Human COMP ELISA Kit (ab213764)
Key features and details
- Sensitivity: 10 pg/ml
- Range: 156 pg/ml - 10000 pg/ml
- Sample type: Cell culture supernatant, Cell Lysate, EDTA Plasma, Hep Plasma, Serum
- Detection method: Colorimetric
- Assay type: Sandwich (quantitative)
- Reacts with: Human
Overview
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Product name
Human COMP ELISA Kit
See all COMP/Cartilage oligomeric matrix protein kits -
Detection method
Colorimetric -
Precision
Intra-assay Sample n Mean SD CV% 1 16 1.02ng/ml 0.052 5.1% 2 16 3.12ng/ml 0.131 4.2% 3 16 6.19ng/ml 0.254 4.1% Inter-assay Sample n Mean SD CV% 1 24 1.13ng/ml 0.07 6.2% 2 24 3.08ng/ml 0.166 5.4% 3 24 6.23ng/ml 0.324 5.2% -
Sample type
Cell culture supernatant, Serum, Cell Lysate, Hep Plasma, EDTA Plasma -
Assay type
Sandwich (quantitative) -
Sensitivity
< 10 pg/ml -
Range
156 pg/ml - 10000 pg/ml -
Assay time
3h 30m -
Assay duration
Multiple steps standard assay -
Species reactivity
Reacts with: Human -
Product overview
The Human COMP Enzyme-Linked Immunosorbent Assay (ELISA) kit (ab213764) is designed for the quantitative measurement of Human COMP in cell culture supernatants, cell lysates, tissue homogenates, serum and plasma (heparin, EDTA).
The ELISA kit is based on standard sandwich enzyme-linked immunosorbent assay technology. A polyclonal antibody from goat specific for COMP has been pre-coated onto 96-well plates. Standards (Expression system for standard: NSO; Immunogen sequence: Q21-A757) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for COMP is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex is added and unbound conjugates are washed away with PBS or TBS buffer. HRP substrate TMB is used to visualize HRP enzymatic reaction. TMB is catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the Human COMP amount of sample captured in plate.
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Notes
Cartilage oligomeric matrix protein is a protein that in humans is encoded by the COMP gene. The sequences of rat and bovine COMP indicate that it is a member of the thrombospondin gene family. By Southern blot analysis of a somatic cell hybrid DNA panel and by isotopic in situ hybridization, human COMP gene was mapped to 19p13.1, and the murine COMP gene was mapped to the central region of mouse chromosome 8 by use of an interspecific backcross mapping panel. COMP is a marker of cartilage turnover.
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Platform
Pre-coated microplate (12 x 8 well strips)
Properties
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Storage instructions
Store at -20°C. Please refer to protocols. -
Components Identifier 1 x 96 tests 1 x 96 tests ABC Diluent Buffer Blue Cap 1 x 12ml 1 x 12ml Adhesive Plate Seal 4 units 4 units Antibody Diluent Buffer Green Cap 1 x 12ml 1 x 12ml Anti-Human COMP coated Microplate (12 x 8 wells) 1 unit 1 unit Avidin-Biotin-Peroxidase Complex (ABC) 1 x 100µl 1 x 100µl Biotinylated anti- Human COMP antibody 1 x 100µl 1 x 100µl Lyophilized recombinant Human COMP standard 2 vials 2 vials Sample Diluent Buffer Green Cap 1 x 30ml 1 x 30ml TMB Color Developing Agent Black Cap 1 x 10ml 1 x 10ml TMB Stop Solution Yellow Cap 1 x 10ml 1 x 10ml Wash Buffer (25X) 1 x 20ml 1 x 20ml -
Research areas
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Function
May play a role in the structural integrity of cartilage via its interaction with other extracellular matrix proteins such as the collagens and fibronectin. Can mediate the interaction of chondrocytes with the cartilage extracellular matrix through interaction with cell surface integrin receptors. Could play a role in the pathogenesis of osteoarthritis. Potent suppressor of apoptosis in both primary chondrocytes and transformed cells. Suppresses apoptosis by blocking the activation of caspase-3 and by inducing the IAP family of survival proteins (BIRC3, BIRC2, BIRC5 and XIAP). Essential for maintaining a vascular smooth muscle cells (VSMCs) contractile/differentiated phenotype under physiological and pathological stimuli. Maintains this phenotype of VSMCs by interacting with ITGA7. -
Tissue specificity
Abundantly expressed in the chondrocyte extracellular matrix, and is also found in bone, tendon, ligament and synovium and blood vessels. Increased amounts are produced during late stages of osteoarthritis in the area adjacent to the main defect. -
Involvement in disease
Defects in COMP are the cause of multiple epiphyseal dysplasia type 1 (EDM1) [MIM:132400]. EDM is a generalized skeletal dysplasia associated with significant morbidity. Joint pain, joint deformity, waddling gait, and short stature are the main clinical signs and symptoms. EDM is broadly categorized into the more severe Fairbank and the milder Ribbing types.
Defects in COMP are the cause of pseudoachondroplasia (PSACH) [MIM:177170]. PSAC is a dominantly inherited chondrodysplasia characterized by short stature and early-onset osteoarthrosis. PSACH is more severe than EDM1 and is recognized in early childhood. -
Sequence similarities
Belongs to the thrombospondin family.
Contains 4 EGF-like domains.
Contains 1 TSP C-terminal (TSPC) domain.
Contains 8 TSP type-3 repeats. -
Developmental stage
Present during the earliest stages of limb maturation and is later found in regions where the joints develop. -
Domain
The cell attachment motif mediates the attachment to chondrocytes. It mediates the induction of both the IAP family of survival proteins and the antiapoptotic response.
The TSP C-terminal domain mediates interaction with FN1 and ACAN. -
Cellular localization
Secreted > extracellular space > extracellular matrix. - Information by UniProt
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Alternative names
- Cartilage oligomeric matrix protein
- cartilage oligomeric matrix protein (pseudoachondroplasia, epiphyseal dysplasia 1, multiple)
- Cartilage oligomeric matrix protein precursor
see all -
Database links
- Entrez Gene: 1311 Human
- Omim: 600310 Human
- SwissProt: P49747 Human
- Unigene: 1584 Human
Datasheets and documents
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SDS download
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Datasheet download
References (0)
ab213764 has not yet been referenced specifically in any publications.