Abcam, ab174082, Recombinant human COMP/Cartilage oligomeric matrix protein (Active)

Size: 100µg
Recombinant human COMP/Cartilage oligomeric matrix protein (Active) is a Human Full Length protein, in the 21 to 757 aa range, expressed in HEK 293 cells, with >90%, < 1 EU/µg endotoxin level, suitable for SDS-PAGE, FuncS.
Key facts
Purity:>90% SDS-PAGE,
Endotoxin level:< 1 EU/µg,
Expression system:HEK 293 cells,
Tags:His tag C-Terminus,
Applications:SDS-PAGE, FuncSSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Biologically active:Yes,
Biological activity:Measured by its ability to induce adhesion of ATDC5 mouse chondrogenic cells, when COMP / Thrombospondin‑5 immobilized at 1 μg/well.More than 45% of ATDC-5 cell adhesion will be induced.,
Accession:P49747,
Animal free:No,
Carrier free:No,
Species:Human,
Reconstitution:Reconstitute with sterile deionized water to a concentration of 200 µg/ml.,
Storage buffer:pH: 7.4Constituents: 3% Trehalose, 0.6% Tris, 0.58% Sodium chloride

Product details:
This product was previously labelled as COMP

Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon reconstitution add a carrier protein (0.1% BSA), Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The Cartilage Oligomeric Matrix Protein (COMP) also known as oligomeric protein or COMP cartilage protein is a structural component found in the extracellular matrix of cartilage tissues. This matrix protein has a mass of approximately 524 kDa and is predominantly expressed in cartilage particularly hyaline cartilage. COMP forms pentameric structures which make it an important supporting element in the stability and resilience of cartilage. Researchers often use techniques like COMP ELISA to quantify its levels in biological samples.
Biological function summary
COMP interacts with other extracellular matrix components to enhance structural integrity and function of cartilage tissue. It performs significant roles in the organization and maintenance of the matrix tethering fibrillar proteins and supporting cellular interaction. COMP is not typically part of a large complex but works closely with collagens and other matrix proteins to form a robust and flexible extracellular environment.
Pathways
COMP participates in pathways associated with cartilage formation and turnover. It engages in chondrocyte-mediated processes that are vital for endochondral ossification and cartilage repair. Within these pathways it interacts with proteins such as collagen type II and decorin which facilitate the organization and mineralization of cartilage matrix. These interactions highlight the protein's importance in maintaining cartilage architecture and function.
COMP plays a role in chondrodysplasias and osteoarthritis. Mutations in the COMP gene can lead to skeletal disorders like pseudoachondroplasia and multiple epiphyseal dysplasia causing growth and developmental anomalies. In osteoarthritis alterations in COMP levels may serve as an indicator of cartilage degradation. COMP's relationships with proteins like aggrecan and matrilin-3 in these contexts highlight its involvement in pathologies that affect cartilage structure and health.