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- PDB-4kxw: Human transketolase in covalent complex with donor ketose D-xylul... -

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Basic information

Entry
Database: PDB / ID: 4kxw
TitleHuman transketolase in covalent complex with donor ketose D-xylulose-5-phosphate, crystal 2
ComponentsTransketolase
KeywordsTRANSFERASE / thiamin diphosphate / enzyme catalysis / pentose phosphate pathway
Function / homology
Function and homology information


D-xylulose 5-phosphate biosynthetic process / Insulin effects increased synthesis of Xylulose-5-Phosphate / Pentose phosphate pathway / transketolase / transketolase activity / pentose-phosphate shunt, non-oxidative branch / pentose-phosphate shunt / NFE2L2 regulates pentose phosphate pathway genes / regulation of growth / glyceraldehyde-3-phosphate biosynthetic process ...D-xylulose 5-phosphate biosynthetic process / Insulin effects increased synthesis of Xylulose-5-Phosphate / Pentose phosphate pathway / transketolase / transketolase activity / pentose-phosphate shunt, non-oxidative branch / pentose-phosphate shunt / NFE2L2 regulates pentose phosphate pathway genes / regulation of growth / glyceraldehyde-3-phosphate biosynthetic process / thiamine pyrophosphate binding / peroxisome / vesicle / nuclear body / calcium ion binding / endoplasmic reticulum membrane / magnesium ion binding / protein homodimerization activity / extracellular exosome / nucleoplasm / cytosol
Similarity search - Function
: / Transketolase, C-terminal domain / Transketolase, N-terminal / : / Transketolase, thiamine diphosphate binding domain / Transketolase signature 1. / Transketolase binding site / Transketolase signature 2. / Transketolase, C-terminal domain / Rossmann fold - #920 ...: / Transketolase, C-terminal domain / Transketolase, N-terminal / : / Transketolase, thiamine diphosphate binding domain / Transketolase signature 1. / Transketolase binding site / Transketolase signature 2. / Transketolase, C-terminal domain / Rossmann fold - #920 / Transketolase-like, pyrimidine-binding domain / Transketolase, pyrimidine binding domain / Transketolase, pyrimidine binding domain / Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II / Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains / Thiamin diphosphate-binding fold / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
D-XYLITOL-5-PHOSPHATE / THIAMINE DIPHOSPHATE / Transketolase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 0.97 Å
AuthorsNeumann, P. / Luedtke, S. / Ficner, R. / Tittmann, K.
CitationJournal: Nat Chem / Year: 2013
Title: Sub-angstrom-resolution crystallography reveals physical distortions that enhance reactivity of a covalent enzymatic intermediate.
Authors: Ludtke, S. / Neumann, P. / Erixon, K.M. / Leeper, F. / Kluger, R. / Ficner, R. / Tittmann, K.
History
DepositionMay 28, 2013Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 21, 2013Provider: repository / Type: Initial release
Revision 1.1Sep 4, 2013Group: Database references
Revision 1.2Nov 15, 2017Group: Refinement description / Category: software / Item: _software.name
Revision 1.3Sep 4, 2019Group: Data collection / Derived calculations / Category: reflns / struct_conn
Item: _reflns.pdbx_Rsym_value / _struct_conn.pdbx_leaving_atom_flag
Revision 2.0Aug 4, 2021Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / atom_site_anisotrop ...atom_site / atom_site_anisotrop / chem_comp / entity / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site_anisotrop.U[1][1] / _atom_site_anisotrop.U[1][2] / _atom_site_anisotrop.U[1][3] / _atom_site_anisotrop.U[2][2] / _atom_site_anisotrop.U[2][3] / _atom_site_anisotrop.U[3][3] / _atom_site_anisotrop.pdbx_auth_atom_id / _atom_site_anisotrop.pdbx_auth_comp_id / _atom_site_anisotrop.pdbx_label_atom_id / _atom_site_anisotrop.pdbx_label_comp_id / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _pdbx_entity_nonpoly.comp_id / _pdbx_entity_nonpoly.name / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _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_ref_seq_dif.details / _struct_site.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id / _struct_site_gen.auth_comp_id / _struct_site_gen.label_comp_id
Revision 2.1Sep 20, 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: Transketolase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)71,32918
Polymers69,6471
Non-polymers1,68217
Water17,348963
1
A: Transketolase
hetero molecules

