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- PDB-6jwv: Crystal structure of Plasmodium falciparum HPPK-DHPS A437G with S... -

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Basic information

Entry
Database: PDB / ID: 6jwv
TitleCrystal structure of Plasmodium falciparum HPPK-DHPS A437G with STZ-DHP
Components7,8-dihydro-6-hydroxymethylpterin pyrophosphokinase-dihydropteroate synthase
KeywordsTRANSFERASE / TIM barrel / kinase
Function / homology
Function and homology information


2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase activity / dihydropteroate synthase activity / mitochondrial envelope / folic acid biosynthetic process / tetrahydrofolate biosynthetic process / kinase activity / ATP binding / metal ion binding
Similarity search - Function
7,8-Dihydro-6-hydroxymethylpterin-pyrophosphokinase, HPPK / 7,8-Dihydro-6-hydroxymethylpterin-pyrophosphokinase HPPK superfamily / 7,8-dihydro-6-hydroxymethylpterin-pyrophosphokinase (HPPK) / Dihydropteroate synthase / Dihydropteroate synthase domain / Dihydropteroate synthase signature 2. / Pterin-binding domain / Pterin binding enzyme / Pterin-binding domain profile. / Dihydropteroate synthase-like
Similarity search - Domain/homology
ACETATE ION / ADENOSINE-5'-TRIPHOSPHATE / Chem-PH2 / Chem-XTZ / 7,8-dihydro-6-hydroxymethylpterin pyrophosphokinase-dihydropteroate synthase
Similarity search - Component
Biological speciesPlasmodium falciparum (malaria parasite P. falciparum)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.7 Å
Model detailsCrystal structure of Plasmodium falciparum HPPK-DHPS wild type with Pteroate
AuthorsChitnumsub, P. / Jaruwat, A. / Yuthavong, Y.
Funding support Thailand, 1items
OrganizationGrant numberCountry
Synchrotron Light Research Institute Thailand
CitationJournal: Febs J. / Year: 2020
Title: The structure of Plasmodium falciparum hydroxymethyldihydropterin pyrophosphokinase-dihydropteroate synthase reveals the basis of sulfa resistance.
Authors: Chitnumsub, P. / Jaruwat, A. / Talawanich, Y. / Noytanom, K. / Liwnaree, B. / Poen, S. / Yuthavong, Y.
History
DepositionApr 21, 2019Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Feb 12, 2020Provider: repository / Type: Initial release
Revision 1.1Aug 19, 2020Group: Database references / Derived calculations / Category: citation / citation_author / struct_conn
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.year / _citation_author.identifier_ORCID / _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.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
Revision 1.2Nov 22, 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: 7,8-dihydro-6-hydroxymethylpterin pyrophosphokinase-dihydropteroate synthase
B: 7,8-dihydro-6-hydroxymethylpterin pyrophosphokinase-dihydropteroate synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)174,02817
Polymers171,8872
Non-polymers2,14115
Water5,621312
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6230 Å2
ΔGint-71 kcal/mol
Surface area51110 Å2
MethodPISA
Unit cell
Length a, b, c (Å)98.891, 136.715, 138.698
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein 7,8-dihydro-6-hydroxymethylpterin pyrophosphokinase-dihydropteroate synthase / Dihydropteroate synthetase


Mass: 85943.461 Da / Num. of mol.: 2 / Fragment: HPPK-DHPS / Mutation: A437G
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Plasmodium falciparum (malaria parasite P. falciparum)
Gene: PPPK-DHPS / Plasmid: pET29a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 Rosetta(DE3)pLysS / References: UniProt: Q25704

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Non-polymers , 8 types, 327 molecules

#2: Chemical ChemComp-XTZ / 4-{[(2-amino-4-oxo-3,4,7,8-tetrahydropteridin-6-yl)methyl]amino}-N-(1,3-thiazol-2-yl)benzenesulfonamide


Mass: 432.480 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C16H16N8O3S2
#3: Chemical ChemComp-PH2 / 2-AMINO-6-HYDROXYMETHYL-7,8-DIHYDRO-3H-PTERIDIN-4-ONE


Mass: 195.179 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C7H9N5O2
#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3
#5: Chemical ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Comment: ATP, energy-carrying molecule*YM
#6: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Mg
#7: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#8: Chemical
ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C2H3O2
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 312 / 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: 2.73 Å3/Da / Density % sol: 54.9 % / Mosaicity: 0.53 °
Crystal growTemperature: 298 K / Method: microbatch / pH: 9
Details: 0.1 M bicine buffer pH 9.0, 0.5-0.6 M Ca acetate and 20%w/v PEG4000

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: NSRRC / Beamline: BL13B1 / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Nov 28, 2012
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.7→50 Å / Num. obs: 51879 / % possible obs: 99.7 % / Redundancy: 3.7 % / Rmerge(I) obs: 0.045 / Χ2: 0.949 / Net I/σ(I): 16.3
Reflection shell
Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique obsΧ2Diffraction-ID% possible all
2.7-2.83.70.3851120.945199.8
2.8-2.913.80.27751500.9361100
2.91-3.043.80.18850990.9561100
3.04-3.23.80.1351330.962199.8
3.2-3.43.80.08151780.917199.9
3.4-3.663.80.05251500.87199.8
3.66-4.033.80.0451840.957199.9
4.03-4.623.70.03451971.355199.7
4.62-5.813.60.02852461.012199.4
5.81-303.60.01554300.59198.9

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Processing

Software
NameVersionClassification
SCALEPACKdata scaling
REFMAC5.8.0135refinement
PDB_EXTRACT3.25data extraction
HKL-2000data reduction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6JWQ

6jwq


Resolution: 2.7→30 Å / Cor.coef. Fo:Fc: 0.914 / Cor.coef. Fo:Fc free: 0.868 / SU B: 9.915 / SU ML: 0.212 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.844 / ESU R Free: 0.351
Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.257 4712 10 %RANDOM
Rwork0.2059 ---
obs0.211 42308 90.3 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å
Displacement parametersBiso max: 120 Å2 / Biso mean: 46.656 Å2 / Biso min: 4.29 Å2
Baniso -1Baniso -2Baniso -3
1-1.15 Å20 Å2-0 Å2
2---0.74 Å20 Å2
3----0.41 Å2
Refinement stepCycle: final / Resolution: 2.7→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8955 0 136 312 9403
Biso mean--41.7 29.84 -
Num. residues----1083
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.0199222
X-RAY DIFFRACTIONr_bond_other_d00.026
X-RAY DIFFRACTIONr_angle_refined_deg1.51.98712439
X-RAY DIFFRACTIONr_angle_other_deg0.019312
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.46751065
X-RAY DIFFRACTIONr_dihedral_angle_2_deg41.56225.664452
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.517151786
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.9461535
X-RAY DIFFRACTIONr_chiral_restr0.0970.21430
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.026707
LS refinement shellResolution: 2.705→2.774 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.305 224 -
Rwork0.23 1852 -
all-2076 -
obs--55.07 %

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