英文全名
Recombinant Human Fms-related Tyrosine Kinase 3 Ligand GMP (rHuFlt-3Ligand)
英文别名
Flt3L, SL Cytokine
蛋白结构
氨基酸序列
TQDCSFQHSP ISSDFAVKIR ELSDYLLQDY PVTVASNLQD EELCGGLWRL VLAQRWMERL KTVAGSKMQG LLERVNTEIH FVTKCAFQPP PSCLRFVQTN ISRLLQETSE QLVALKPWIT RQNFSRCLEL QCQPDSSTLP PPWSPRPLEA TAPTA
Accession
Gene ID
产品英文概述
Flt3-ligand (FL) is a recently identified hematopoietic cytokine whose activities are mediated by binding to the transmembrane glycoprotein Flt3. Flt3 was first discovered as a member of the class III subfamily of receptor tyrosine kinases (RTK) whose expression among hematopoietic cells was found to be restricted to highly enriched stem/progenitor cell populations. Additionally, class III RTKs include the receptors from SCF, M-CSF and PDGF. Not surprisingly, Flt3-ligand is also structurally related to M-CSF and SCF. All three cytokines have been shown to exist both as type I transmembrane proteins and as soluble proteins. The predominant human FL isoform is a transmembrane protein that can undergo proteolytic cleavage to generate a soluble form of the protein. An alternatively-spliced FL mRNA, encoding a soluble form of the human FL, has also been identified. FL is widely expressed in various human and mouse tissues. At the amino acid sequence level, human and mouse FL are approximately 72 % identical and the two proteins exhibit cross-species activity. FL has been shown to synergize with a wide variety of hematopoietic cytokines to stimulate the growth and differentiation of early hematopoietic progenitors.
来源
Escherichia coli.
分子量
Approximately 17.6 kDa, a single non-glycosylated polypeptide chain containing 155 amino acids.
生物活性
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human AML5 cells is less than 1.0 ng/ml, corresponding to a specific activity of > 1.0 × 106 IU/mg.
外观
Sterile filtered white lyophilized (freeze-dried) powder.
配方
Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.0.
内毒素
Less than 0.01 EU/ug of rHuFlt3-Ligand GMP as determined by LAL method.
溶解说明
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
储存条件
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.A minimum of 12 months when stored at ≤ -20 °C as supplied. Refer to lot specific COA for the Use by Date.1 month, 2 to 8 °C under sterile conditions after reconstitution.3 months, -20 to -70 °C under sterile conditions after reconstitution.
参考资料
1. Hacein-Bey S, Basile GD, Lemerle J, et al. 1998. Blood, 92: 4090-7.2. Peters M, Solem F, Goldschmidt J, et al. 2001. Exp Hematol, 29: 146-55.3. Beq S, Fontanet A, Theze J, et al. 2004. AIDS, 18: 2089-91.4. Mahadevan D, Choi J, Cooke L, et al. 2009. Hum Genomics Proteomics, 2009: 453634.
纯度
> 98 % by SDS-PAGE and HPLC analyses.
SDS-PAGE电泳
包装规格
5ug/100ug
安全数据表下载 (SDS)
技术参数表下载 (TDS)
品牌链接
Recombinant Human Fms-related Tyrosine Kinase 3 Ligand GMP是ChemWhat品牌授权产品并通过沃尔森销售，下面是ChemWhat上的该产品链接 Recombinant Human Fms-related Tyrosine Kinase 3 Ligand GMP (rHuFlt-3Ligand)
