2006•Tianran chanwu yanjiu yu kaifaRequires access

Study on Purification and Characterization of Sheep Placental Immunoreglating Activity Factor-I

Wei Hong

Abstract

The sheep placental immunoreglating activity factor-Ⅰ(SPIF-Ⅰ) that one of the components of sheep placenta was isolated and purified from sheep placenta extract by ultrafiltration,Sephadex G-50,Sephadex G-25 and Sephadex G-10 gel filtration chromatography.SPIF-Ⅰ exhibited a molecular mass of 303.8 by ESI-MS,and its abstract summit of ultraviolet ray was 273 nm.The results of biologicol activity showed that SPIF-Ⅰ specifically increased the proliferative respond of mitogen ConA-induced mouse splenocytes.That SPIF-I was a small chain peptide with immunoreglating activity of sheep placenta extract.

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Key concepts: Sephadex, Size-exclusion chromatography, Placenta, Chemistry, Ultrafiltration (renal), Molecular mass, Chromatography, Biology