| Literature DB >> 2511835 |
E R Werner1, G Werner-Felmayer, D Fuchs, A Hausen, G Reibnegger, H Wachter.
Abstract
In all of eight tested human cells and cell lines with inducible indoleamine 2,3-dioxygenase (EC 1.13.11.17) tetrahydrobiopterin biosynthesis was activated by interferon-gamma. This was demonstrated by GTP cyclohydrolase I (EC 3.5.4.16) activities and intracellular neopterin and biopterin concentrations. Pteridine synthesis was influenced by extracellular tryptophan. In T 24-cell extracts, submillimolar concentrations of tetrahydrobiopterin stimulated the indoleamine 2,3-dioxygenase reaction.Entities:
Mesh:
Substances:
Year: 1989 PMID: 2511835 PMCID: PMC1133353 DOI: 10.1042/bj2620861
Source DB: PubMed Journal: Biochem J ISSN: 0264-6021 Impact factor: 3.857