KIT Gene Summary [Human]

This gene encodes a receptor tyrosine kinase. This gene was initially identified as a homolog of the feline sarcoma viral oncogene v-kit and is often referred to as proto-oncogene c-Kit. The canonical form of this glycosylated transmembrane protein has an N-terminal extracellular region with five immunoglobulin-like domains, a transmembrane region, and an intracellular tyrosine kinase domain at the C-terminus. Upon activation by its cytokine ligand, stem cell factor (SCF), this protein phosphorylates multiple intracellular proteins that play a role in in the proliferation, differentiation, migration and apoptosis of many cell types and thereby plays an important role in hematopoiesis, stem cell maintenance, gametogenesis, melanogenesis, and in mast cell development, migration and function. This protein can be a membrane-bound or soluble protein. Mutations in this gene are associated with gastrointestinal stromal tumors, mast cell disease, acute myelogenous leukemia, and piebaldism. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2020]

Details

Type
Protein Coding
Official Symbol
KIT
Official Name
KIT proto-oncogene, receptor tyrosine kinase [Source:HGNC Symbol;Acc:HGNC:6342]
Ensembl ID
ENSG00000157404
Bio databases IDs NCBI: 3815 Ensembl: ENSG00000157404
Aliases KIT proto-oncogene, receptor tyrosine kinase, mast/stem cell growth factor receptor Kit
Synonyms Ack2, Bs, CD117, c-KIT, C-Kit1, c-Kit Gnnk+, Fdc, Gsfsco1, Gsfsco5, Gsfsow3, KIT proto-oncogene receptor tyrosine kinase, KIT proto-oncogene, receptor tyrosine kinase, MASTC, PBT, SCFR, SCO1, SCO5, SCR, SOW3, Ssm, white-spotted
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human KIT often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • PI3K binding domain
  • phosphotransferase domain
  • cytokine binding
  • protein-tyrosine kinase
  • Protein kinase domain
  • kinase insertion domain
  • activation loop
  • ATP-binding pocket
  • cytoplasmic domain
  • ligand-binding domain
  • stem cell factor receptor
  • Immunoglobulin like
  • intracellular domain
  • immunoglobulin-like protein domain
  • tail domain
  • membrane-proximal domain
  • Tyrosine kinase, catalytic domain
  • transmembrane receptor
  • extracellular domain
  • Protein kinase (unclassified specificity)
  • dimerization domain
  • protease binding
  • catalytic domain
  • Protein tyrosine and serine/threonine kinase
  • SH2-domain binding
  • immunoglobulin domain
  • ectodomain
  • Immunoglobulin I-set domain
  • autophosphorylation site
  • protein binding
  • Serine/Threonine protein kinases, catalytic domain
  • kinase domain
  • Protein Kinases, catalytic domain
  • transmembrane receptor protein tyrosine kinase
  • PLC gamma1 protein binding domain
  • transmembrane domain
  • tyrosine kinase domain
  • protein homodimerization

Pathways

Biological processes and signaling networks where the KIT gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • epithelial neoplasia
  • epithelial cancer
  • cancer
  • neoplasia
  • rheumatoid arthritis
  • systemic lupus erythematosus
  • schizophrenia
  • COVID-19
  • hyperplasia
  • airway hyperresponsiveness
regulated by
  • PI3K (complex)
  • ESR2
  • tanespimycin
  • CCL2
  • KITLG
  • SU11655
  • RBL-2H3 cells
  • MIR29B
  • DNMT1
  • valproic acid
role in cell
  • differentiation
  • binding in
  • number
  • expression in
  • quantity
  • phosphorylation in
  • proliferation
  • apoptosis
  • activation
  • growth

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • membrane fraction
  • fibrillar center
  • Cytoplasm
  • cell surface
  • Extracellular Space
  • membrane surface
  • cellular membrane
  • Nucleus
  • vesicles
  • intercellular junctions
  • cell-cell contacts
  • cytoplasmic face of plasma membrane
  • plasma membrane extracellular face
  • sperm tail
  • acrosome
  • sperm head
  • cytoplasmic droplets
  • membrane rafts
  • membrane processes
  • perikaryon
  • exosomes
  • plasma

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human KIT gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • male gonad development
  • embryonic hemopoiesis
  • protein autophosphorylation
  • visual learning
  • negative regulation of developmental process
  • negative regulation of programmed cell death
  • positive regulation of tyrosine phosphorylation of STAT protein
  • tongue development
  • mast cell degranulation
  • positive regulation of sequence-specific DNA binding transcription factor activity
  • lymphoid progenitor cell differentiation
  • hemopoietic progenitor cell differentiation
  • glycosphingolipid metabolic process
  • cell chemotaxis
  • inflammatory response
  • epithelial cell proliferation
  • digestive tract development
  • pigmentation
  • myeloid progenitor cell differentiation
  • detection of mechanical stimulus involved in sensory perception of sound
  • Kit signaling pathway
  • intracellular signal transduction
  • positive regulation of mast cell cytokine production
  • stem cell maintenance
  • germ cell programmed cell death
  • B cell differentiation
  • positive regulation of pseudopodium assembly
  • germ cell migration
  • positive regulation of JAK-STAT cascade
  • T cell differentiation
  • erythrocyte differentiation
  • immature B cell differentiation
  • hematopoietic stem cell migration
  • negative regulation of reproductive process
  • positive regulation of protein kinase B signaling cascade
  • positive regulation of cell migration
  • positive regulation of long-term neuronal synaptic plasticity
  • positive regulation of MAP kinase activity
  • regulation of cell shape
  • multicellular organismal development
  • hemopoiesis
  • positive regulation of Notch signaling pathway
  • Fc receptor signaling pathway
  • positive regulation of dendritic cell cytokine production
  • stem cell differentiation
  • mast cell proliferation
  • cytokine-mediated signaling pathway
  • somatic stem cell maintenance
  • megakaryocyte development
  • positive regulation of mast cell proliferation
  • mast cell differentiation
  • spermatid development
  • signal transduction
  • spermatogenesis
  • response to cadmium ion
  • erythropoietin-mediated signaling pathway
  • positive regulation of MAPK cascade
  • mast cell chemotaxis
  • regulation of cell proliferation
  • ovarian follicle development
  • melanocyte differentiation
  • lamellipodium assembly
  • actin cytoskeleton organization

Cellular Component

Where in the cell the gene product is active
  • extracellular space
  • cell-cell junction
  • acrosomal vesicle
  • external side of plasma membrane
  • receptor complex
  • fibrillar center
  • plasma membrane
  • internal side of plasma membrane

Molecular Function

What the gene product does at the molecular level
  • ATP binding
  • growth factor binding
  • protein tyrosine kinase activity
  • protein binding
  • protein homodimerization activity
  • metal ion binding
  • transmembrane receptor protein tyrosine kinase activity
  • stem cell factor receptor activity
  • protease binding
  • SH2 domain binding
  • cytokine binding

Gene-Specific Assays for Results You Can Trust

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