Abbreviation
Recombinant Human IGF1 protein, partial (Active)
Purity
>97% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using serum free human MCF-7 cells is less than 2 ng/ml, corresponding to a specific activity of >5.0x105 IU/mg.
Alternative Names
IBP1; IGF I; IGF IA; IGF IB; IGF-I; Igf1; IGF1_HUMAN; IGF1A; IGFI; IGFIA; Insulin like growth factor 1 (somatomedin C) ; Insulin like growth factor 1; 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
Species
Homo sapiens (Human)
Expression Region
52-118aa
Target Protein Sequence
TLCGAELVDA LQFVCGDRGF YFNKPTGYGS SSRRAPQTGI VDECCFRSCD LRRLEMYCAP LKPAKSA
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Tag Info
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
0.2 μm filtered PBS, pH 7.4 ,lyophilized
Lead Time
5-10 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
IGF1 signaling drives cell proliferation, survival, and metabolic regulation, making it a critical target in cancer biology and regenerative research. This tag-free recombinant human IGF-1 encompasses the mature form (residues 52–118) and demonstrates potent mitogenic activity, with an ED50 below 2 ng/mL in serum-free MCF-7 proliferation assays, corresponding to a specific activity exceeding 5.0 × 10⁵ IU/mg — providing reliable, quantifiable dose-response performance for cell proliferation and survival assays, IGF-1R binding and competition studies via ELISA or SPR, and in vivo tumor biology models. Because IGF-1 lacks native glycosylation, E. coli expression yields a correctly folded protein without the batch-to-batch variability that mammalian systems can introduce. Purity above 97% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for serum-free cell culture work and sensitive receptor-ligand interaction experiments.