RecombinantFGF-4, Human

• Description:

  Fibroblast Growth Factor-4 (FGF-4) also known as K-FGF is a heparin-binding growth factor of the FGF family.It was identified by its oncogenic transforming activity. FGF-4 and FGF-3 are located closely on chromosome 11. FGF-4 and its receptors (FGF R1c, 2c, 3c and 4) play an important role in the regulation of embryonic development, cell proliferation, and cell differentiation. FGF-4 is required for normal limb and cardiac valve development during embryogenesis.Recombinant human Fibroblast Growth Factor-4 (rhFGF-4) produced in E.coli is a single non-glycosylated polypeptide chain containing 177 amino acids. A fully biologically active molecule obtained by proprietary chromatographic techniques at GenScript, rhFGF-4 has a molecular mass of 19.4kDa as analyzed by reducing SDS-PAGE.

• Endotoxin:

  <0.2 EU/μg, determined by LAL method.

• Purity:

  > 95% by SDS-PAGE and HPLC analyses.

• Bioactivity:

  ED50<0.5ng/ml, measured in a cell proliferation assay using 3T3 cells, corresponding to a specific activity of >2.0x 10ˆ6 units/mg.

• Reconstitution:

  Reconstituted in ddH2O at 100 μg/ml.

• Molecular Weight:

  19.4kDa, observed by reducing SDS-PAGE.

• Storage Conditions:

  Lyophilized recombinant human Fibroblast Growth Factor-4 (rhFGF-4) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhFGF-4 should be stable up to 2 weeks at 4°C or up to 3 months at -20°C.

• Appearance:

  Sterile Filtered White lyophilized (freeze-dried) powder.

• Formulation:

  Lyophilized after extensive dialysis against 50mM HEPES, 750mM NaCl, pH7.5.

• Host or Source:

  Escherichia coli.

• Recommended Usage:

  This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.

• CAS Number:

  9000-83-3

• AA Sequence:

  MAPTAPNGT LEAELERRWE SLVALSLARL PVAAQPKEAA VQSGAGDYLL GIKRLRRLYC NVGIGFHLQA LPDGRIGGAH ADTRDSLLEL SPVERGVVSI FGVASRFFVA MSSKGKLYGS PFFTDECTFK EILLPNNYNA YESYKYPGMF IALSKNGKTK KGNRVSPTMK VTHFLPRL