Human DDR2/CD167b (Fc Tag) recombinant protein

Human DDR2/CD167b (Fc Tag) recombinant protein

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• Material Safety Data Sheets (MSDS)

Discoidin domain receptor 2 (DDR2) or CD167b (cluster of differentiation 167b) is a kind of protein tyrosine kinases associated with cell proliferation and tumor metastasis, and collagen, identified as a ligand for DDR2, up-regulates matrix metallloproteinase 1 (MMP-1) and MMP-2 expression in cellular matrix. DDR2/CD167b was found to recognise the triple-helical region of collagen X as well as the NC1 domain. Binding to the collagenous region was dependent on the triple-helical conformation. DDR2/CD167b autophosphorylation was induced by the collagen X triple-helical region but not the NC1 domain, indicating that the triple-helical region of collagen X contains a specific DDR2 binding site that is capable of receptor activation. DDR2/CD167b is induced during stellate cell activation and implicate the phosphorylated receptor as a mediator of MMP-2 release and growth stimulation in response to type I collagen. Moreover, type I collagen-dependent upregulation of DDR2/CD167b expression establishes a positive feedback loop in activated stellate cells, leading to further proliferation and enhanced invasive activity.

TYRO10; NTRKR3; RP11-572K18.1; AW495251; TKT; MIG20A; DDR2; CD167B

Q16832

Human Cells

A DNA sequence encoding the extracellular domain (Met 1-Arg 399) of human DDR2 precursor (NP_001014796.1) was expressed with the fused Fc region of human IgG1 at the C-terminus.

Human

The recombinant human DDR2/Fc is a disulfide-linked homodimeric protein. The reduced monomer consists of 616 amino acids and has a calculated molecular mass of 69.4 kDa. Due to glycosylation, rhDDR2/Fc monomer migrates as an approximately 87 kDa protein in SDS-PAGE under reducing conditions.

> 95 % as determined by SDS-PAGE

Measured by its binding ability in a functional ELISA. Immobilized Rat tail Collagen I at 10 μg/ml can bind recombinant human DDR2-Fc Chimera with a linear range of 2.5-80 ng/ml. Scatchard analysis showed the affinity constant (Kd) of recombinant human DDR2-Fc Chimera bound to rat tail collagen I was 6.8 nM.