Follistatin-Related Protein 1/FSTL1 Protein(C-6His, E. coli) (recombinant human)

Protein Construction: Recombinant Human Follistatin-like Protein 1 is produced by our E.coli expression system and the target gene encoding Glu21-Ile308 is expressed with a 6His tag at the C-terminus. Sequence: Glu21-Ile308. Fusion tag: C-6His Endotoxin: < 1.0 EU per µg as determined by the LAL method. Apparent Molecular Mass: 35 kDa. Protein function: Follistatin-Related Protein 1 (FSTL1) is a secreted protein that contains two EF-hand domains, one follistatin-like domain, one Kazal-like domain, and one VWFC domain. Its functional significance in physiological and pathological processes is not completely understood. However, FSTL1 is thought to modulate the action of some growth factors on cell proliferation and differentiation. FSTL1 maybe an autoantigen associated with rheumatoid arthritis. Protein function: May modulate the action of some growth factors on cell proliferation and differentiation. Binds heparin. [The UniProt Consortium]