Recombinant Human IGF-I/IGF-1 Protein

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SDS-Page: Human IGF-I Protein [NBP2-35000]

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Func, PAGE, Bioactivity
Format
Carrier-Free
Concentration
LYOPH

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Recombinant Human IGF-I/IGF-1 Protein Summary

Description
A single, non-glycosylated biologically active polypeptide chain corresponding to 70 residues of IGF1.

Source: E. coli

Amino Acid Sequence: GPETLCGAEL VDALQFVCGD RGFYFNKPTG YGSSSRRAPQ TGIVDECCFR SCDLRRLEMY CAPLKPAKSA

Preparation
Method
Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in E. coli, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
IGF1 Protein is 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 > 5.0 x 10^5 IU/mg.
Source
E. coli
Protein/Peptide Type
Recombinant Protein
Gene
IGF1
Purity
> 97 % pure by SDS-PAGE and HPLC
Endotoxin Note
Less than 0.01 EU/ug of endotoxin as determined by LAL method.

Applications/Dilutions

Theoretical MW
7.6 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Publications
Read Publication using NBP2-35000.

Packaging, Storage & Formulations

Storage
Store at -20C. Avoid freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.0.
Concentration
LYOPH
Purity
> 97 % pure by SDS-PAGE and HPLC
Reconstitution Instructions
Recommended to centrifuge prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/mL. Apportion stock solutions into working aliquots and store at <-20C.

Notes

This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Recombinant Human IGF-I/IGF-1 Protein

  • IBP1
  • IGF1
  • IGF-1
  • IGF1A
  • IGFI
  • IGF-I
  • IGF-IA
  • IGF-IB
  • insulin-like growth factor 1 (somatomedin C)
  • insulin-like growth factor 1
  • insulin-like growth factor I
  • insulin-like growth factor IA
  • insulin-like growth factor IB
  • Mechano growth factor
  • MGF
  • Somatomedin A
  • Somatomedin C
  • somatomedin-C

Background

Insulin-like Growth Factor I (IGF-I), also known as Somatomedin C, is the dominant effector of Growth Hormone (GH). IGF-I regulates glucose, fatty acid, and protein metabolism, steroid hormone activity, cartilage and bone metabolism, muscle regeneration, tumor progression, and cellular differentiation and migration. IGF-I effects are mediated primarily by IGF-I R, and its bioavailability is regulated by IGF binding proteins (IGFBPs). Mature human IGF-I shares about 95% aa sequence identity with the mouse and rat IGF-I. Long R3 IGF-I (LR3 IGF-I) is a synthetic analog of IGF-I that has a Glu3Arg substitution and a 13 aa N-terminal extension derived from methionyl porcine GH. It retains the ability to bind IGF-I R and Insulin R but shows reduced affinity for IGFBPs. As a result, LR3 IGF-I has an increased half-life and displays increased biological potency compared to IGF-I.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Publications for IGF-I/IGF-1 Recombinant Protein (NBP2-35000)(1)

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Bioinformatics

Gene Symbol IGF1
Uniprot