Description : |
Human KGF-1 also known as Fibroblast growth factor 7 (FGF-7), is encoded by the FGF7 gene. KGF-1 only binds to the b splice form of the tyrosine kinase receptor, FGFR2b/KGFR. Affinity between KGF-1 and its receptor can be increased by heparin or heparan sulfate proteoglycan. FGF-10, also called keratinocyte growth factor 2 (KGF-2), shares 51 % amino acid sequence identity and similar function to KGF-1, but uses an additional receptor, FGFR2c. KGF-1 plays an important role in the regulation of embryonic development, cell proliferation and cell differentiation. KGF-1 actives on keratinocytes, and exhibits mitogenic activity for epidermal cells, but essentially no activity for fibroblasts. KGF-1 has species crossactive, human KGF-1 shares 96 % amino acid sequence identity with murine, and 92 % with rat. |
Source : |
E.coli |
Species : |
Human |
Form : |
Lyophilized from a 0.2μm filtered solution in 20mM PB, pH 7.4, 500 mM NaCl, 0.02 % Tween-20. |
Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by thymidine uptake assay using FGF-receptors transfected BaF3 cells is less than 10 ng/ml, corresponding to a specific activity of > 1.0 × 10⁵ IU/mg. |
Molecular Mass : |
Approximately 18.9 kDa, a single, non-glycosylated polypeptide chain containing 163 amino acids. |
Protein length : |
163 |
AA Sequence : |
CNDMTPEQMATNVNCSSPERHTRSY DYMEGGDIRVRRLFCRTQWYLRIDK RGKVKGTQEMKNNYNIMEIRTVAVG IVAIKGVESEFYLAMNKEGKLYAKK ECNEDCNFKELILENHYNTYASAKW THNGGEMFVALNQKGIPVRGKKTKK EQKTAHFLPMAIT |
Endotoxin : |
Less than 0.01 EU/µg of rHuKGF-1/FGF-7 GMP as determined by LAL method. |
Purity : |
>98% by SDS-PAGE and HPLC analysis. |
Storage : |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.12 months from date of receipt, -20 to -70 centigrade as supplied.1 month, 2 to 8 centigrade under sterile conditions after reconstitution.3 months, -20 to -70 centigrade under sterile conditions after reconstitution. |
Reconstitution : |
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 centigrade. Further dilutions should be made in appropriate buffered solutions. |