title: Conversion of 5-hydroxytryptophan into serotonin by tryptophan decarboxylase in plants, Escherichia coli, and yeast.
abstract: The L-tryptophan decarboxylase (TDC) gene of rice was heterologously expressed in various organisms. Transgenic rice overexpressing TDC showed accumulation of serotonin upon 5-hydroxytryptophan treatment, which was consistent with the in vitro 5-hydroxytryptophan decarboxylase enzyme activity of purified recombinant rice TDC in a pyridoxal phosphate-dependent manner. Recombinant yeast harboring TDC produced serotonin at the expense of the endogenous 5-hydroxytryptophan levels.
authors.affiliation: Department of Molecular Biotechnology, Agricultural Plant Stress Research Center, Biotechnology Research Institute, Chonnam National University, Gwangju, Japan.
authors.forename: Munyoung
authors.initials: M
authors.lastname: Park
authors.forename: Kiyoon
authors.initials: K
authors.lastname: Kang
authors.forename: Sangkyu
authors.initials: S
authors.lastname: Park
authors.forename: Kyoungwhan
authors.initials: K
authors.lastname: Back
mesh_terms: D006916:5-Hydroxytryptophan / Q000378:metabolism; D001142:Aromatic-L-Amino-Acid Decarboxylases / Q000235:genetics* / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism; D012275:Oryza / Q000235:genetics / Q000378:metabolism; D010944:Plants / Q000235:genetics* / Q000378:metabolism; D030821:Plants, Genetically Modified / Q000235:genetics / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000235:genetics* / Q000378:metabolism; D012701:Serotonin / Q000235:genetics*; D015003:Yeasts / Q000235:genetics / Q000378:metabolism
chemical_list: D012701:Serotonin; D006916:5-Hydroxytryptophan; D001142:Aromatic-L-Amino-Acid Decarboxylases