Results 151 to 160 of about 5,611 (205)

Biosynthesis, Regulation, and Biotechnological Production Strategies of Riboflavin (Vitamin B₂) and Its Derivatives: A Review. [PDF]

Pharmaceuticals (Basel)
Jiménez-Nava RA, Chávez-Camarillo GM, Cristiani-Urbina E.   +2 more
europepmc   +1 more source

GTP cyclohydrolase from Eremothecium ashbyii.

Indian journal of experimental biology, 1980
H B, Mehta, V V, Modi
openaire   +1 more source

Evaluation of mdh, dld, tcfA, and folE gene markers for detection of enteric fever using real-time PCR. [PDF]

Sci Rep
Arshad S, Younas S, Qadir ML, Hussain N, Saleem MZ, Ali Q, Han S, Ali D.   +7 more
europepmc   +1 more source

Genetic analysis reveals phenotypic variability in three Colombian families with dopa-responsive dystonia: novel genotype-phenotype correlations. [PDF]

BMC Med Genomics
Lince-Rivera I, Martinez-Córdoba N, Ramón-Gómez JL, Cabarcas L, Zarante-Bahamón AM.   +4 more
europepmc   +1 more source

Emerging roles of pterins as signaling molecules in bacteria. [PDF]

Biochem Soc Trans
Rucker P, Augusta L, Fuqua C, Allen KD.
europepmc   +1 more source

Changes of folate constituents and contents in pakchoi as affected by nitrate to ammonium ratio in nutrient solution under hydroponic conditions. [PDF]

J Zhejiang Univ Sci B
Zhu Y, Cheng W, Ni Y, Ni W.
europepmc   +1 more source

Structural and mechanistic insights into the divergence of pterin deaminase and sepiapterin deaminase. [PDF]

Appl Microbiol Biotechnol
Shanmuganathan N, Manikandan S, Johnson J, Balasubramani S, Jayaraman A, Paleri S, Ranjith T, A TP.   +7 more
europepmc   +1 more source

Atomic structure of GTP cyclohydrolase I [PDF]

Structure, 1995
Tetrahydrobiopterin serves as the cofactor for enzymes involved in neurotransmitter biosynthesis and as regulatory factor in immune cell proliferation and the biosynthesis of melanin. The biosynthetic pathway to tetrahydrobiopterin consists of three steps starting from GTP.
Herbert Nar, Sevil Weinkauf, Adelbert Bacher   +2 more
exaly   +5 more sources

Biosynthesis of Pteridines. Reaction Mechanism of GTP Cyclohydrolase I [PDF]

Journal of Molecular Biology, 2003
GTP cyclohydrolase I catalyses the hydrolytic release of formate from GTP followed by cyclization to dihydroneopterin triphosphate. The enzymes from bacteria and animals are homodecamers containing one zinc ion per subunit. Replacement of Cys110, Cys181, His112 or His113 of the enzyme from Escherichia coli by serine affords catalytically inactive ...
Andreas Bracher, Herbert Nar, Nicholas Schramek   +2 more
exaly   +6 more sources