The tetramer binds two molecules of protoheme IV. It is a homotetramer involved in tryptophan catabolism. There is a broad specificity towards tryptamine and derivatives including D- and L-tryptophan, 5-hydroxytryptophan and serotonin.

• This recombinant protein can be used for WB, ELISA, MS.

10 mM Tris, pH 8.0, 0.1% Triton X-100, 0.002% NaN

Store in working aliquots at -80°C. Avoid freeze/thaw cycles.