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- PDB-1dyh: ISOMORPHOUS CRYSTAL STRUCTURES OF ESCHERICHIA COLI DIHYDROFOLATE ... -

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Basic information

Entry
Database: PDB / ID: 1dyh
TitleISOMORPHOUS CRYSTAL STRUCTURES OF ESCHERICHIA COLI DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE, 5-DEAZAFOLATE AND 5,10-DIDEAZATETRAHYDROFOLATE: MECHANISTIC IMPLICATIONS
ComponentsDIHYDROFOLATE REDUCTASE
KeywordsOXIDOREDUCTASE
Function / homology
Function and homology information


methotrexate binding / dihydrofolic acid binding / 10-formyltetrahydrofolate biosynthetic process / response to methotrexate / NADP+ binding / folic acid biosynthetic process / folic acid binding / dihydrofolate metabolic process / dihydrofolate reductase / dihydrofolate reductase activity ...methotrexate binding / dihydrofolic acid binding / 10-formyltetrahydrofolate biosynthetic process / response to methotrexate / NADP+ binding / folic acid biosynthetic process / folic acid binding / dihydrofolate metabolic process / dihydrofolate reductase / dihydrofolate reductase activity / folic acid metabolic process / NADPH binding / tetrahydrofolate biosynthetic process / one-carbon metabolic process / NADP binding / response to xenobiotic stimulus / response to antibiotic / cytosol
Similarity search - Function
Dihydrofolate reductase / Dihydrofolate Reductase, subunit A / Dihydrofolate Reductase, subunit A / Dihydrofolate reductase conserved site / Dihydrofolate reductase (DHFR) domain signature. / Dihydrofolate reductase (DHFR) domain profile. / Dihydrofolate reductase domain / Dihydrofolate reductase / Dihydrofolate reductase-like domain superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
5-DEAZAFOLIC ACID / Dihydrofolate reductase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / Resolution: 1.9 Å
AuthorsReyes, V.M. / Kraut, J.
Citation
Journal: Biochemistry / Year: 1995
Title: Isomorphous crystal structures of Escherichia coli dihydrofolate reductase complexed with folate, 5-deazafolate, and 5,10-dideazatetrahydrofolate: mechanistic implications.
Authors: Reyes, V.M. / Sawaya, M.R. / Brown, K.A. / Kraut, J.
#1: Journal: Biochemistry / Year: 1991
Title: Crystal Structure of Unliganded Escherichia Coli Dihydrofolate Reductase. Ligand Induced Conformational Changes and Cooperativity Binding
Authors: Bystroff, C. / Kraut, J.
#2: Journal: Biochemistry / Year: 1990
Title: Crystal Structures of Escherichia Coli Dihydrofolate Reductase and Folate.Nadp+ Ternary Complex. Substrate Binding and a Model for the Transition State
Authors: Bystroff, C. / Oatley, S.J. / Kraut, J.
#3: Journal: Biochemistry / Year: 1990
Title: Crystal Structures of Recombinant Human Dihydrofolate Reductase Complexed with Folate and 5-Deazafolate
Authors: Davies II, J.F. / Delcamp, T.J. / Prendergast, N.J. / Freisheim, J.H. / Kraut, J.
#4: Journal: J.Biol.Chem. / Year: 1982
Title: Crystal Structures of Escherichia Coli and Lactobacillus Casei Dihydrofolate Reductase Refined at 1.7 Angstroms Resolution I. General Features and Binding of Methotrexate
Authors: Bolin, J.T. / Filman, D.J. / Matthews, D.A. / Hamlin, R.C. / Kraut, J.
#5: Journal: J.Biol.Chem. / Year: 1982
Title: Crystal Structures of Escherichia Coli and Lactobacillus Casei Dihydrofolate Reductase at 1.7 Angstroms Resolution. II. Environment of Bound Nadph and Implications for Catalysis
Authors: Filman, D.J. / Bolin, J.T. / Matthews, D.A. / Kraut, J.
History
DepositionOct 26, 1994Processing site: BNL
Revision 1.0Jun 3, 1995Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 7, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr1_symmetry / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: DIHYDROFOLATE REDUCTASE
B: DIHYDROFOLATE REDUCTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)37,0327
Polymers36,0412
Non-polymers9925
Water7,602422
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)93.205, 93.205, 73.942
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number169
Space group name H-MP61
Atom site foot note1: GLY A 95 - GLY A 96 OMEGA = 2.11 PEPTIDE BOND DEVIATES SIGNIFICANTLY FROM TRANS CONFORMATION
2: GLY B 95 - GLY B 96 OMEGA = 359.95 PEPTIDE BOND DEVIATES SIGNIFICANTLY FROM TRANS CONFORMATION

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Components

#1: Protein DIHYDROFOLATE REDUCTASE


Mass: 18020.326 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / References: UniProt: P0ABQ4, dihydrofolate reductase
#2: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#3: Chemical ChemComp-DZF / 5-DEAZAFOLIC ACID


Mass: 440.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C20H20N6O6
#4: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 422 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.57 Å3/Da / Density % sol: 52.16 %
Crystal grow
*PLUS
Temperature: 4 ℃ / pH: 6.8 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
10.5 ML-histidine hydrochloride1drop
20.5 Mcalcium acetate1drop
30.1 MTris-HCl1reservoir
415-25 %ethanol1reservoir

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 1.9 Å / Num. obs: 21817 / % possible obs: 88 % / Redundancy: 2.5 % / Rmerge(I) obs: 0.038

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Processing

SoftwareName: TNT / Classification: refinement
RefinementRfactor obs: 0.149 / Highest resolution: 1.9 Å
Refinement stepCycle: LAST / Highest resolution: 1.9 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2508 0 67 422 2997
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_bond_d0.014
X-RAY DIFFRACTIONt_angle_deg2.93
X-RAY DIFFRACTIONt_dihedral_angle_d
X-RAY DIFFRACTIONt_incorr_chiral_ct
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes
X-RAY DIFFRACTIONt_it
X-RAY DIFFRACTIONt_nbd
Refinement
*PLUS
Num. reflection all: 21817
Solvent computation
*PLUS
Displacement parameters
*PLUS

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