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- PDB-2dej: Crystal Structure of galaktokinase from Pyrococcus horikoshii wit... -

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Basic information

Entry
Database: PDB / ID: 2dej
TitleCrystal Structure of galaktokinase from Pyrococcus horikoshii with AMP-PN and galactose
ComponentsProbable galactokinase
KeywordsTRANSFERASE / galactokinase / ADP analogue / galactose / Structural Genomics / NPPSFA / National Project on Protein Structural and Functional Analyses / RIKEN Structural Genomics/Proteomics Initiative / RSGI
Function / homology
Function and homology information


galactokinase / galactokinase activity / galactose metabolic process / magnesium ion binding / ATP binding / cytosol
Similarity search - Function
Galactokinase, bacterial / Galactokinase, N-terminal domain / Galactokinase, conserved site / Galactokinase galactose-binding signature / Galactokinase signature. / Galactokinase / Mevalonate/galactokinase / GHMP kinase, ATP-binding, conserved site / GHMP kinases putative ATP-binding domain. / GHMP kinase, C-terminal domain ...Galactokinase, bacterial / Galactokinase, N-terminal domain / Galactokinase, conserved site / Galactokinase galactose-binding signature / Galactokinase signature. / Galactokinase / Mevalonate/galactokinase / GHMP kinase, ATP-binding, conserved site / GHMP kinases putative ATP-binding domain. / GHMP kinase, C-terminal domain / GHMP kinases C terminal / GHMP kinase, C-terminal domain / GHMP kinase N-terminal domain / GHMP kinases N terminal domain / GHMP kinase, C-terminal domain superfamily / Ribosomal Protein S5; domain 2 - #10 / Ribosomal Protein S5; domain 2 / Ribosomal protein S5 domain 2-type fold, subgroup / Alpha-Beta Plaits / Ribosomal protein S5 domain 2-type fold / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
AMP PHOSPHORAMIDATE / alpha-D-galactopyranose / Galactokinase
Similarity search - Component
Biological speciesPyrococcus horikoshii (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 1.5 Å
AuthorsInagaki, E. / Sakamoto, K. / Shinkai, A. / Yokoyama, S. / RIKEN Structural Genomics/Proteomics Initiative (RSGI)
CitationJournal: To be Published
Title: Crystal Structure of galaktokinase from Pyrococcus horikoshii
Authors: Inagaki, E. / Sakamoto, K. / Shinkai, A. / Yokoyama, S.
History
DepositionFeb 10, 2006Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0May 1, 2007Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 11, 2017Group: Refinement description / Category: software
Revision 1.4Jul 29, 2020Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / pdbx_struct_conn_angle / struct_conn / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.5Oct 25, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 2.0May 27, 2026Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Non-polymer description / Refinement description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / chem_comp_atom / chem_comp_bond / entity / pdbx_distant_solvent_atoms / pdbx_entity_nonpoly / pdbx_entry_details / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_struct_conn_angle / refine / refine_hist / refine_ls_restr / refine_ls_shell / reflns / reflns_shell / struct_asym / struct_conn
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.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.pdbx_synonyms / _chem_comp.type / _chem_comp_bond.atom_id_1 / _chem_comp_bond.atom_id_2 / _chem_comp_bond.comp_id / _chem_comp_bond.pdbx_aromatic_flag / _chem_comp_bond.value_order / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_auth_comp_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.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_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 / _refine.B_iso_mean / _refine.details / _refine.ls_R_factor_R_free / _refine.ls_R_factor_all / _refine.ls_R_factor_obs / _refine.ls_number_reflns_all / _refine.pdbx_ls_sigma_F / _refine_hist.number_atoms_solvent / _refine_hist.number_atoms_total / _refine_hist.pdbx_number_atoms_protein / _refine_ls_shell.d_res_low / _reflns.number_all / _reflns.observed_criterion_sigma_F / _reflns_shell.number_unique_all / _reflns_shell.pdbx_diffrn_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Probable galactokinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)40,0284
Polymers39,3971
Non-polymers6313
Water6,071337
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)105.945, 38.997, 81.188
Angle α, β, γ (deg.)90.00, 109.60, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein Probable galactokinase / Galactose kinase


Mass: 39397.012 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pyrococcus horikoshii (archaea) / Plasmid: pET11a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21-CodonPlus(DE3)-RIL / References: UniProt: O58107, galactokinase
#2: Sugar ChemComp-GLA / alpha-D-galactopyranose / alpha-D-galactose / D-galactose / galactose / ALPHA D-GALACTOSE


Type: D-saccharide, alpha linking / Mass: 180.156 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C6H12O6
IdentifierTypeProgram
DGalpaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
a-D-galactopyranoseCOMMON NAMEGMML 1.0
a-D-GalpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GalSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#4: Chemical ChemComp-AN2 / AMP PHOSPHORAMIDATE


Mass: 426.216 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Formula: C10H16N6O9P2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 337 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationN

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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 Å3/Da / Density % sol: 38.64 %
Crystal growTemperature: 295 K / Method: vapor diffusion, sitting drop / pH: 6.3
Details: 2.5% PEG 4000, 50mM magnesium chloride, 0.1M MES, pH 6.3, VAPOR DIFFUSION, SITTING DROP, temperature 295K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL26B1 / Wavelength: 1 Å
DetectorType: RIGAKU RAXIS V / Detector: IMAGE PLATE / Date: Jul 16, 2005 / Details: mirrors
RadiationMonochromator: Si / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.45→30 Å / Num. obs: 53991 / % possible obs: 98.5 % / Observed criterion σ(I): -1.5 / Redundancy: 3 % / Rmerge(I) obs: 0.077 / Net I/σ(I): 14.4
Reflection shellResolution: 1.45→1.48 Å / Redundancy: 2.7 % / Rmerge(I) obs: 0.478 / Mean I/σ(I) obs: 2.3 / % possible all: 96.6

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Processing

Software
NameVersionClassification
REFMAC5.2.0005refinement
BSSdata collection
SCALEPACKdata scaling
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB ENTRY 2CZ9

2cz9


Resolution: 1.5→20 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.93 / SU B: 1.463 / SU ML: 0.057 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.087 / ESU R Free: 0.09 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.228 2535 5.1 %RANDOM
Rwork0.187 ---
obs0.189 47224 98.7 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 15.95 Å2
Baniso -1Baniso -2Baniso -3
1--0.43 Å20 Å2-0.47 Å2
2--0.26 Å20 Å2
3----0.15 Å2
Refinement stepCycle: LAST / Resolution: 1.5→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2749 0 40 337 3126
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.0222876
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.2941.9923882
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.9855347
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.83823.721129
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.10315515
X-RAY DIFFRACTIONr_dihedral_angle_4_deg14.6141518
X-RAY DIFFRACTIONr_chiral_restr0.0850.2423
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.022136
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.1940.21402
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3090.22037
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1260.2255
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1790.235
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.140.230
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.8671.51761
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.36622761
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.20931265
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it3.3444.51121
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.5→1.54 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.264 194 -
Rwork0.22 3423 -
obs--98.05 %

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