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- PDB-1wob: Structure of a loop6 hinge mutant of Plasmodium falciparum Triose... -

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Basic information

Entry
Database: PDB / ID: 1wob
TitleStructure of a loop6 hinge mutant of Plasmodium falciparum Triosephosphate Isomerase, W168F, complexed to sulfate
ComponentsTriosephosphate isomerase
KeywordsISOMERASE / Triosephosphate Isomerase / loop6 / sulfate / W168F
Function / homology
Function and homology information


triose-phosphate isomerase / triose-phosphate isomerase activity / gluconeogenesis / glycolytic process / identical protein binding
Similarity search - Function
Triosephosphate isomerase, bacterial/eukaryotic / Triosephosphate isomerase, active site / Triosephosphate isomerase active site. / Triosephosphate isomerase / Triosephosphate isomerase superfamily / Triosephosphate isomerase / Triosephosphate isomerase (TIM) family profile. / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel ...Triosephosphate isomerase, bacterial/eukaryotic / Triosephosphate isomerase, active site / Triosephosphate isomerase active site. / Triosephosphate isomerase / Triosephosphate isomerase superfamily / Triosephosphate isomerase / Triosephosphate isomerase (TIM) family profile. / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
Triosephosphate isomerase
Similarity search - Component
Biological speciesPlasmodium falciparum (malaria parasite P. falciparum)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.8 Å
AuthorsEaazhisai, K. / Balaram, H. / Balaram, P. / Murthy, M.R.N.
CitationJournal: J.Mol.Biol. / Year: 2004
Title: Structures of Unliganded and Inhibitor Complexes of W168F, a Loop6 Hinge Mutant of Plasmodium falciparum Triosephosphate Isomerase: Observation of an Intermediate Position of Loop6
Authors: Eaazhisai, K. / Balaram, H. / Balaram, P. / Murthy, M.R.N.
History
DepositionAug 12, 2004Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 26, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 10, 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 1.4Oct 25, 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

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Assembly

Deposited unit
A: Triosephosphate isomerase
B: Triosephosphate isomerase
C: Triosephosphate isomerase
D: Triosephosphate isomerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)112,2198
Polymers111,8354
Non-polymers3844
Water2,648147
1
A: Triosephosphate isomerase
B: Triosephosphate isomerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)56,1104
Polymers55,9172
Non-polymers1922
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3880 Å2
ΔGint-56 kcal/mol
Surface area19570 Å2
MethodPISA
2
C: Triosephosphate isomerase
D: Triosephosphate isomerase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)56,1104
Polymers55,9172
Non-polymers1922
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3870 Å2
ΔGint-56 kcal/mol
Surface area19550 Å2
MethodPISA
Unit cell
Length a, b, c (Å)50.670, 107.070, 181.060
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein
Triosephosphate isomerase / TIM


Mass: 27958.703 Da / Num. of mol.: 4 / Mutation: A163V/W168F
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Plasmodium falciparum (malaria parasite P. falciparum)
Production host: Escherichia coli (E. coli) / Strain (production host): AA200 / References: UniProt: Q07412, triose-phosphate isomerase
#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: SO4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 147 / 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: 2.169 Å3/Da / Density % sol: 41.1 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 8
Details: pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.8→20 Å / Num. all: 25154 / Num. obs: 24778 / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.3 % / Rmerge(I) obs: 0.106 / Net I/σ(I): 5.8
Reflection shellResolution: 2.8→2.9 Å / Redundancy: 3 % / Rmerge(I) obs: 0.319 / Mean I/σ(I) obs: 2 / % possible all: 98.6

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1YDV

1ydv


Resolution: 2.8→20 Å / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflectionSelection details
Rfree0.222 2362 RANDOM
Rwork0.181 --
obs0.181 20988 -
all-23350 -
Displacement parametersBiso mean: 31.1 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.34 Å0.28 Å
Luzzati d res low-5 Å
Luzzati sigma a0.39 Å0.33 Å
Refinement stepCycle: LAST / Resolution: 2.8→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7800 0 20 147 7967
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_dihedral_angle_d22
X-RAY DIFFRACTIONc_improper_angle_d0.69
LS refinement shellResolution: 2.8→2.97 Å / Rfactor Rfree error: 0.014
RfactorNum. reflection% reflection
Rfree0.281 387 -
Rwork0.254 --
obs-3232 88.2 %

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