S100 proteins constitute a family of about 20 calciumbinding proteins. These small proteins (10-12 kDa) have 20-50% homology of amino acid sequences but differ by origin and functions and may serve as markers of different pathological states.
Cat# 4S37: S100 proteins, human
Cat# 8S9h: S100BB homodimer and S100A1B heterodimer, human
Cat# 8S9b: S100BB homodimer and S100A1B heterodimer, bovine
Cat# 8S9-2h: S100BB homodimer, human
Cat# 8S9-2b: S100BB homodimer, bovine