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Cayman Serum Retinol Binding Protein 4 (Human Recombinant); Purit
Cayman Serum Retinol Binding Protein 4 (Human Recombinant); Purity- Greater Than Or Equal To 95%; Size- 100 Micrograms; - CAYM (Additional S&H Or Hazmat Fees May Apply)
Human serum retinol binding protein 4 (sRBP4) binds to one equivalent of vitamin A and is one of the major retinol carriers found in the blood of mammals., Human sRBP4 is a monomeric 21 kDa β-sheet-rich protein that contains three disulfide bonds and belongs to the lipocalin protein family. In plasma, sRBP4 typically forms a 1:1 complex with the 55 kDa tetrameric protein transthyretin (TTR) which prevents RBP from being removed from the plasma by glomerular filtration. Recent studies have shown that sRBP4 is an adipocyte-derived “signal” that may contribute to the pathogenesis of type 2 diabetes., Elevation of sRBP4 causes systemic insulin resistance, whereas reduced serum concentrations of sRBP4 improves insulin action.,, Cayman’s human recombinant sRBP4 contains a C-terminal hexahistidine tag. The purified protein was characterized for its retinol binding activity.
WARNING This product is not for human or veterinary use.
Technical Information
Synonyms
RBP4
sRBP4
Purity
≥95%
Source
Recombinant His-tagged protein purified from E. coli
MW
~21 kDa
Formulation
50 mM sodium phosphate, pH 8.2, with 100 mM sodium chloride and 20% glycerol