FLT3 Antibody – Rabbit Polyclonal

This gene encodes a class III receptor tyrosine kinase that regulates hematopoiesis. The receptor consists of an extracellular domain composed of five immunoglobulin-like domains, one transmembrane region, and a cytoplasmic kinase domain split into two parts by a kinase-insert domain. The receptor is activated by binding of the fms-related tyrosine kinase 3 ligand to the extracellular domain, which induces homodimer formation in the plasma membrane leading to autophosphorylation of the receptor. The activated receptor kinase subsequently phosphorylates and activates multiple cytoplasmic effector molecules in pathways involved in apoptosis, proliferation, and differentiation of hematopoietic cells in bone marrow. Mutations that result in the constitutive activation of this receptor result in acute myeloid leukemia and acute lymphoblastic leukemia. [provided by RefSeq, Jul 2008]

FLT3: a receptor tyrosine kinase of the PDGFR family that binds the FL cytokine. FLT3 -/- mice have an impaired developmental capacity of primitive hematopoietic progenitor cells of all lineages with the greatest impact on lymphopoietic precursors. Activating mutations found in one third of cases of acute myeloid leukemia (AML), as well as in acute lymphoblastic leukemia, acute promyelocytic leukemia and myelodysplastic syndrome. Inhibitors: Sutent and PKC412.

Protein type: Membrane protein, integral; Protein kinase, TK; Oncoprotein; Kinase, protein; Protein kinase, tyrosine (receptor); EC 2.7.10.1; TK group; PDGFR family

Chromosomal Location of Human Ortholog: 13q12

Cellular Component: protein complex; integral to plasma membrane; endoplasmic reticulum lumen; cytosol; nucleus; external side of plasma membrane

Molecular Function: vascular endothelial growth factor receptor activity; hematopoietin/interferon-class (D200-domain) cytokine receptor activity; protein binding; protein homodimerization activity; protein complex binding; phosphoinositide 3-kinase binding; transmembrane receptor protein tyrosine kinase activity; ATP binding; glucocorticoid receptor binding

Biological Process: negative regulation of B cell differentiation; lymphocyte proliferation; pro-B cell differentiation; organ regeneration; peptidyl-tyrosine phosphorylation; cytokine and chemokine mediated signaling pathway; protein amino acid autophosphorylation; positive regulation of phosphoinositide 3-kinase activity; response to organic nitrogen; regulation of apoptosis; positive regulation of phosphoinositide 3-kinase cascade; negative regulation of cell proliferation; positive regulation of MAP kinase activity; positive regulation of MAPKKK cascade; myeloid progenitor cell differentiation; positive regulation of tyrosine phosphorylation of STAT protein; B cell differentiation; positive regulation of cell proliferation; hemopoiesis; pro-T cell differentiation; transmembrane receptor protein tyrosine kinase signaling pathway; leukocyte homeostasis

Disease: Leukemia, Acute Lymphoblastic