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- PDB-1g4p: THIAMIN PHOSPHATE SYNTHASE -

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Basic information

Entry
Database: PDB / ID: 1g4p
TitleTHIAMIN PHOSPHATE SYNTHASE
ComponentsTHIAMIN PHOSPHATE SYNTHASE
KeywordsTRANSFERASE / THIAMIN BIOSYNTHESIS / TIM BARREL
Function / homology
Function and homology information


thiamine phosphate synthase / thiamine-phosphate diphosphorylase activity / thiamine diphosphate biosynthetic process / thiamine biosynthetic process / magnesium ion binding / cytoplasm
Similarity search - Function
Thiamine phosphate synthase / Thiamine phosphate synthase/TenI / Thiamine monophosphate synthase / Thiamin phosphate synthase superfamily / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
Chem-FQP / Thiamine-phosphate synthase
Similarity search - Component
Biological speciesBacillus subtilis (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2.5 Å
AuthorsPeapus, D.H. / Chiu, H.-J. / Campobasso, N. / Reddick, J.J. / Begley, T.P. / Ealick, S.E.
Citation
Journal: Biochemistry / Year: 2001
Title: Structural characterization of the enzyme-substrate, enzyme-intermediate, and enzyme-product complexes of thiamin phosphate synthase.
Authors: Peapus, D.H. / Chiu, H.J. / Campobasso, N. / Reddick, J.J. / Begley, T.P. / Ealick, S.E.
#1: Journal: Biochemistry / Year: 2001
Title: Mechanistic Studies on Thiamin Phosphate Synthase: Evidence for a Dissociative Mechanism
Authors: Reddick, J.J. / Nicewonger, R. / Begley, T.P.
#2: Journal: Biochemistry / Year: 1999
Title: Crystal Structure of Thiamin Phosphate Synthase from Bacillus subtilis at 1.25A Resolution
Authors: Chiu, H.-J. / Reddick, J.J. / Begley, T.P. / Ealick, S.E.
#3: Journal: J.BACTERIOL. / Year: 1997
Title: CHARACTERIZATION OF THE BACILLUS SUBTILIS THIC OPERON INVOLVED IN THIAMINE BIOSYNTHESIS
Authors: ZHANG, Y. / TAYLOR, S.V. / CHIU, H.-J. / BEGLEY, T.P.
History
DepositionOct 27, 2000Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 26, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / 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_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _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.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_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: THIAMIN PHOSPHATE SYNTHASE
B: THIAMIN PHOSPHATE SYNTHASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,0726
Polymers48,3172
Non-polymers7554
Water3,153175
1
A: THIAMIN PHOSPHATE SYNTHASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)24,5363
Polymers24,1581
Non-polymers3772
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: THIAMIN PHOSPHATE SYNTHASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)24,5363
Polymers24,1581
Non-polymers3772
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)76.280, 76.280, 139.590
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number96
Space group name H-MP43212

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Components

#1: Protein THIAMIN PHOSPHATE SYNTHASE


Mass: 24158.496 Da / Num. of mol.: 2 / Mutation: S130A
Source method: isolated from a genetically manipulated source
Details: COMPLEXED WITH 4-AMINO-2-TRIFLUOROMETHYL-5-HYDROXYMETHYLPYRIMIDINE PYROPHOSPHATE
Source: (gene. exp.) Bacillus subtilis (bacteria) / Gene: THIC / Plasmid: PYZC6927 / Production host: Escherichia coli (E. coli) / Strain (production host): SG13009 WITH PREP4 / References: UniProt: P39594, thiamine phosphate synthase
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-FQP / 4-AMINO-2-TRIFLUOROMETHYL-5-HYDROXYMETHYLPYRIMIDINE PYROPHOSPHATE


Mass: 353.086 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H8F3N3O7P2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 175 / 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: 2.01 Å3/Da / Density % sol: 38.22 %
Crystal growTemperature: 277 K / Method: hanging drop vapor diffusion with micro seeding / pH: 7.5
Details: 75mM TRIS-HCl, 75 mM MgCl2, 21-22% PEG4000, pH 7.5, hanging drop vapor diffusion with micro seeding, temperature 277K
Crystal grow
*PLUS
Temperature: 4 ℃ / Method: vapor diffusion, sitting drop / Details: Chiu, H.-J., (1999) Biochemistry, 38, 6460.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
120 mg/mlprotein1drop
250 mMTris-HCl1drop
32 mMdithiothreitol1drop
475 mMTris-HCl1reservoir
575 mM1reservoirMgCl2
624-26 %(v/v)PEG40001reservoir
72 mMbeta-mercaptoethanol1reservoir
85 mMbeta-octylglucopyranoside1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Wavelength: 1.5417
DetectorType: SAXII / Detector: CCD / Date: Nov 1, 1998
RadiationMonochromator: Ni filter / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5417 Å / Relative weight: 1
ReflectionResolution: 2.5→53.94 Å / Num. obs: 14289 / % possible obs: 95.7 % / Redundancy: 8.1 % / Biso Wilson estimate: 17.8 Å2 / Rmerge(I) obs: 0.047 / Net I/σ(I): 7.1
Reflection
*PLUS
Num. obs: 14985 / % possible obs: 100 % / Rmerge(I) obs: 0.117
Reflection shell
*PLUS
% possible obs: 99.8 % / Rmerge(I) obs: 0.32 / Mean I/σ(I) obs: 1.2

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Processing

Software
NameVersionClassification
CNSrefinement
MOSFLMdata reduction
CCP4(SCALA)data scaling
CNSphasing
RefinementStarting model: PDB Entry 1G4E

1g4e


Resolution: 2.5→53.94 Å / Rfactor Rfree error: 0.011 / Data cutoff high absF: 257109.39 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / Stereochemistry target values: Maximum Likelihood Function
RfactorNum. reflection% reflectionSelection details
Rfree0.295 713 5 %RANDOM
Rwork0.219 ---
obs0.219 14289 95.7 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 32.01 Å2 / ksol: 0.361 e/Å3
Displacement parametersBiso mean: 10.4 Å2
Baniso -1Baniso -2Baniso -3
1--0.69 Å20 Å20 Å2
2---0.69 Å20 Å2
3---1.38 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.41 Å0.28 Å
Luzzati d res low-5 Å
Luzzati sigma a0.3 Å0.2 Å
Refinement stepCycle: LAST / Resolution: 2.5→53.94 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3254 0 44 175 3473
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_dihedral_angle_d21.6
X-RAY DIFFRACTIONc_improper_angle_d0.76
X-RAY DIFFRACTIONc_mcbond_it1.241.5
X-RAY DIFFRACTIONc_mcangle_it2.022
X-RAY DIFFRACTIONc_scbond_it22
X-RAY DIFFRACTIONc_scangle_it3.022.5
LS refinement shellResolution: 2.5→2.66 Å / Rfactor Rfree error: 0.03 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.315 113 5.2 %
Rwork0.23 2057 -
obs--89.4 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER.PARAMWATER.TOP
X-RAY DIFFRACTION3ION.PARAMION.TOP
X-RAY DIFFRACTION4CF3HQPPP.PARAMCF3HQPPP.TOP
Software
*PLUS
Name: CNS / Version: 1 / Classification: refinement
Refinement
*PLUS
% reflection Rfree: 5 % / Rfactor obs: 0.207 / Rfactor Rfree: 0.274
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 10.4 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg21.6
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.76
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: 0.315 / % reflection Rfree: 5.2 % / Rfactor Rwork: 0.23

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