For Research Use Only. Not for use in diagnostic procedures.

Store all reagents at 2-8 degree C

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Small volumes of COL4A3 elisa kit vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS9377292 is a ready-to-use microwell, strip-or-full plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the Collagen Type IV Alpha 3 (COL4A3) ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing COL4A3. The ELISA analytical biochemical technique of the MBS9377292 kit is based on COL4A3 antibody-COL4A3 antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect COL4A3 antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, COL4A3. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).

135,079 Da

collagen type IV alpha 3 chain

collagen alpha-3(IV) chain

Collagen alpha-3(IV) chain

CO4A3_HUMAN

Type IV collagen, the major structural component of basement membranes, is a multimeric protein composed of 3 alpha subunits. These subunits are encoded by 6 different genes, alpha 1 through alpha 6, each of which can form a triple helix structure with 2 other subunits to form type IV collagen. This gene encodes alpha 3. In the Goodpasture syndrome, autoantibodies bind to the collagen molecules in the basement membranes of alveoli and glomeruli. The epitopes that elicit these autoantibodies are localized largely to the non-collagenous C-terminal domain of the protein. A specific kinase phosphorylates amino acids in this same C-terminal region and the expression of this kinase is upregulated during pathogenesis. This gene is also linked to an autosomal recessive form of Alport syndrome. The mutations contributing to this syndrome are also located within the exons that encode this C-terminal region. Like the other members of the type IV collagen gene family, this gene is organized in a head-to-head conformation with another type IV collagen gene so that each gene pair shares a common promoter. [provided by RefSeq, Jun 2010]

COL4A3: Type IV collagen is the major structural component of glomerular basement membranes (GBM), forming a 'chicken-wire' meshwork together with laminins, proteoglycans and entactin/nidogen. 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). 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); 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). 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. Belongs to the type IV collagen family. 5 isoforms of the human protein are produced by alternative splicing.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 2q36-q37

Cellular Component: basement membrane; collagen type IV; endoplasmic reticulum; endoplasmic reticulum lumen; extracellular region; intracellular membrane-bound organelle

Molecular Function: integrin binding; protein binding

Biological Process: blood circulation; caspase activation; cell proliferation; collagen catabolic process; extracellular matrix organization and biogenesis; glomerular basement membrane development; negative regulation of angiogenesis; negative regulation of cell proliferation; sensory perception of sound

Disease: Alport Syndrome, Autosomal Dominant; Alport Syndrome, Autosomal Recessive; Hematuria, Benign Familial

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