| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Collagen alpha-3(IV) chain, Goodpasture antigen, COL4A3, Glomerular Basal Membrane, GBM. |
| Cellular Localization | |
| Conjugate | |
| Expression System | |
| Form | Sterile Filtered clear solution. |
| Formulation | |
| Product Type | |
| Protein Size | |
| Purity | |
| Source | Sf9 insect cells. |
| Species | |
| Storage | |
| Target |
Recombinant Human Collagen Type IV Alpha 3, Biotinylated is supplied as a recombinant protein for in vitro research use.
Background
Type IV collagen is a major structural component of basement membranes. It is a multimeric protein composed of 3 alpha subunits, which are encoded by 6 different genes, alpha 1 through alpha
6. Each of these alpha subunits can form a triple helix structure with 2 other subunits to form type IV collagen. The Goodpasture syndrome is a condition in which autoantibodies bind to the collagen molecules in the basement membranes of alveoli and glomeruli. The epitopes that elicit these autoantibodies are restricted basically to the non-collagenous C-terminal domain of the protein. There are numerous alternative transcripts that appear to be unique to the human COL4A3 and alternative splicing is limited to the six exons that encode this C-terminal domain. COL4A3 is also linked to an autosomal recessive form of Alport syndrome. The mutations contributing to the Alport syndrome are also situated within the exons that encode this C-terminal region. COL4A3 is organized in a head-to-head conformation with another type IV collagen gene so that each gene pair shares a common promoter. Several exons of COL4A3 are interspersed with exons of an uncharacterized gene which is on the opposite strand.
Product format
Provided as a recombinant protein suitable for in vitro workflows such as binding studies, screening, and assay development. Refer to the specifications table for expression format and molecular properties.
Activity & assay information
- Note: It has been reported that the immunodominant epitope of COL4A3 is a cryptic epitope that is not easily accessible to the corresponding autoantibodies. It is necessary to treat the protein under nonreducing conditions with a denaturant such as urea to unmask the epitopes (see Hellmark et al. in Autoantibodies, Peter, J.B. and Shoenfeld, Y., eds., Elsevier B.V., 1996, pp 291-298).
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Immunological functions: 1. Binds IgG type human auto antibodies.
2. Functional Streptavidin based ELISA test (analysis of positive/negative samples.)
What is the purity of Recombinant Human Collagen Type IV Alpha 3, Biotinylated (Human)?
What buffer / formulation is this protein supplied in?
How should Recombinant Human Collagen Type IV Alpha 3, Biotinylated (Human) be stored?
What expression system was used to produce this protein?
Is this protein approved for clinical or in vitro diagnostic use?
Can I request a custom size, tag variant, or formulation?
Can’t Find What You’re Looking For? We can help you source the best match or customize a recombinant protein solution for your study. Options may include species (human/mouse/rat), protein region/domain (full-length vs fragment), tag or label (His/GST/FLAG/biotin/fluorescent), expression system (E. coli/HEK293/insect), purity grade, formulation (buffer, carrier-free, glycerol-free), activity/functional validation (binding or enzymatic assays), endotoxin level (low-endotoxin for cell-based work), mutants/variants (point mutations, isoforms), and bulk or custom packaging. Click Talk to a Scientist to submit a request form, email us at support@biohippo.com, or explore our Research Services for additional support. Our team will be in contact with you shortly.
