SRP4121 Sigma-Aldrich

IGF-I from rat

recombinant, expressed in E. coli, ≥95% (SDS-PAGE), ≥95% (HPLC)

Synonym: IGF-I, IGF1, IGFIA, Somatomedin C



General description

IGF-I (insulin-like growth factor-I) is a member of a family of polypeptide growth factors. Rat IGF-I is a 7.69kDa protein containing 70 amino acid residues.


IGF-I (Insulin-like Growth Factor-I) from rat has been used to study the the effect of IGF-I, IL-27 (interleukin-27) and IL-35 on the blood flow in the inflamed joints of rats.

Biochem/physiol Actions

IGF-I (Insulin-like growth factor-I) is a polypeptide growth factor that stimulates the proliferation of a wide range of cell types including muscle, bone and cartilage tissue. It mainly mediates growth and development. IGF-I is required for fetal growth and development. It is also involved in the growth and repair of heart tissues. IGF-I has been linked to neuroplasticity and hippocampal neurogenesis. It is important in the recovery from ischaemic injury.

Physical form

Lyophilized without additives.


Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.

Reconstitute in water to a concentration of 0.1-1.0 mg/mL. This solution can then be diluted into other aqueous buffers.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis


Request a Serum Sample

Cell Culture Guide
Protocols & Articles


Huntington's Disease

Huntington's disease (HD) is an autosomal dominant, late-onset neurodegenerative disorder characterized by a selective neuronal cell death in the cortex and striatum leading to cognitive dysfunction,...
Carolyn L. Crankshaw
BioFiles v7 n2, 2011, 9–14
Keywords: Apoptosis, Huntington Disease, Transcription

Related Content

Cell Culture Troubleshooting Guide

Cell culture has become one of the most fundamental techniques for modeling biological systems, and is of increasing importance in the biotechnology and pharmaceutical sectors as well as an essential...
Keywords: Antibiotics, Apoptosis, Cell attachment, Cell culture, Cryopreservation, Filtration, Growth factors, Pharmaceutical, Phase transitions

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?