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- PDB-1bo8: THYMIDYLATE SYNTHASE R178T MUTANT -

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Basic information

Entry
Database: PDB / ID: 1bo8
TitleTHYMIDYLATE SYNTHASE R178T MUTANT
ComponentsPROTEIN (THYMIDYLATE SYNTHASE)
KeywordsTRANSFERASE / TRANSFERASE (METHYLTRANSFERASE) / METHYLTRANSFERASE / NUCLEOTIDE BIOSYNTHESIS
Function / homology
Function and homology information


thymidylate synthase / thymidylate synthase activity / dTMP biosynthetic process / dTTP biosynthetic process / methylation / cytoplasm
Similarity search - Function
Thymidylate Synthase; Chain A / Thymidylate synthase/dCMP hydroxymethylase domain / Thymidylate synthase/dCMP hydroxymethylase / Thymidylate synthase, active site / Thymidylate synthase active site. / Thymidylate synthase / Thymidylate synthase/dCMP hydroxymethylase domain / Thymidylate synthase/dCMP hydroxymethylase superfamily / Thymidylate synthase / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
: / URIDINE-5'-MONOPHOSPHATE / Thymidylate synthase
Similarity search - Component
Biological speciesLactobacillus casei (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.4 Å
AuthorsMorse, R. / Finer-Moore, J. / Stroud, R.M.
Citation
Journal: Biochemistry / Year: 2000
Title: Energetic contributions of four arginines to phosphate-binding in thymidylate synthase are more than additive and depend on optimization of "effective charge balance".
Authors: Morse, R.J. / Kawase, S. / Santi, D.V. / Finer-Moore, J. / Stroud, R.M.
#1: Journal: Faseb J. / Year: 1993
Title: Stereochemistry of a Multistep/Bipartite Methyl Transfer Reaction: Thymidylate Synthase
Authors: Stroud, R.M. / Finer-Moore, J.S.
#2: Journal: J.Mol.Biol. / Year: 1993
Title: Refined Structures of Substrate-Bound and Phosphate-Bound Thymidylate Synthase from Lactobacillus Casei
Authors: Finer-Moore, J.S. / Fauman, E.B. / Foster, P.G. / Perry, K.M. / Santi, D.V. / Stroud, R.M.
#3: Journal: Science / Year: 1987
Title: Atomic Structure of Thymidylate Synthase: Target for Rational Drug Design
Authors: Hardy, L.W. / Finer-Moore, J.S. / Montfort, W.R. / Jones, M.O. / Santi, D.V. / Stroud, R.M.
History
DepositionAug 10, 1998Deposition site: BNL / Processing site: RCSB
Revision 1.0Aug 19, 1998Provider: repository / Type: Initial release
Revision 1.1Oct 16, 2007Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Nov 3, 2021Group: Database references / Derived calculations / Category: database_2 / 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 / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 9, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PROTEIN (THYMIDYLATE SYNTHASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,9383
Polymers36,5741
Non-polymers3632
Water1,18966
1
A: PROTEIN (THYMIDYLATE SYNTHASE)
hetero molecules

A: PROTEIN (THYMIDYLATE SYNTHASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)73,8756
Polymers73,1492
Non-polymers7274
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation11_554-x+y,y,-z-1/21
Buried area4440 Å2
ΔGint-18 kcal/mol
Surface area25850 Å2
MethodPISA
Unit cell
Length a, b, c (Å)78.500, 78.500, 241.700
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number178
Space group name H-MP6122
Components on special symmetry positions
IDModelComponents
11A-317-

K

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Components

#1: Protein PROTEIN (THYMIDYLATE SYNTHASE) / EC 2.1.1.45


Mass: 36574.363 Da / Num. of mol.: 1 / Mutation: R178T
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lactobacillus casei (bacteria) / Strain: E. COLI CHI-2913 / Description: SYNTHETIC GENE / Plasmid: PKPTSD / Production host: Escherichia coli (E. coli) / Strain (production host): CHI-2913 / References: UniProt: P00469, thymidylate synthase
#2: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: K
#3: Chemical ChemComp-U / URIDINE-5'-MONOPHOSPHATE / Uridine monophosphate


Type: RNA linking / Mass: 324.181 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H13N2O9P
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 66 / Source method: isolated from a natural source / Formula: H2O
Nonpolymer detailsK 1 IS A POSSIBLE POTASSIUM ION THAT LIES ON A MOLECULAR AND CRYSTALLOGRAPHIC TWO-FOLD AXIS.

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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: 2.94 Å3/Da / Density % sol: 57 %
Crystal growpH: 7 / Details: pH 7.0
Crystal grow
*PLUS
Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
110 mg/mlprotein1drop
220 mMpotassium phosphate1drop
320 mMpotassium phosphate1reservoir
420 mMammonium sulfate1reservoir
538 mMdUMP1reservoir

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: Jul 15, 1995
RadiationMonochromator: GRAPHITE MONOCHROMATOR / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.4→50 Å / Num. obs: 17212 / % possible obs: 94.3 % / Observed criterion σ(I): 0 / Redundancy: 3.5 % / Biso Wilson estimate: 37.5 Å2 / Rmerge(I) obs: 0.081 / Rsym value: 8.1 / Net I/σ(I): 15.4
Reflection shellResolution: 2.4→2.5 Å / Redundancy: 3 % / Mean I/σ(I) obs: 2 / Rsym value: 62 / % possible all: 87.1
Reflection
*PLUS
% possible obs: 94.7 %
Reflection shell
*PLUS
% possible obs: 87.1 % / Rmerge(I) obs: 0.62

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Processing

Software
NameVersionClassification
X-PLORmodel building
X-PLOR3.8refinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1TDM

1tdm
PDB Unreleased entry


Resolution: 2.4→7 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 10000 / Data cutoff low absF: 0.001 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 2
Details: K 1 IS A POSSIBLE POTASSIUM ION THAT LIES ON A MOLECULAR AND CRYSTALLOGRAPHIC TWO-FOLD AXIS.
RfactorNum. reflection% reflectionSelection details
Rfree0.273 1551 9.8 %RANDOM
Rwork0.196 ---
obs0.196 15840 94.6 %-
Displacement parametersBiso mean: 34.4 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0 Å20 Å2
3---0 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.38 Å0.29 Å
Luzzati d res low-5 Å
Luzzati sigma a-0.37 Å
Refinement stepCycle: LAST / Resolution: 2.4→7 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2589 0 21 66 2676
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.011
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.6
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d24.6
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.35
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it3.821.5
X-RAY DIFFRACTIONx_mcangle_it5.482
X-RAY DIFFRACTIONx_scbond_it4.471.5
X-RAY DIFFRACTIONx_scangle_it6.432
LS refinement shellResolution: 2.4→2.5 Å / Rfactor Rfree error: 0.023 / Total num. of bins used: 8
RfactorNum. reflection% reflection
Rfree0.362 206 10.8 %
Rwork0.33 1678 -
obs--89.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARHCSDX.PROTOPHCSDX.PRO
X-RAY DIFFRACTION2PARAM11.WATTOPH11.WAT
X-RAY DIFFRACTION3PARAMED.LIGTOPO.DUMP
Software
*PLUS
Name: X-PLOR / Version: 3.8 / Classification: refinement
Refinement
*PLUS
Rfactor Rfree: 0.247
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 34 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.006
X-RAY DIFFRACTIONx_angle_deg1.4
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg24.6
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.3

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