Download MendeleyCrystal structures of Escherichia coli dihydrofolate reductase: the NADP+ holoenzyme and the folate.NADP+ ternary complex. Substrate binding and a model for the transition state.
Bystroff, C., Oatley, S.J., Kraut, J.(1990) Biochemistry 29: 3263-3277
- PubMed: 2185835 Search on PubMed
- DOI: https://doi.org/10.1021/bi00465a018
- Primary Citation of Related Structures:
6DFR, 7DFR - PubMed Abstract:
- Crystal Structure of Unliganded Escherichia Coli Dihydrofolate Reductase. Ligand-Induced Conformational Changes and Cooperativity in Binding
Bystroff, C., Kraut, J.
() To be published --: -- - Crystal Structures of Escherichia Coli and Lactobacillus Casei Dihydrofolate Reductase Refined at 1.7 Angstroms Resolution. I. General Features and Binding of Methotrexate
Bolin, J.T., Filman, D.J., Matthews, D.A., Hamlin, R.C., Kraut, J.
(1982) J Biol Chem 257: 13650 - Effect of Single Amino Acid Replacements on the Folding and Stability of Dihydrofolate Reductase from Escherichia Coli
Perry, K.M., Onuffer, J.J., Touchette, N.A., Herndon, C.S., Gittelman, M.S., Matthews, C.R., Chen, J.-T., Mayer, R.J., Taira, K., Benkovic, S.J., Howell, E.E., Kraut, J.
(1987) Biochemistry 26: 2674 - Crystal Structures of Escherichia Coli and Lactobacillus Casei Dihydrofolate Reductase Refined at 1.7 Angstroms Resolution. II. Environment of Bound Nadph and Implications for Catalysis
Filman, D.J., Bolin, J.T., Matthews, D.A., Kraut, J.
(1982) J Biol Chem 257: 13663 - Crystal Structure of Avian Dihydrofolate Reductase Containing Phenyltriazine and Nadph
Volz, K.W., Matthews, D.A., Alden, R.A., Freer, S.T., Hansch, C., Kaufman, B.T., Kraut, J.
(1982) J Biol Chem 257: 2528 - Interpretation of Nuclear Magnetic Resonance Spectra for Lactobacillus Casei Dihydrofolate Reductase Based on the X-Ray Structure of the Enzyme-Methotrexate-Nadph Complex
Matthews, D.A.
(1979) Biochemistry 18: 1602 - Dihydrofolate Reductase from Lactobacillus Casei. Stereochemistry of Nadph Binding
Matthews, D.A., Alden, R.A., Freer, S.T., Xuong, N.-H., Kraut, J.
(1979) J Biol Chem 254: 4144 - Proton Magnetic Resonance Studies on Escherichia Coli Dihydrofolate Reductase. Assignment of Histidine C-2 Protons in Binary Complexes with Folates on the Basis of the Crystal Structure with Methotrexate and on Chemical Modifications
Poe, M., Hoogsteen, K., Matthews, D.A.
(1979) J Biol Chem 254: 8143 - Dihydrofolate Reductase from Lactobacillus Casei. X-Ray Structure of the Enzyme-Methotrexate-Nadph Complex
Matthews, D.A., Alden, R.A., Bolin, J.T., Filman, D.J., Freer, S.T., Hamlin, R., Hol, W.G.J., Kisliuk, R.L., Pastore, E.J., Plante, L.T., Xuong, N.-H., Kraut, J.
(1978) J Biol Chem 253: 6946 - Dihydrofolate Reductase. The Amino Acid Sequence of the Enzyme from a Methotrexate-Resistant Mutant of Escherichia Coli
Bennett, C.D., Rodkey, J.A., Sondey, J.M., Hirschmann, R.
(1978) Biochemistry 17: 1328 - Dihydrofolate Reductase. X-Ray Structure of the Binary Complex with Methotrexate
Matthews, D.A., Alden, R.A., Bolin, J.T., Freer, S.T., Hamlin, R., Xuong, N., Kraut, J., Poe, M., Williams, M., Hoogsteen, K.
(1977) Science 197: 452 - Dihydrofolate Reductase. Purification and Characterization of the Enzyme from an Amethopterin-Resistant Mutant of Escherichia Coli
Poe, M., Greenfield, N.J., Hirshfield, J.M., Williams, M.N., Hoogsteen, K.
(1972) Biochemistry 11: 1023
The crystal structure of dihydrofolate reductase (EC 1.5.1.3) from Escherichia coli has been solved as the binary complex with NADP+ (the holoenzyme) and as the ternary complex with NADP+ and folate. The Bragg law resolutions of the structures are 2.4 and 2 ...
The crystal structure of dihydrofolate reductase (EC 1.5.1.3) from Escherichia coli has been solved as the binary complex with NADP+ (the holoenzyme) and as the ternary complex with NADP+ and folate. The Bragg law resolutions of the structures are 2.4 and 2.5 A, respectively. The new crystal forms are nonisomorphous with each other and with the methotrexate binary complex reported earlier [Bolin, J. T., Filman, D. J., Matthews, D. A., Hamlin, R. C., & Kraut, J. (1982) J. Biol. Chem. 257, 13650-13662]. In general, NADP+ and folate binding conform to predictions, but the nicotinamide moiety of NADP+ is disordered in the holoenzyme and ordered in the ternary complex. A mobile loop (residues 16-20) involved in binding the nicotinamide is also disordered in the holoenzyme. We report a detailed analysis of the binding interactions for both ligands, paying special attention to several apparently strained interactions that may favor the transition state for hydride transfer. Hypothetical models are presented for the binding of 7,8-dihydrofolate in the Michaelis complex and for the transition-state complex.
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Organizational Affiliation:
Department of Chemistry, University of California, San Diego, La Jolla 92093.
