RecombinantPDGF-BB, Rat

• Description:

  Platelet-Derived Growth Factor-BB (PDGF-BB) is one of five dimers (PDGF-AA, AB, BB, CC, and DD) formed by 4 different PDGF subunits. In vivo, PDGF-BB is mainly produced in heart and placenta, and predominantly expressed by osteoblasts, fibroblasts, smooth muscle cells, and glial cells. An inactive precursor of PDGF-BB is produced in the endoplasmic reticulum and then activated by a proprotein convertase after secretion. PDGF-BB functions in a paracrine manner and promotes organogenesis, human skeletal development, and wound healing. PDGF-BB also promotes angiogenesis, particularly in the presence of Fibroblast Growth Factor basic. Therefore, PDGF-BB and its related pathways are potential pharmacological targets.Recombinant rat Platelet-Derived Growth Factor-BB (rrPDGF-BB) produced in E.coli is a disulfide-linked homodimer containing two non-glycosylated polypeptide chains of 110 amino acids each. A fully biologically active molecule, rrPDGF-BB has a molecular mass of 24.6 kDa analyzed by non-reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.

• Endotoxin:

  < 0.2 EU/μg, determined by LAL method.

• Purity:

  > 95% by SDS-PAGE analysis.

• Bioactivity:

  ED50 < 2 ng/mL, measured by a cell proliferation assay using 3T3 Cells, corresponding to a specific activity of > 5 x 10ˆ5 units/mg.

• Reconstitution:

  Reconstituted in 20 mM acetic acid at 100 μg/mL.

• Molecular Weight:

  24.6 kDa, observed by non-reducing SDS-PAGE.

• Storage Conditions:

  Lyophilized recombinant rat Platelet-Derived Growth Factor-BB (rrPDGF-BB) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rrPDGF-BB remains 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 20 mM acetic acid.

• 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:

  MSLGSLAAA EPAVIAECKT RTEVFQISRN LIDRTNANFL VWPPCVEVQR CSGCCNNRNV QCRASQVQMR PVQVRKIEIV RKKPVFKKAT VTLEDHLACK CETVVTPRPV T