Anti-COMP (Thrombospondin-5), clone 484D1 (rat monoclonal)

Species Reactivity	Key Applications	Host	Format	Antibody Type
H	WB, IHC	R	Purified	Monoclonal Antibody

Species Reactivity

Key Applications

Host

Format

Antibody Type

WB, IHC

Purified

Monoclonal Antibody

Description
Catalogue Number	MABT36
Description	Anti-COMP (Thrombospondin-5) Antibody, clone 484D1
Alternate Names	Cartilage oligomeric matrix protein Thrombospondin-5
Background Information	Cartilage oligomeric matrix protein (COMP, Thrombospondin-5, TSP5) is a member of the thrombospondin gene family. COMP is usually found in the extracellular matrix and is regularly linked to cartilage tissue. COMP seems to protect chondrocytes against cell death, whether tumor necrosis factor alpha is present or not. Defects in COMP are the cause of multiple epiphyseal dysplasia type 1 and pseudoachondroplasia.

Description

Catalogue Number

MABT36

Description

Anti-COMP (Thrombospondin-5) Antibody, clone 484D1

Alternate Names

Cartilage oligomeric matrix protein
Thrombospondin-5

Background Information

Cartilage oligomeric matrix protein (COMP, Thrombospondin-5, TSP5) is a member of the thrombospondin gene family. COMP is usually found in the extracellular matrix and is regularly linked to cartilage tissue. COMP seems to protect chondrocytes against cell death, whether tumor necrosis factor alpha is present or not. Defects in COMP are the cause of multiple epiphyseal dysplasia type 1 and pseudoachondroplasia.

Product Information
Format	Purified
Control	Human chrondrocyte cell lysate
Presentation	Purified rat monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Product Information

Format

Purified

Control

Human chrondrocyte cell lysate

Presentation

Purified rat monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Applications
Application	This Anti-COMP (Thrombospondin-5) Antibody, clone 484D1 is validated for use in WB, IH for the detection of COMP (Thrombospondin-5).
Key Applications	Western Blotting Immunohistochemistry
Application Notes	Immunohistochemistry (Frozen Tissue) Analysis: A previous lot of this antibody was shown to detect COMP in osteoblasts lining the bone spicules of adult human subchondral bone section (Di Cesare, P.E., et al. (2000). Journal of Orthopaedic Research. 18:713.720).

Applications

Application

This Anti-COMP (Thrombospondin-5) Antibody, clone 484D1 is validated for use in WB, IH for the detection of COMP (Thrombospondin-5).

Key Applications

Western Blotting
Immunohistochemistry

Application Notes

Immunohistochemistry (Frozen Tissue) Analysis: A previous lot of this antibody was shown to detect COMP in osteoblasts lining the bone spicules of adult human subchondral bone section (Di Cesare, P.E., et al. (2000). Journal of Orthopaedic Research. 18:713.720).

Biological Information
Immunogen	Human cartilage oligometric matrix recombinant protein.
Clone	484D1
Concentration	Please refer to the Certificate of Analysis for the lot-specific concentration.
Host	Rat
Isotype	IgG1κ
Species Reactivity	Human
Antibody Type	Monoclonal Antibody
Entrez Gene Number	NP_000086
Entrez Gene Summary	The protein encoded by this gene is a noncollagenous extracellular matrix (ECM) protein. It consists of five identical glycoprotein subunits, each with EGF-like and calcium-binding (thrombospondin-like) domains. Oligomerization results from formation of a five-stranded coiled coil and disulfides. Binding to other ECM proteins such as collagen appears to depend on divalent cations. Mutations can cause the osteochondrodysplasias pseudochondroplasia (PSACH) and multiple epiphyseal dysplasia (MED). [provided by RefSeq].
Gene Symbol	COMP TSP5
Purification Method	Protein G Purified
UniProt Number	P49747
UniProt Summary	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 (By similarity). COFACTOR: Binds 11-14 calcium ions per subunit. SUBUNIT STRUCTURE: Pentamer; disulfide-linked. Exists in a more compact conformation in the presence of calcium and shows a more extended conformation in the absence of calcium. Interacts with ITGB3, ITGA5 and FN1. Binding to FN1 requires the presence of divalent cations (Ca2+, Mg2+ or Mn2+). The greatest amount of binding is seen in the presence of Mn2+. Interacts with MATN1, MATN3, MATN4 and ACAN. Binds heparin, heparan sulfate and chondroitin sulfate. EDTA dimishes significantly its binding to ACAN and abolishes its binding to MATN3, MATN4 and chondroitin sulfate. Interacts with collagen I, II and IX, and interaction with these collagens is dependent on the presence of zinc ions. Interacts with ADAMTS12. Interacts with ITGA7 (By similarity). SUBCELLULAR LOCATION: Secreted › extracellular space › extracellular matrix. TISSUE SPECIFICTY: 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. 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. 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. SEQUENCE CAUTION: The sequence AAB86501.1 differs from that shown. Reason: Erroneous gene model prediction.
Molecular Weight	~83 kDa Observed

