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- PDB-6pr7: S. aureus dihydrofolate reductase co-crystallized with benzyl-dih... -

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Basic information

Entry
Database: PDB / ID: 6pr7
TitleS. aureus dihydrofolate reductase co-crystallized with benzyl-dihydropthalazine inhibitor and NADP(H)
ComponentsDihydrofolate reductase
KeywordsOXIDOREDUCTASE/INHIBITOR / DIHYDROFOLATE REDUCTASE / OXIDOREDUCTASE-INHIBITOR COMPLEX
Function / homology
Function and homology information


dihydrofolate metabolic process / dihydrofolate reductase / dihydrofolate reductase activity / folic acid metabolic process / tetrahydrofolate biosynthetic process / one-carbon metabolic process / NADP binding / 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
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / Chem-OWP / Dihydrofolate reductase
Similarity search - Component
Biological speciesStaphylococcus aureus (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.01 Å
AuthorsBourne, C.R. / Thomas, L.M.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)R01-AI090685-01 United States
CitationJournal: Eur.J.Med.Chem. / Year: 2020
Title: Inhibitor design to target a unique feature in the folate pocket of Staphylococcus aureus dihydrofolate reductase.
Authors: Muddala, N.P. / White, J.C. / Nammalwar, B. / Pratt, I. / Thomas, L.M. / Bunce, R.A. / Berlin, K.D. / Bourne, C.R.
History
DepositionJul 10, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 17, 2020Provider: repository / Type: Initial release
Revision 1.1Oct 11, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Dihydrofolate reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)20,2075
Polymers18,7431
Non-polymers1,4644
Water1,946108
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)79.050, 79.050, 107.490
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number178
Space group name H-MP6122
Symmetry operation#1: x,y,z
#2: x-y,x,z+1/6
#3: y,-x+y,z+5/6
#4: -y,x-y,z+1/3
#5: -x+y,-x,z+2/3
#6: x-y,-y,-z
#7: -x,-x+y,-z+2/3
#8: -x,-y,z+1/2
#9: y,x,-z+1/3
#10: -y,-x,-z+5/6
#11: -x+y,y,-z+1/2
#12: x,x-y,-z+1/6

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Components

#1: Protein Dihydrofolate reductase / DHFR


Mass: 18742.533 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Staphylococcus aureus (bacteria) / Gene: folA / Production host: Escherichia coli (E. coli) / References: UniProt: P0A017, dihydrofolate reductase
#2: Chemical ChemComp-NAP / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE


Mass: 743.405 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H28N7O17P3
#3: Chemical ChemComp-OWP / (2E)-1-[(1S)-1-benzylphthalazin-2(1H)-yl]-3-{5-[(2,4-diaminopyrimidin-5-yl)methyl]-2,3-dimethoxyphenyl}prop-2-en-1-one


Mass: 536.624 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C31H32N6O3 / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Formula: C3H8O3
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 108 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.6 Å3/Da / Density % sol: 52.78 %
Crystal growTemperature: 293 K / Method: vapor diffusion / Details: 20% PEG6000, 0.1M MES, 0.15 Na Acetate

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH3R / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Apr 4, 2012 / Details: Osmic Mirrors
RadiationMonochromator: Mirrors / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.01→25.2 Å / Num. obs: 13814 / % possible obs: 99.8 % / Redundancy: 11.2 % / Biso Wilson estimate: 20.7 Å2 / Rmerge(I) obs: 0.063 / Net I/σ(I): 16.4
Reflection shellResolution: 2.01→2.08 Å / Rmerge(I) obs: 0.282 / Num. unique obs: 1360

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Processing

Software
NameVersionClassification
PHENIX1.8.4_1496refinement
CrystalCleardata collection
d*TREKdata reduction
d*TREKdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3M08

3m08


Resolution: 2.01→25.157 Å / SU ML: 0.21 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 21.85
RfactorNum. reflection% reflection
Rfree0.2207 689 5 %
Rwork0.191 --
obs0.1925 13772 99.62 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso max: 95.19 Å2 / Biso mean: 23.58 Å2 / Biso min: 9.16 Å2
Refinement stepCycle: final / Resolution: 2.01→25.157 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1308 0 100 108 1516
Biso mean--30.33 26.45 -
Num. residues----163
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0081472
X-RAY DIFFRACTIONf_angle_d1.2692010
X-RAY DIFFRACTIONf_chiral_restr0.053220
X-RAY DIFFRACTIONf_plane_restr0.005246
X-RAY DIFFRACTIONf_dihedral_angle_d19.668549
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection Rwork% reflection obs (%)
2.01-2.1630.28051400.21782540100
2.163-2.38050.23091390.2228253098
2.3805-2.72460.24011130.21072616100
2.7246-3.43140.22321470.1962617100
3.4314-25.1570.19551500.16252780100

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