Cysteine-Rich, Angiogenic Inducer 61 (CYR61) Antibody – Sheep Polyclonal

CYR61 is a secreted, cysteine-rich, heparin-binding protein encoded by a growth factor-inducible immediate-early gene. Acting as an extracellular, matrix-associated signaling molecule, CYR61 promotes the adhesion of endothelial cells through interaction with integrin and augments growth factor-induced DNA synthesis in the same cell type.[supplied by OMIM]

CYR61: Promotes cell proliferation, chemotaxis, angiogenesis and cell adhesion. Appears to play a role in wound healing by up- regulating, in skin fibroblasts, the expression of a number of genes involved in angiogenesis, inflammation and matrix remodeling including VEGA-A, VEGA-C, MMP1, MMP3, TIMP1, uPA, PAI-1 and integrins alpha-3 and alpha-5. CYR61-mediated gene regulation is dependent on heparin-binding. Down-regulates the expression of alpha-1 and alpha-2 subunits of collagen type-1. Promotes cell adhesion and adhesive signaling through integrin alpha-6/beta-1, cell migration through integrin alpha-v/beta-5 and cell proliferation through integrin alpha-v/beta-3. Belongs to the CCN family.

Protein type: Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 1p22.3

Cellular Component: extracellular matrix; proteinaceous extracellular matrix

Molecular Function: heparin binding; integrin binding; insulin-like growth factor binding; extracellular matrix binding

Biological Process: anatomical structure morphogenesis; extracellular matrix organization and biogenesis; positive regulation of caspase activity; chemotaxis; intussusceptive angiogenesis; osteoblast differentiation; positive regulation of osteoblast differentiation; cell proliferation; cell-cell signaling; positive regulation of protein kinase activity; positive regulation of osteoblast proliferation; positive regulation of transcription from RNA polymerase II promoter; positive regulation of protein amino acid phosphorylation; regulation of cell growth; cell adhesion; positive regulation of BMP signaling pathway; positive regulation of cell migration; negative regulation of apoptosis