Notch-1 (NOTCH1) Antibody – Mouse Monoclonal

This gene encodes a member of the Notch family. Members of this Type 1 transmembrane protein family share structural characteristics including an extracellular domain consisting of multiple epidermal growth factor-like (EGF) repeats, and an intracellular domain consisting of multiple, different domain types. Notch family members play a role in a variety of developmental processes by controlling cell fate decisions. The Notch signaling network is an evolutionarily conserved intercellular signaling pathway which regulates interactions between physically adjacent cells. In Drosophilia, notch interaction with its cell-bound ligands (delta, serrate) establishes an intercellular signaling pathway that plays a key role in development. Homologues of the notch-ligands have also been identified in human, but precise interactions between these ligands and the human notch homologues remain to be determined. This protein is cleaved in the trans-Golgi network, and presented on the cell surface as a heterodimer. This protein functions as a receptor for membrane bound ligands, and may play multiple roles during development. [provided by RefSeq]

Notch 1: Functions as a receptor for membrane-bound ligands Jagged1, Jagged2 and Delta1 to regulate cell-fate determination. Upon ligand activation through the released notch intracellular domain (NICD) it forms a transcriptional activator complex with RBPJ/RBPSUH and activates genes of the enhancer of split locus. Affects the implementation of differentiation, proliferation and apoptotic programs. May be important for normal lymphocyte function. In altered form, may contribute to transformation or progression in some T-cell neoplasms. Involved in the maturation of both CD4+ and CD8+ cells in the thymus. May be important for follicular differentiation and possibly cell fate selection within the follicle. During cerebellar development, may function as a receptor for neuronal DNER and may be involved in the differentiation of Bergmann glia. Represses neuronal and myogenic differentiation. May enhance HIF1A function by sequestering HIF1AN away from HIF1A. Heterodimer of a C-terminal fragment N(TM) and an N- terminal fragment N(EC) which are probably linked by disulfide bonds. Interacts with DNER, DTX1, DTX2 and RBPJ/RBPSUH. Also interacts with MAML1, MAML2 and MAML3 which act as transcriptional coactivators for NOTCH1. The activated membrane-bound form interacts with AAK1 which promotes NOTCH1 stabilization. Forms a trimeric complex with FBXW7 and SGK1. Interacts with HIF1AN. HIF1AN negatively regulates the function of notch intracellular domain (NICD), accelerating myogenic differentiation. In fetal tissues most abundant in spleen, brain stem and lung. Also present in most adult tissues where it is found mainly in lymphoid tissues. Belongs to the NOTCH family.

Protein type: Receptor, misc.; Membrane protein, integral; Transcription factor; Oncoprotein; Motility/polarity/chemotaxis

Chromosomal Location of Human Ortholog: 9q34.3

Cellular Component: nucleoplasm; Golgi membrane; endoplasmic reticulum membrane; cell surface; integral to membrane; plasma membrane; acrosome; extracellular region; cytosol; nucleus; receptor complex

Molecular Function: enzyme inhibitor activity; protein binding; enzyme binding; chromatin DNA binding; sequence-specific DNA binding; receptor activity; calcium ion binding; transcription factor activity

Biological Process: neural tube development; negative regulation of calcium ion-dependent exocytosis; positive regulation of apoptosis; heart development; positive regulation of transcription, DNA-dependent; positive regulation of JAK-STAT cascade; response to lipopolysaccharide; negative regulation of BMP signaling pathway; cell differentiation in spinal cord; response to corticosteroid stimulus; compartment specification; positive regulation of endothelial cell differentiation; negative regulation of ossification; somatic stem cell division; oligodendrocyte differentiation; negative regulation of osteoblast differentiation; positive regulation of cardiac muscle cell proliferation; positive regulation of keratinocyte differentiation; positive regulation of astrocyte differentiation; negative regulation of photoreceptor cell differentiation; positive regulation of neuroblast proliferation; organ regeneration; Notch receptor processing; keratinocyte differentiation; branching morphogenesis of a tube; response to muramyl dipeptide; positive regulation of transcription from RNA polymerase II promoter; determination of left/right symmetry; negative regulation of transcription, DNA-dependent; foregut morphogenesis; positive regulation of epithelial cell proliferation; endoderm development; cell fate specification; cardiac muscle cell proliferation; negative regulation of transcription from RNA polymerase II promoter; embryonic hindlimb morphogenesis; negative regulation of neurogenesis; negative regulation of cell proliferation; astrocyte differentiation; regulation of transcription, DNA-dependent; tissue regeneration; forebrain development; positive regulation of cell proliferation; cardiac muscle morphogensis; heart looping; regulation of somitogenesis; positive regulation of BMP signaling pathway; mesenchymal cell development; transcription initiation from RNA polymerase II promoter; Notch signaling pathway; hair follicle morphogenesis; in utero embryonic development; lumen formation; liver development; humoral immune response; activation of Notch receptor target transcription factor; negative regulation of oligodendrocyte differentiation; inflammatory response to antigenic stimulus; axonogenesis; negative regulation of catalytic activity; epithelial to mesenchymal transition; spermatogenesis; gene expression; immune response; sprouting angiogenesis; auditory receptor cell fate commitment; negative regulation of myoblast differentiation; positive regulation of cell migration; lung development

Disease: Adams-oliver Syndrome 5; Aortic Valve Disease 1