膜杰作
Star Staining
分子别名（Synonym）
CD117,SCFR,c-Kit,KIT
表达区间及表达系统（Source）
Human CD117, Fc Tag (CD7-H5255) is expressed from human 293 cells (HEK293). It contains AA Gln 26 - Thr 516 (Accession # P10721-2).
Predicted N-terminus: Gln 26
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a human IgG1 Fc tag at the C-terminus
The protein has a calculated MW of 81.9 kDa. The protein migrates as 95-120 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>95% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Human CD117, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS
The purity of Human CD117, Fc Tag (Cat. No. CD7-H5255) is more than 85% and the molecular weight of this protein is around 185-225 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized ActiveMax® Human SCF, Tag Free at 2 μg/mL (100 μL/well) can bind Human CD117, Fc Tag (Cat. No. CD7-H5255) with a linear range of 0.4-2 ng/mL (QC tested).
Protocol
Immobilized Human CD117, Fc Tag (Cat. No. CD7-H5255) at 2 μg/mL (100 μL/well) can bind Mouse SCF, His Tag (Cat. No. SCF-M5228) with a linear range of 0.05-1 ng/mL (Routinely tested).
Protocol
背景（Background）
Mast/stem cell growth factor receptor Kit (c-Kit), a member of the protein kinase superfamily, Tyr protein kinase family and CSF-1/PDGF receptor subfamily, is also known as piebald trait protein (PBT), p145 c-kit, tyrosine-protein kinase Kit and CD117,which contains five Ig-like C2-type (immunoglobulin-like) domains and one protein kinase domain. CD117 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, CD117 can activate several signaling pathways. Furthermore, Activated KIT promotes phosphorylation of the protein phosphatases PTPN6/SHP-1 and PTPRU, and of the transcription factors STAT1, STAT3, STAT5A and STAT5B.