Biological Information

Immunogen

Human cartilage oligometric matrix recombinant protein.

Clone

484D1

Concentration

Please refer to the Certificate of Analysis for the lot-specific concentration.

Host

Rat

Isotype

IgG1κ

Species Reactivity

Human

Antibody Type

Monoclonal Antibody

Entrez Gene Number

NP_000086

Entrez Gene Summary

The protein encoded by this gene is a noncollagenous extracellular matrix (ECM) protein. It consists of five identical glycoprotein subunits, each with EGF-like and calcium-binding (thrombospondin-like) domains. Oligomerization results from formation of a five-stranded coiled coil and disulfides. Binding to other ECM proteins such as collagen appears to depend on divalent cations. Mutations can cause the osteochondrodysplasias pseudochondroplasia (PSACH) and multiple epiphyseal dysplasia (MED). [provided by RefSeq].

Gene Symbol

COMP
TSP5

Purification Method

Protein G Purified

UniProt Number

P49747

UniProt Summary

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 (By similarity).

COFACTOR: Binds 11-14 calcium ions per subunit.

SUBUNIT STRUCTURE: Pentamer; disulfide-linked. Exists in a more compact conformation in the presence of calcium and shows a more extended conformation in the absence of calcium. Interacts with ITGB3, ITGA5 and FN1. Binding to FN1 requires the presence of divalent cations (Ca2+, Mg2+ or Mn2+). The greatest amount of binding is seen in the presence of Mn2+. Interacts with MATN1, MATN3, MATN4 and ACAN. Binds heparin, heparan sulfate and chondroitin sulfate. EDTA dimishes significantly its binding to ACAN and abolishes its binding to MATN3, MATN4 and chondroitin sulfate. Interacts with collagen I, II and IX, and interaction with these collagens is dependent on the presence of zinc ions. Interacts with ADAMTS12. Interacts with ITGA7 (By similarity).

SUBCELLULAR LOCATION: Secreted › extracellular space › extracellular matrix.

TISSUE SPECIFICTY: 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.

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.

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.

SEQUENCE CAUTION: The sequence AAB86501.1 differs from that shown. Reason: Erroneous gene model prediction.

Molecular Weight

~83 kDa Observed

Product Usage Statements
Quality Assurance	Evaluated by Western Blot in human chrondrocytes cell lysate. Western Blot Analysis: 0.5 µg/mL of this antibody detected COMP in 10 µg of human chrondrocyte cell lysate.
Usage Statement	Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Product Usage Statements

Quality Assurance

Evaluated by Western Blot in human chrondrocytes cell lysate.

Western Blot Analysis: 0.5 µg/mL of this antibody detected COMP in 10 µg of human chrondrocyte cell lysate.

Usage Statement

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage and Shipping Information
Storage Conditions	Stable for 1 year at 2-8°C from date of receipt.

Storage and Shipping Information

Storage Conditions

Stable for 1 year at 2-8°C from date of receipt.

Packaging Information
Material Size	100 µg

Packaging Information

Material Size

100 µg

实验耗材

分子生物学试剂

蛋白与免疫学

生化试剂

细胞及检测试剂

色谱及层析

仪器设备

实验服务

办公用品

Anti-COMP (Thrombospondin-5), clone 484D1 (rat monoclonal)

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