• NatureRecombinant
  • SourceEscherichia coli
  • Amino Acid Sequence
    • SpeciesHuman
    • Molecular weight7 kDa
    • Amino acids4 to 70
    • Additional sequence informationThe sequence of the first five N-terminal amino acids was determined and was found to be Thr-Leu-Cys-Gly-Ala.


Our Abpromise guarantee covers the use of ab73457 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Biological activity

    The ED50, calculated by the dose-dependant proliferation of murine BALB\C 3T3 cells (measured by 3H-thymidine uptake) is < 1ng/ml, corresponding to a specific activity of 1,000,000units/mg. For most in-vitro applications, ab73457 exerts its biological activity in the concentration range of 0.2-20 ng/ml, corresponding to a specific activity of 50,000-5,000,000units/mg.

  • Applications

    Functional Studies

  • Purity> 95 % SDS-PAGE.
    This protein was purified by proprietary chromatographic techniques. Purity: Greater than 95.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
  • FormLyophilised
  • Additional notesFor long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot. Store at -80°C. Avoid freeze / thaw cycle.

    Preservative: None
    Constituents: 50mM Acetic acid

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • ReconstitutionReconstitute in 100mM Acetic acid at not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

General Info

  • Alternative names
    • IBP1
    • IGF I
    • IGF IA
    • IGF IB
    • IGF-I
    • Igf1
    • IGF1_HUMAN
    • IGF1A
    • IGFI
    • IGFIA
    • Insulin like growth factor 1
    • Insulin like growth factor 1 (somatomedin C)
    • Insulin like growth factor IA
    • Insulin like growth factor IB
    • Insulin-like growth factor I
    • Mechano growth factor
    • MGF
    • OTTHUMP00000195080
    • OTTHUMP00000195081
    • OTTHUMP00000195082
    • OTTHUMP00000195083
    • OTTHUMP00000195084
    • Somatomedia C
    • Somatomedin C
    • Somatomedin-C
    see all
  • FunctionThe insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in rat bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake.
  • Involvement in diseaseDefects in IGF1 are the cause of insulin-like growth factor I deficiency (IGF1 deficiency) [MIM:608747]. IGF1 deficiency is an autosomal recessive disorder characterized by growth retardation, sensorineural deafness and mental retardation.
  • Sequence similaritiesBelongs to the insulin family.
  • Cellular localizationSecreted.
  • Information by UniProt

References for Recombinant human IGF1 protein (ab73457)

ab73457 has not yet been referenced specifically in any publications.

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