|Reactivity||Human, Mouse, Rat|
|Calculated MW||109865 Da|
|Other Names||Mast/stem cell growth factor receptor Kit, SCFR, Piebald trait protein, PBT, Proto-oncogene c-Kit, Tyrosine-protein kinase Kit, p145 c-kit, v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog, CD117, KIT, SCFR|
|Target/Specificity||The antibody was affinity-purified from rabbit antiserum using epitope-specific phosphopeptide column, and the antibody against non-phosphopeptide was removed using non-phosphopeptide column corresponding to the phosphorylation site.|
|Format||affinity Purified IgG, in PBS, 0.02% sodium azide and 50% glycerol.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Phospho-C-Kit-Y721 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Tyrosine-protein kinase that acts as cell-surface receptor for the cytokine KITLG/SCF and plays an essential role in the regulation of cell survival and proliferation, hematopoiesis, stem cell maintenance, gametogenesis, mast cell development, migration and function, and in melanogenesis. In response to KITLG/SCF binding, KIT can activate several signaling pathways. Phosphorylates PIK3R1, PLCG1, SH2B2/APS and CBL. Activates the AKT1 signaling pathway by phosphorylation of PIK3R1, the regulatory subunit of phosphatidylinositol 3-kinase. Activated KIT also transmits signals via GRB2 and activation of RAS, RAF1 and the MAP kinases MAPK1/ERK2 and/or MAPK3/ERK1. Promotes activation of STAT family members STAT1, STAT3, STAT5A and STAT5B. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate. KIT signaling is modulated by protein phosphatases, and by rapid internalization and degradation of the receptor. Activated KIT promotes phosphorylation of the protein phosphatases PTPN6/SHP-1 and PTPRU, and of the transcription factors STAT1, STAT3, STAT5A and STAT5B. Promotes phosphorylation of PIK3R1, CBL, CRK (isoform Crk-II), LYN, MAPK1/ERK2 and/or MAPK3/ERK1, PLCG1, SRC and SHC1.|
|Cellular Location||Isoform 1: Cell membrane; Single-pass type I membrane protein Isoform 3: Cytoplasm. Note=Detected in the cytoplasm of spermatozoa, especially in the equatorial and subacrosomal region of the sperm head|
|Tissue Location||Isoform 1 and isoform 2 are detected in spermatogonia and Leydig cells. Isoform 3 is detected in round spermatids, elongating spermatids and spermatozoa (at protein level). Widely expressed. Detected in the hematopoietic system, the gastrointestinal system, in melanocytes and in germ cells|
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Provided below are standard protocols that you may find useful for product applications.
This gene encodes the human homolog of the proto-oncogene c-kit. C-kit was first identified as the cellular homolog of the feline sarcoma viral oncogene v-kit. This protein is a type 3 transmembrane receptor for MGF (mast cell growth factor, also known as stem cell factor). Mutations in this gene are associated with gastrointestinal stromal tumors, mast cell disease, acute myelogenous lukemia, and piebaldism. Multiple transcript variants encoding different isoforms have been found for this gene.
Efficacy evaluation of imatinib treatment in patients with gastrointestinal stromal tumors: a meta-analysis. Chen P, et al. World J Gastroenterol, 2010 Sep 7. PMID 20806443.
KIT polymorphisms and mutations determine responses of neoplastic mast cells to bafetinib (INNO-406). Peter B, et al. Exp Hematol, 2010 Sep. PMID 20685234.
Prognostic relevance of KIT and PDGFRA mutations in gastrointestinal stromal tumors. Braggio E, et al. Anticancer Res, 2010 Jun. PMID 20651400.
Promoter polymorphisms and methylation of E-cadherin (CDH1) and KIT in gastric cancer patients from northern Brazil. Borges Bdo N, et al. Anticancer Res, 2010 Jun. PMID 20651373.
Expression of stem cell factor/c-kit signaling pathway components in diabetic fibrovascular epiretinal membranes. Abu El-Asrar AM, et al. Mol Vis, 2010 Jun 15. PMID 20596251.
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