High-mobility group box 1 protein (HMGB1), previously known as HMG-1 or amphoterin, is a member of the high mobility group box family of non-histone chromosomal proteins. Human HMGB1 is expressed as a 30kD, 215aa single chain polypeptide containing three domains: two N-terminal globular, 70aa positively charged DNA-binding domains (HMG boxes A and B), and a negatively charged 30aa C-terminal region that contains only Asp and Glu.4, 5 Residues 27-43 and 178-184 contain a NLS. Posttranslational modifications of the molecule have been reported, with acetylation occurring on as many as 17 lysine residues. HMGB1 is expressed at high levels in almost all cells. It was originally discovered as a nuclear protein that could bend DNA. Such bending stabilizes nucleosome formation and regulates the expression of select genes upon recruitment by DNA binding proteins.
Source:Recombinant protein corresponding to human High-Mobility Group Box 1, a single, non-glycosylated, polypeptide chain containing 223aa, fused to 6X His-tag, expressed in E. coli.
Molecular Weight:~26kD
Storage and Stability:Lyophilized powder may be stored at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
仕様
Size：10ug
Source Antigen：Recombinant, E. coli
Grade：Highly Purified
Purity：~95% (RP-HPLC, SDS-PAGE)
Form：Supplied as a lyophilized powder in PBS, pH 7.4. No preservative added. Reconstitute with 100ul sterile ddH2O.
