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- PDB-1f28: CRYSTAL STRUCTURE OF THYMIDYLATE SYNTHASE FROM PNEUMOCYSTIS CARIN... -

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Basic information

Entry
Database: PDB / ID: 1f28
TitleCRYSTAL STRUCTURE OF THYMIDYLATE SYNTHASE FROM PNEUMOCYSTIS CARINII BOUND TO DUMP AND BW1843U89
ComponentsTHYMIDYLATE SYNTHASE
KeywordsTRANSFERASE / beta-sheet / protein-inhibitor complex
Function / homology
Function and homology information


thymidylate synthase / thymidylate synthase activity / dTMP biosynthetic process / dTTP biosynthetic process / methylation / mitochondrion / cytosol
Similarity search - Function
Thymidylate Synthase; Chain A / Thymidylate synthase/dCMP hydroxymethylase domain / Thymidylate synthase, active site / Thymidylate synthase active site. / Thymidylate synthase / Thymidylate synthase/dCMP hydroxymethylase / Thymidylate synthase/dCMP hydroxymethylase domain / Thymidylate synthase/dCMP hydroxymethylase superfamily / Thymidylate synthase / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-F89 / 2'-DEOXYURIDINE 5'-MONOPHOSPHATE / Thymidylate synthase
Similarity search - Component
Biological speciesPneumocystis carinii (fungus)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.9 Å
AuthorsAnderson, A.C. / O'Neil, R.H. / Surti, T.S. / Stroud, R.M.
CitationJournal: Chem.Biol. / Year: 2001
Title: Approaches to solving the rigid receptor problem by identifying a minimal set of flexible residues during ligand docking.
Authors: Anderson, A.C. / O'Neil, R.H. / Surti, T.S. / Stroud, R.M.
History
DepositionMay 23, 2000Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 6, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jan 31, 2018Group: Experimental preparation / Category: exptl_crystal_grow / Item: _exptl_crystal_grow.temp

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: THYMIDYLATE SYNTHASE
B: THYMIDYLATE SYNTHASE
C: THYMIDYLATE SYNTHASE
D: THYMIDYLATE SYNTHASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)140,84812
Polymers137,6134
Non-polymers3,2358
Water9,008500
1
A: THYMIDYLATE SYNTHASE
B: THYMIDYLATE SYNTHASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)70,4246
Polymers68,8072
Non-polymers1,6174
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7630 Å2
ΔGint-27 kcal/mol
Surface area22410 Å2
MethodPISA
2
C: THYMIDYLATE SYNTHASE
D: THYMIDYLATE SYNTHASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)70,4246
Polymers68,8072
Non-polymers1,6174
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7600 Å2
ΔGint-27 kcal/mol
Surface area22450 Å2
MethodPISA
Unit cell
Length a, b, c (Å)54.442, 65.898, 184.938
Angle α, β, γ (deg.)90.00, 90.24, 90.00
Int Tables number4
Space group name H-MP1211
DetailsThe dimer constructed from chains A and B or chains C and D is the biological assembly

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Components

#1: Protein
THYMIDYLATE SYNTHASE


Mass: 34403.281 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pneumocystis carinii (fungus) / Plasmid: PUETS-1.8 / Production host: Escherichia coli (E. coli) / Strain (production host): CHI-2913 / References: UniProt: P13100, thymidylate synthase
#2: Chemical
ChemComp-UMP / 2'-DEOXYURIDINE 5'-MONOPHOSPHATE / DUMP


Mass: 308.182 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C9H13N2O8P
#3: Chemical
ChemComp-F89 / S)-2-(5(((1,2-DIHYDRO-3-METHYL-1-OXOBENZO(F)QUINAZOLIN-9-YL)METHYL)AMINO)1-OXO-2-ISOINDOLINYL)GLUTARIC ACID / FOLATE ANALOG 1843U89


Mass: 500.503 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C27H24N4O6
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 500 / Source method: isolated from a natural source / Formula: H2O

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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: 2.41 Å3/Da / Density % sol: 48.95 %
Crystal growTemperature: 297 K / Method: vapor diffusion, hanging drop / pH: 7.4
Details: PEG 8000, Tris, Ammonium sulfate, DTT, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 24K
Crystal grow
*PLUS
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
10.100 mMenzyme1drop
22 mMBW1843U891drop
32.2 mMdUMP1drop
42.2 mMdithiothreitol1drop
514.5 %PEG80001reservoir
60.25 Mammonium sulfate1reservoir
75 mMdithiothreitol1reservoir
8100 mMTris1reservoir

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Data collection

DiffractionMean temperature: 137 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL9-1 / Wavelength: 1.08
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Mar 22, 1999
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.08 Å / Relative weight: 1
ReflectionResolution: 1.9→500 Å / Num. all: 104488 / Num. obs: 94284 / % possible obs: 90.3 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 2 / Redundancy: 4 % / Biso Wilson estimate: 16.3 Å2 / Rmerge(I) obs: 0.088 / Net I/σ(I): 14.4
Reflection shellResolution: 1.9→1.93 Å / Redundancy: 4 % / Rmerge(I) obs: 0.523 / Num. unique all: 3882 / % possible all: 75.1
Reflection
*PLUS
Lowest resolution: 50 Å / Num. obs: 104488 / Num. measured all: 530911

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Processing

Software
NameVersionClassification
AMoREphasing
CNS0.9refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementResolution: 1.9→22.4 Å / Rfactor Rfree error: 0.003 / Data cutoff high absF: 2037142.52 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 2 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.247 8631 10 %RANDOM
Rwork0.217 ---
obs0.217 86406 83.5 %-
all-86406 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 44.37 Å2 / ksol: 0.357 e/Å3
Displacement parametersBiso mean: 30.8 Å2
Baniso -1Baniso -2Baniso -3
1-2.96 Å20 Å20.64 Å2
2---2.91 Å20 Å2
3----0.05 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.27 Å0.24 Å
Luzzati d res low-5 Å
Luzzati sigma a0.21 Å0.18 Å
Refinement stepCycle: LAST / Resolution: 1.9→22.4 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms9594 0 228 500 10322
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.013
X-RAY DIFFRACTIONc_angle_deg1.7
X-RAY DIFFRACTIONc_dihedral_angle_d24.5
X-RAY DIFFRACTIONc_improper_angle_d1.04
X-RAY DIFFRACTIONc_mcbond_it0.871.5
X-RAY DIFFRACTIONc_mcangle_it1.522
X-RAY DIFFRACTIONc_scbond_it1.092
X-RAY DIFFRACTIONc_scangle_it1.72.5
Refine LS restraints NCSNCS model details: CONSTR
LS refinement shellResolution: 1.9→2.02 Å / Rfactor Rfree error: 0.008 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.279 1166 10.3 %
Rwork0.249 10189 -
obs--66.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2PARAM.DUBW.LIGTOPO.DUBW
Software
*PLUS
Name: CNS / Version: 0.9 / Classification: refinement
Refinement
*PLUS
σ(F): 2 / % reflection Rfree: 10 %
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 30.8 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_angle_deg1.7
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg24.5
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg1.04
X-RAY DIFFRACTIONc_mcbond_it1.5
X-RAY DIFFRACTIONc_scbond_it2
X-RAY DIFFRACTIONc_mcangle_it2
X-RAY DIFFRACTIONc_scangle_it2.5
LS refinement shell
*PLUS
Rfactor Rfree: 0.279 / % reflection Rfree: 10.3 % / Rfactor Rwork: 0.249

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