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Human COMP Gene ORF cDNA clone expression plasmid, N-His tag

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Human COMP cDNA Clone Product Information
NCBI RefSeq:NM_000095.2
RefSeq ORF Size:2274bp
cDNA Description:Full length Clone DNA of Homo sapiens cartilage oligomeric matrix protein with N terminal His tag.
Gene Synonym:COMP, MED, EDM1, EPD1, PSACH, THBS5, MGC131819, MGC149768
Species:Human
Vector:pCMV3-SP-N-His
Plasmid:
Restriction Site:
Tag Sequence:His Tag Sequence: CACCATCACCACCATCATCACCACCATCAC
Sequence Description:
Sequencing primers:T7(TAATACGACTCACTATAGGG) BGH(TAGAAGGCACAGTCGAGG)
Promoter:Enhanced CMV mammalian cell promoter
Application:Stable or Transient mammalian expression
Antibiotic in E.coli:Kanamycin
Antibiotic in mammalian cell:Hygromycin
Shipping_carrier:Each tube contains lyophilized plasmid.
Storage:The lyophilized plasmid can be stored at room temperature for three months.
His Tag Info

A polyhistidine-tag is an amino acid motif in proteins that consists of at least five histidine (His) residues, often at the N- or C-terminus of the protein.

Polyhistidine-tags are often used for affinity purification of polyhistidine-tagged recombinant proteins expressed in Escherichia coli and other prokaryotic expression systems.

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Background

Cartilage Oligomeric Matrix Protein (COMP), also referred to as Thrombospondin-5, is a non-collagenous extracellular matrix (ECM) protein and belongs to the subgroup B of the thrombospondin protein family. This protein is expressed primarily in cartilage, ligament, and tendon, and binds to other ECM proteins such as collagen I, II and IX with high affinities depending on the divalent cations Zn2+ or Ni2+. COMP is a secreted glycoprotein that is important for growth plate organization and function. It is suggested to play a role in cell growth and development, and recent studies have revealed the possible mechanism that it protects cells against death by elevating members of the IAP (inhibitor of apoptosis protein) family of survival proteins. Mutations in COMP cause two skeletal dysplasias, pseudoachondroplasia (PSACH) and multiple epiphyseal dysplasia (EDM1), and up-regulated expression of COMP are observed in rheumatoid arthritis and certain carcinomas.

References
  • Posey KL, et al. (2004) Role of TSP-5/COMP in pseudoachondroplasia. Int J Biochem Cell Biol. 36(6): 1005-12.
  • Chen FH, et al. (2005) Interaction of cartilage oligomeric matrix protein/thrombospondin 5 with aggrecan. J Biol Chem. 282(34): 24591-8.
  • Posey KL, et al. (2008) The role of cartilage oligomeric matrix protein (COMP) in skeletal disease. Curr Drug Targets. 9(10): 869-77.
  • Tan K, et al. (2009) The crystal structure of the signature domain of cartilage oligomeric matrix protein: implications for collagen, glycosaminoglycan and integrin binding. FASEB J. 23(8): 2490-501.
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