• Product nameAnti-COMP antibody
    See all COMP primary antibodies
  • Description
    Rabbit polyclonal to COMP
  • Tested applicationsSuitable for: WBmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant fragment (Rat) Type III repeats and C-terminal region.



Our Abpromise guarantee covers the use of ab42225 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/1000. Predicted molecular weight: 84 kDa.


  • FunctionMay 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 specificityAbundantly 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 diseaseDefects 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 similaritiesBelongs to the thrombospondin family.
    Contains 4 EGF-like domains.
    Contains 1 TSP C-terminal (TSPC) domain.
    Contains 8 TSP type-3 repeats.
  • Developmental stagePresent during the earliest stages of limb maturation and is later found in regions where the joints develop.
  • DomainThe 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 localizationSecreted > extracellular space > extracellular matrix.
  • Information by UniProt
  • Database links
  • Alternative names
    • cartilage oligomeric matrix protein (pseudoachondroplasia, epiphyseal dysplasia 1, multiple) antibody
    • Cartilage oligomeric matrix protein antibody
    • Cartilage oligomeric matrix protein precursor antibody
    • COMP antibody
    • COMP_HUMAN antibody
    • EDM 1 antibody
    • EDM1 antibody
    • EPD 1 antibody
    • EPD1 antibody
    • Epiphyseal dysplasia 1 antibody
    • Epiphyseal dysplasia 1 multiple antibody
    • Epiphyseal dysplasia multiple 1 antibody
    • MED antibody
    • MGC13181 antibody
    • MGC149768 antibody
    • PSACH antibody
    • pseudoachondroplasia (epiphyseal dysplasia 1, multiple) antibody
    • Pseudoachondroplasia antibody
    • THBS 5 antibody
    • THBS5 antibody
    • Thrombospondin 5 antibody
    • Thrombospondin-5 antibody
    • Thrombospondin5 antibody
    • TSP5 antibody
    see all

Anti-COMP antibody images

  • Anti-COMP antibody (ab42225) at 1/1000 dilution + Recombinant Human COMP protein (ab104358) at 0.01 µg

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Exposure time : 2 minutes

References for Anti-COMP antibody (ab42225)

ab42225 has not yet been referenced specifically in any publications.

Product Wall

Application IHC - Wholemount
Sample Zebrafish Embryo (Whole mount staining 3 and 5 day old zebrafish)
Specification Whole mount staining 3 and 5 day old zebrafish

Dr. Chrissy Hammond

Verified customer

Submitted Feb 27 2012