Description_x000D_ General description_x000D_ CSF1R (colony stimulating factor 1 receptor) is a member of the platelet-derived growth factor (PDGF) family of proteins and is a type III RTK (receptor tyrosine kinase). CSF1R is composed of five immunoglobulin (Ig)-like domains, a transmembrane region, a juxtamembrane domain and kinase insert domain (KID) intersecting the kinase domain._x000D_ The antibody pair provided in this kit recognizes human Macrophage Colony-stimulating Factor 1 Receptor._x000D_ Application_x000D_ For research use only. Not for use in diagnostic procedures._x000D_ Please refer to the attached General ELISA KIT Procedure (sandwich, competitive & Indirect ELISA)_x000D_ Biochem/physiol Actions_x000D_ CSF1R (colony stimulating factor 1 receptor) acts as a receptor for CSF1 and regulates monocyte and macrophage functioning. The protein and its ligand are linked to poor prognosis in patients with solid tumors and in patients with female reproductive cancers. In breast cancers, with decreased claudin levels, this protein regulates the switch between proliferative and invasive state of the tumor, acting downstream of TGFβ (tumor growth factor β). Haploinsufficiency in this receptor might lead to aberration of microglial function, which might be a contributor to the pathogenesis of hereditary diffuse leukoencephalopathy with spheroids (HDLS).