A: Transketolase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)142,65836
Polymers139,2952
Non-polymers3,36334
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,y,-z1
Buried area15660 Å2
ΔGint-5 kcal/mol
Surface area39250 Å2
MethodPISA
Unit cell
Length a, b, c (Å)113.756, 86.017, 72.994
Angle α, β, γ (deg.)90.00, 125.46, 90.00
Int Tables number5
Space group name H-MC121
Components on special symmetry positions
IDModelComponents
11A-7281-

HOH

21A-7332-

HOH

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Transketolase / TK


Mass: 69647.461 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TKT / Plasmid: pET-28a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P29401, transketolase

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Non-polymers , 6 types, 980 molecules

#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 12 / Source method: obtained synthetically / Formula: C2H6O2
#4: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#5: Chemical ChemComp-TPP / THIAMINE DIPHOSPHATE


Mass: 425.314 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H19N4O7P2S
#6: Chemical ChemComp-DX5 / D-XYLITOL-5-PHOSPHATE / D-HYLITOL-5-PHOSPHATE


Mass: 232.126 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C5H13O8P
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 963 / Source method: isolated from a natural source / Formula: H2O

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Details

Nonpolymer detailsDX5 A1016 IS A HYDROLYZED D-XYULOSE-5-PHOSPHATE COVALENTLY LINKED TO TDP A1015

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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: 2.13 Å3/Da / Density % sol: 42.3 %
Crystal growTemperature: 279 K / Method: vapor diffusion, hanging drop / pH: 7.9
Details: Reservoir mixture of 13.5-15 % PEG 6000 (w/v), 4% PEG 400 (v/v), 2 % glycerol (v/v) , pH 7.9, VAPOR DIFFUSION, HANGING DROP, temperature 279.0K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-4 / Wavelength: 0.93939 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Nov 22, 2011 / Details: mirrors
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.93939 Å / Relative weight: 1
ReflectionResolution: 0.97→30 Å / Num. all: 312019 / Num. obs: 305775 / % possible obs: 92.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 3.3 % / Biso Wilson estimate: 10.555 Å2 / Rmerge(I) obs: 0.047 / Net I/σ(I): 14.23
Reflection shell
Resolution (Å)Rmerge(I) obsMean I/σ(I) obsNum. measured obsNum. unique obsDiffraction-ID% possible all
0.97-1.040.4372.7412985352418178.2
1.04-1.120.2425.5413282246940193.3
1.12-1.270.1269.3218471764947194.7
1.27-2.510.05319.15476723128106197.3
2.51-3.130.04141.59594819480199.2
3.13-3.750.03152.42228794248199.4
3.75-4.370.02458.48101952171198.9
4.37-140.02163.04166453611197.5
14-170.01564.8617646190.2
17-500.01465.2416852172.2

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Processing

Software
NameVersionClassificationNB
XSCALEdata scaling
SHELXrefinement
PDB_EXTRACT3.11data extraction
DNAdata collection
XDSdata reduction
PHENIXphasing
SHELXLrefinement
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB ENTRY 3MOS

3mos


Resolution: 0.97→30 Å / Num. parameters: 58206 / Num. restraintsaints: 62846 / Occupancy max: 1 / Occupancy min: 0.03 / Cross valid method: FREE R / σ(F): 0 / σ(I): 0 / Stereochemistry target values: ENGH AND HUBER
RfactorNum. reflection% reflectionSelection details
Rfree0.121 6241 2 %RANDOM
Rwork0.0952 ---
all0.0987 305775 --
obs0.0952 305775 92.6 %-
Solvent computationSolvent model: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-228
Displacement parametersBiso max: 229.73 Å2 / Biso mean: 15.9484 Å2 / Biso min: 2.85 Å2
Refinement stepCycle: LAST / Resolution: 0.97→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4752 0 100 963 5815
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.014
X-RAY DIFFRACTIONs_angle_d311
X-RAY DIFFRACTIONs_similar_dist0
X-RAY DIFFRACTIONs_from_restr_planes0
X-RAY DIFFRACTIONs_zero_chiral_vol6
X-RAY DIFFRACTIONs_non_zero_chiral_vol6
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.11
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt0.022
X-RAY DIFFRACTIONs_similar_adp_cmpnt0
X-RAY DIFFRACTIONs_approx_iso_adps0.132

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