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- PDB-2qtc: E. coli Pyruvate dehydrogenase E1 component E401K mutant with pho... -

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Basic information

Entry
Database: PDB / ID: 2qtc
TitleE. coli Pyruvate dehydrogenase E1 component E401K mutant with phosphonolactylthiamin diphosphate
ComponentsPyruvate dehydrogenase E1 component
KeywordsOXIDOREDUCTASE / pyruvate dehydrogenase / thiamin diphosphate / Glycolysis / Magnesium / Metal-binding / Thiamine pyrophosphate
Function / homology
Function and homology information


: / pyruvate dehydrogenase activity / pyruvate dehydrogenase (acetyl-transferring) / pyruvate dehydrogenase (acetyl-transferring) activity / pyruvate catabolic process / pyruvate dehydrogenase complex / thiamine pyrophosphate binding / small molecule binding / molecular adaptor activity / magnesium ion binding ...: / pyruvate dehydrogenase activity / pyruvate dehydrogenase (acetyl-transferring) / pyruvate dehydrogenase (acetyl-transferring) activity / pyruvate catabolic process / pyruvate dehydrogenase complex / thiamine pyrophosphate binding / small molecule binding / molecular adaptor activity / magnesium ion binding / protein homodimerization activity / identical protein binding / membrane / cytosol
Similarity search - Function
Pyruvate dehydrogenase E1 component, N-terminal / Pyruvate dehydrogenase E1 component, middle domain / Pyruvate dehydrogenase E1 component middle domain / Pyruvate dehydrogenase E1 component / Transketolase, thiamine diphosphate binding domain / Transketolase, N-terminal / Rossmann fold - #920 / Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II / Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains / Thiamin diphosphate-binding fold ...Pyruvate dehydrogenase E1 component, N-terminal / Pyruvate dehydrogenase E1 component, middle domain / Pyruvate dehydrogenase E1 component middle domain / Pyruvate dehydrogenase E1 component / Transketolase, thiamine diphosphate binding domain / Transketolase, N-terminal / Rossmann fold - #920 / 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
Chem-TDK / Pyruvate dehydrogenase E1 component
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / DIFFERENCE FOURIER / Resolution: 1.77 Å
AuthorsFurey, W. / Arjunan, P. / Chandrasekhar, K.
CitationJournal: J.Biol.Chem. / Year: 2007
Title: A Dynamic Loop at the Active Center of the Escherichia coli Pyruvate Dehydrogenase Complex E1 Component Modulates Substrate Utilization and Chemical Communication with the E2 Component
Authors: Kale, S. / Arjunan, P. / Furey, W. / Jordan, F.
History
DepositionAug 1, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 14, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Feb 15, 2012Group: Structure summary
Revision 1.3Oct 25, 2017Group: Refinement description / Category: software
Revision 1.4Aug 30, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / 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.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.value / _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 / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Pyruvate dehydrogenase E1 component
B: Pyruvate dehydrogenase E1 component
hetero molecules


Theoretical massNumber of molelcules
Total (without water)200,4906
Polymers199,3142
Non-polymers1,1754
Water7,098394
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area12570 Å2
MethodPISA
Unit cell
Length a, b, c (Å)81.610, 142.110, 82.140
Angle α, β, γ (deg.)90.000, 102.680, 90.000
Int Tables number4
Space group name H-MP1211
DetailsThe two molecules in the asymmetric unit constitute the biological unit that contains a noncrystallographic twofold axis.

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Components

#1: Protein Pyruvate dehydrogenase E1 component


Mass: 99657.234 Da / Num. of mol.: 2 / Mutation: E401K
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: aceE / Plasmid: pGS878 / Production host: Escherichia coli (E. coli) / Strain (production host): JRG 3456
References: UniProt: P0AFG8, pyruvate dehydrogenase (acetyl-transferring)
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-TDK / 3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-2-{(1S)-1-HYDROXY-1-[(R)-HYDROXY(METHOXY)PHOSPHORYL]ETHYL}-5-(2-{[(S)-HYDROXY(PHOSPHONOOXY)PHOSPHORYL]OXY}ETHYL)-4-METHYL-1,3-THIAZOL-3-IUM / 2-PHOSPHONOLACTYLTHIAMIN DIPHOSPHATE


Mass: 563.373 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C15H26N4O11P3S
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 394 / 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: 2.33 Å3/Da / Density % sol: 47.24 %
Crystal growTemperature: 295 K / Method: vapor diffusion, sitting drop / pH: 7.05
Details: PEG 2000 monomethyl ether, proponal, sodium azide, hepes buffer, magnesium chloride, phosphonolactylthiamin diphosphate, pH 7.05, Vapour diffusion, temperature 295K, VAPOR DIFFUSION, SITTING DROP

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 22-BM / Wavelength: 1 Å
DetectorType: MARMOSAIC 225 mm CCD / Detector: CCD / Date: Dec 3, 2005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.77→47.53 Å / Num. all: 170761 / Num. obs: 160246 / % possible obs: 96.7 % / Observed criterion σ(I): 0 / Redundancy: 3.5 % / Biso Wilson estimate: 18.9 Å2 / Rmerge(I) obs: 0.112 / Rsym value: 0.112 / Net I/σ(I): 16.5
Reflection shellResolution: 1.77→1.83 Å / Redundancy: 2.8 % / Rmerge(I) obs: 0.415 / Mean I/σ(I) obs: 2.5 / Num. unique all: 15740 / Rsym value: 0.415 / % possible all: 89.4

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Processing

Software
NameVersionClassificationNB
CNS1.1refinement
PDB_EXTRACT3data extraction
MAR345data collection
HKL-2000data reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: DIFFERENCE FOURIER
Starting model: PDB ENTRY 2IEA

2iea


Resolution: 1.77→47.53 Å / Rfactor Rfree error: 0.003 / Data cutoff high absF: 425090.062 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.255 8037 5 %RANDOM
Rwork0.225 ---
obs0.232 160246 97.1 %-
all-170761 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 31.334 Å2 / ksol: 0.336 e/Å3
Displacement parametersBiso mean: 22.4 Å2
Baniso -1Baniso -2Baniso -3
1--1.55 Å20 Å20.64 Å2
2---0.37 Å20 Å2
3---1.92 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.27 Å0.24 Å
Luzzati d res low-5 Å
Luzzati sigma a0.24 Å0.2 Å
Refinement stepCycle: LAST / Resolution: 1.77→47.53 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12682 0 70 394 13146
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.012
X-RAY DIFFRACTIONc_angle_deg1.6
X-RAY DIFFRACTIONc_dihedral_angle_d22.6
X-RAY DIFFRACTIONc_improper_angle_d1.01
X-RAY DIFFRACTIONc_mcbond_it0.2241.5
X-RAY DIFFRACTIONc_mcangle_it0.4162
X-RAY DIFFRACTIONc_scbond_it0.1892
X-RAY DIFFRACTIONc_scangle_it0.3252.5
LS refinement shellResolution: 1.77→1.88 Å / Rfactor Rfree error: 0.01 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.329 1117 5 %
Rwork0.3 21348 -
all-22465 -
obs-22465 76.4 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.param
X-RAY DIFFRACTION3plt.param

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