RecombinantIGF-I,Human

SKU: orb1494839

Description

Insulin-like growth factor I (IGF-I) also known as Somatamedin C is a hormone similar in molecular structure to insulin. Human IGF-I has two isoforms (IGF-IA and IGF-IB) which is differentially expressed by various tissues. Mature human IGF-I respectively shares 94% and 96% aa sequence identity with mouse and rat IGF-I. Both IGF-I and IGF-II (another ligand of IGF) can signal through the IGF-I receptor (IGFIR), but IGF-II can alone bind the IGF-II receptor (IGFIIR/ Mannose-6-phosphate receptor). IGF-I plays an important role in childhood growth and continues to have anabolic effects in adults. Recombinant human Insulin-like growth factor I (rhIGF-I) produced in E.coli is a single non-glycosylated polypeptide chain containing 70 amino acids. A fully biologically active molecule, rhIGF-I has a molecular mass of 7.7 kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.

Images & Validation

• Application Notes:
  Reconstituted in ddH2O at 100 μg/ml.

Key Properties

• Source: Escherichia coli.
• Biological Activity: ED50 2.0× 10ˆ5 units/mg.
• Molecular Weight: 7.7 kDa, observed by reducing SDS-PAGE.
• Protein Sequence: GPETLCGAEL VDALQFVCGD RGFYFNKPTG YGSSSRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPAKSA
• Purification: > 95% by SDS-PAGE and HPLC analyses.
• Purity: > 95% by SDS-PAGE and HPLC analyses.
• Endotoxins: < 0.2 EU/μg, determined by LAL method.

Storage & Handling

• Storage: Lyophilized recombinant human Insulin-like growth factor I (rhIGF-I) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhIGF-I should be stable up to 2 weeks at 4°C or up to 3 months at -20°C.
• Form/Appearance: Lyophilized after extensive dialysis against PBS.
• Buffer/Preservatives: Lyophilized after extensive dialysis against PBS.
• Disclaimer: For research use only

Alternative Names

Somatomedin C, IGF-I, IGFI, IGF1, IGF-IA, Mechano growth factor, MGF