The HIS3 gene, found in the Saccharomyces cerevisiae yeast, encodes a protein called Imidazoleglycerol-phosphate dehydratase which catalyses the sixth step in histidine biosynthesis.
A two-component system, involving histidine kinase and a variable response regulator protein, may be critical to the virulence of some fungal strains such as Candida albicans, which is often responsible for causing candidiasis in immunocompromised persons.
Histidine decarboxylase (HDC) is the enzyme that catalyzes the reaction which produces histamine from histidine.
It is also known as hexa histidine-tag, 6xHis-tag, His6 tag and by the trademarked name His-tag (registered by EMD Biosciences).
•
Various purification kits for histidine-tagged proteins are available from Qiagen, Sigma, Thermo Scientific, GE Healthcare, Macherey-Nagel, Clontech, Bio-Rad, and others.
Theramine is a specialized formula that consists of: Choline Bitartrate, L-arginine, L-histidine HCL, L-glutamine, L-serine, GABA, Griffonia Seed (95% 5HTP), Whey Protein Hydrolysate, Grape Seed Extract (85% Polyphenols), Cinnamon, and Cocoa Extract (6% Theobromine)