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VANABIN2

Gene
VANABIN2
Protein
Vanadium-binding protein 2
Organism
Ascidia sydneiensis samea
Length
120 amino acids
Function
Acts as a vanadium reductase which may form an electron transfer cascade in conjunction with NADPH and glutathione through thiol disulfide exchange reactions. Partial cleavage of its disulfide bonds results in the reduction of V(5+) to V(4+). Binds up to 24 V(4+) ions per protein at pH 7.5. Also binds Fe(3+) and Cu(2+) and, to a lesser extent, Co(2+), Zn(2+) and Ni(2+).
Mass
13.225 kDa
Sequence
MSKVIFALVLVVVLVACINATYVEFEEAYAPVDCKGQCTTPCEPLTACKEKCAESCETSADKKTCRRNCKKADCEPQDKVCDACRMKCHKACRAANCASECPKHEHKSDTCRACMKTNCK