Human Collagen alpha-1(XVIII) chain ELISA Kit | COL18A1 elisa kit
Human Collagen alpha-1(XVIII) chain ELISA Kit
Principle of the Assay: The microtiter plate provided in this kit has been pre-coated with an antibody specific to target antigen. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody preparation specific for target antigen and then avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then a TMB substrate solution is added to each well. Only those wells that contain target antigen, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of target antigen in the samples is then determined by comparing the O.D. of the samples to the standard curve.
NCBI and Uniprot Product Information
NCBI Description
This gene encodes the alpha chain of type XVIII collagen. This collagen is one of the multiplexins, extracellular matrix proteins that contain multiple triple-helix domains (collagenous domains) interrupted by non-collagenous domains. A long isoform of the protein has an N-terminal domain that is homologous to the extracellular part of frizzled receptors. Proteolytic processing at several endogenous cleavage sites in the C-terminal domain results in production of endostatin, a potent antiangiogenic protein that is able to inhibit angiogenesis and tumor growth. Mutations in this gene are associated with Knobloch syndrome. The main features of this syndrome involve retinal abnormalities, so type XVIII collagen may play an important role in retinal structure and in neural tube closure. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]
Uniprot Description
COL18A1: COLA18A probably plays a major role in determining the retinal structure as well as in the closure of the neural tube. Defects in COL18A1 are a cause of Knobloch syndrome type 1 (KNO1). An autosomal recessive disorder defined by the occurrence of high myopia, vitreoretinal degeneration with retinal detachment, macular abnormalities and occipital encephalocele. Belongs to the multiplexin collagen family. 3 isoforms of the human protein are produced by alternative promoter.
Protein type: Secreted, signal peptide; Secreted
Chromosomal Location of Human Ortholog: 21q22.3
Cellular Component: basement membrane; collagen; endoplasmic reticulum lumen; extracellular matrix; extracellular region; extracellular space
Molecular Function: identical protein binding; metal ion binding; protein binding; structural molecule activity
Biological Process: angiogenesis; cell adhesion; collagen catabolic process; endothelial cell morphogenesis; extracellular matrix disassembly; extracellular matrix organization and biogenesis; negative regulation of cell proliferation; organ morphogenesis; positive regulation of cell migration; positive regulation of cell proliferation; response to drug; response to hydrostatic pressure; visual perception
Disease: Knobloch Syndrome 1
Research Articles on COL18A1
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Product Notes
The Human COL18A1 col18a1 (Catalog #AAA2881480) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA2881480 ELISA Kit recognizes Human COL18A1. It is sometimes possible for the material contained within the vial of "Collagen alpha-1(XVIII) chain, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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