea, lung, skeletal muscle, aorta, synaptic fibers, fetal kidney and fetal lung. PubMed:8083201 reports similar levels of expression of alpha 3 and alpha 4 type IV collagens in kidney, but PubMed:7523402 reports that in kidney levels of alpha 3 type IV collagen are significantly lower than those of alpha 4 type IV collagen. According to PubMed:8083201, alpha 3 type IV collagen is not detected in heart, brain, placenta, liver, pancreas, extrasynaptic muscle fibers, endoneurial and perineurial nerves, fetal brain, fetal heart and fetal liver. According to PubMed:7523402, alpha 3 type IV collagen is strongly expressed in pancreas, neuroretina and calvaria and not expressed in adrenal, ileum and skin. Isoform 1 and isoform 3 are strongly expressed in kidney, lung, suprarenal capsule, muscle and spleen, in each of these tissues isoform 1 is more abundant than isoform 3. Isoform 1 and isoform 3 are expressed at low levels in artery, fat, pericardium and peripherical nerve, but not in placenta, mesangium, skin, pleura and cultured umbilical endothelial cells.
  • Involvement in diseaseNote=Autoantibodies against the NC1 domain of alpha 3(IV) are found in Goodpasture syndrome, an autoimmune disease of lung and kidney.
    Defects in COL4A3 are a cause of Alport syndrome autosomal recessive (APSAR) [MIM:203780]. APSAR is characterized by progressive glomerulonephritis, glomerular basement membrane defects, renal failure, sensorineural deafness and specific eye abnormalities (lenticonous and macular flecks). The disorder shows considerable heterogeneity in that families differ in the age of end-stage renal disease and the occurrence of deafness.
    Defects in COL4A3 are a cause of benign familial hematuria (BFH) [MIM:141200]; also known as thin basement membrane nephropathy. BFH is characterized by persistent hematuria, an electron microscopically detectable thin glomerular basement membrane (GBM) and an autosomal dominant mode of inheritance. Renal function remains normal. In children, differentiation between BFH and AS can be difficult, because both disorders are manifested by persistent hematuria and thin GBM at that age.
    Defects in COL4A3 are a cause of Alport syndrome autosomal dominant (APSAD) [MIM:104200]. Alport syndrome is characterized by progressive glomerulonephritis, glomerular basement membrane defects, renal failure, sensorineural deafness and specific eye abnormalities (lenticonous and macular flecks). The disorder shows considerable heterogeneity in that families differ in the age of end-stage renal disease and the occurrence of deafness.
  • Sequence similaritiesBelongs to the type IV collagen family.
    Contains 1 collagen IV NC1 (C-terminal non-collagenous) domain.
  • DomainAlpha chains of type IV collagen have a non-collagenous domain (NC1) at their C-terminus, frequent interruptions of the G-X-Y repeats in the long central triple-helical domain (which may cause flexibility in the triple helix), and a short N-terminal triple-helical 7S domain.
  • Post-translational
    modifications
    Prolines at the third position of the tripeptide repeating unit (G-X-Y) are hydroxylated in some or all of the chains.
    Isoform 2 contains an additional N-linked glycosylation site.
    Type IV collagens contain numerous cysteine residues which are involved in inter- and intramolecular disulfide bonding. 12 of these, located in the NC1 domain, are conserved in all known type IV collagens.
    The trimeric structure of the NC1 domains is stabilized by covalent bonds between Lys and Met residues.
    Phosphorylated by the Goodpasture antigen-binding protein/COL4A3BP.
  • Cellular localizationSecreted > extracellular space > extracellular matrix > basement membrane. Colocalizes with COL4A4 and COL4A5 in GBM, tubular basement membrane (TBM) and synaptic basal lamina (BL).
  • Information by UniProt
  • Database links
  • Alternative names
    • Alpha 3 type IV collagen antibody
    • Alpha3 type IV collagen antibody
    • CO4A3_HUMAN antibody
    • COL4A 3 antibody
    • Col4a3 antibody
    • Collagen alpha 3(IV) chain antibody
    • Collagen IV alpha 3 polypeptide antibody
    • Collagen type IV alpha 3 (Goodpasture antigen) antibody
    • Collagen type IV alpha 3 antibody
    • Goodpasture antigen antibody
    • OTTHUMP00000195044 antibody
    • Tumstatin antibody
    see all

Anti-COL4A3 antibody images

  • All lanes : Anti-COL4A3 antibody (ab72643) at 1/500 dilution

    Lane 1 : Extracts from Jurkat cells treated with etoposide (25uM, 24hours)
    Lane 2 : Extracts from COS-7 cells treated with etoposide (25uM, 1hour)
    Lane 3 : Extracts from Jurkat cells treated with etoposide (25uM, 24hours) with Cl-peptide at 5 µg

    Lysates/proteins at 5 µg per lane.


    Predicted band size : 29 kDa
    Observed band size : 29 kDa
    Additional bands at : 20 kDa,42 kDa. We are unsure as to the identity of these extra bands.

References for Anti-COL4A3 antibody (ab72643)

ab72643 has not yet been referenced specifically in any publications.

Product Wall

Abcam has not validated the combination of species/application used in this Abreview.
Application ELISA
Sample Mouse Serum (mouse sera)
Specification mouse sera
Blocking step Milk as blocking agent for 2 hour(s) and 0 minute(s) · Concentration: 5% · Temperature: 25°C
Type Indirect
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Submitted Nov 11 2009

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