• 1
    Nagatsu T, Levitt M, Udenfriend S. Tyrosine hydroxylase: the initial step in norepinephrine biosynthesis. J Biol Chem 1964; 239: 29102917.
  • 2
    Shiman R. In: BlakleyRL, BenkovicSJ, editors. Folates and pterines. Volume 2. New York: Wiley; 1985. p 179249.
  • 3
    Kaufman S, Kaufman EE. In: BlakleyRL, BenkovicSJ, editors. Folates and pterines. Volume 2. New York: Wiley; 1985. p 252352.
  • 4
    Varughese KI, Skinner MM, Whiteley JM, Matthews DA, Xuong NH. Crystal structure of rat liver dihydropteridine reductase. Proc Natl Acad Sci USA 1992; 89: 60806084.
  • 5
    Su Y, Xuong NH, Matthews DA, Whiteley JM, Varughese KI. Crystal structure of a monoclinic form of dihydropteridine reductase from rat liver. Acta Crystallogr D 1994; D50: 884888.
  • 6
    Su Y, Varughese KI, Xuong NH, Bray TL, Roche DJ, Whiteley JM. The crystallographic structure of a human dihydropteridine reductase NADH binary complex expressed in Escherichia coli by a cDNA constructed from its rat homologue. J Biol Chem 1993; 268: 2683626841.
  • 7
    Rossmann MG, Liljas A, Branden CI, Banaszak LJ. In: BoyerPD, editor. The Enzymes. New York: Academic Press; 1975. p 61102.
  • 8
    Norvell JC, Machalek AZ. Structural genomics programs at the US National Institute of General Medical Sciences. Nat Struct Biol 2000; 7(Suppl): 931931.
  • 9
    Otwinowski Z, Minor W. Processing of x-ray diffraction data collected in oscillation mode. Methods Enzymol 1997; 276: 307326.
  • 10
    Navaza J. AMoRe: An automated package for molecular replacement. Acta Crystallogr A 1994; A50: 157163.
  • 11
    Jones TA, Bergdoll M, Kjeldgaard M. Crystallographic computing and modeling methods in molecular design. New York: Springer; 1993.
  • 12
    Brunger AT, Adams PD, Clore GM, et al. Crystallography and NMR system: a new software suite for macromolecular structure determination. Acta Crystallogr D 1998; D54: 905921.
  • 13
    Hooft RWW, Vriend G. Whatcheck: a structure validation system. Heidelberg, Germany: EMBL; 1995.
  • 14
    Ramachandran GN, Ramakrishnan C, Sasisekharan V. Stereochemistry of polypeptide chain configurations. J Mol Biol 1963; 7: 9599.