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- PDB-4iud: Crystal structure of an O2-tolerant [NiFe]-hydrogenase from Ralst... -

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Basic information

Entry
Database: PDB / ID: 4iud
TitleCrystal structure of an O2-tolerant [NiFe]-hydrogenase from Ralstonia eutropha in its as-isolated form with ascorbate - partly reduced state
Components(Uptake hydrogenase ...) x 2
KeywordsOXIDOREDUCTASE / [NiFe] hydrogenase / Knallgas bacteria / proteobacteria / aerobic hydrogen bacteria / hydrogen catalysis / metalloenzyme / metalloprotein catalytic center / nickel-iron cofactor / bimetallic / Ni-Fe active site / iron-sulfur cluster / [4Fe-3S] cluster / [3Fe-4S] cluster / [4Fe-4S] cluster / reduced state / oxidized state / oxygen-tolerant hydrogenase / membrane-bound
Function / homology
Function and homology information


hydrogenase (acceptor) / ferredoxin hydrogenase complex / [Ni-Fe] hydrogenase complex / hydrogenase (acceptor) activity / ferredoxin hydrogenase activity / anaerobic respiration / 3 iron, 4 sulfur cluster binding / nickel cation binding / 4 iron, 4 sulfur cluster binding / electron transfer activity ...hydrogenase (acceptor) / ferredoxin hydrogenase complex / [Ni-Fe] hydrogenase complex / hydrogenase (acceptor) activity / ferredoxin hydrogenase activity / anaerobic respiration / 3 iron, 4 sulfur cluster binding / nickel cation binding / 4 iron, 4 sulfur cluster binding / electron transfer activity / metal ion binding / plasma membrane
Similarity search - Function
Cytochrome-c3 Hydrogenase; Chain A, domain 2 / Cytochrome-c3 hydrogenase, C-terminal domain / NADH:ubiquinone oxidoreductase-like, 20kDa subunit / : / [NiFe]-hydrogenase, small subunit / Cytochrome-c3 hydrogenase, C-terminal / [NiFe]-hydrogenase, small subunit, C-terminal domain superfamily / NiFe/NiFeSe hydrogenase small subunit C-terminal / Nickel-dependent hydrogenases large subunit signature 1. / Nickel-dependent hydrogenases large subunit signature 2. ...Cytochrome-c3 Hydrogenase; Chain A, domain 2 / Cytochrome-c3 hydrogenase, C-terminal domain / NADH:ubiquinone oxidoreductase-like, 20kDa subunit / : / [NiFe]-hydrogenase, small subunit / Cytochrome-c3 hydrogenase, C-terminal / [NiFe]-hydrogenase, small subunit, C-terminal domain superfamily / NiFe/NiFeSe hydrogenase small subunit C-terminal / Nickel-dependent hydrogenases large subunit signature 1. / Nickel-dependent hydrogenases large subunit signature 2. / [NiFe]-hydrogenase, small subunit, N-terminal domain superfamily / Nickel-dependent hydrogenase, large subunit, nickel binding site / Nickel-dependent hydrogenase, large subunit / Nickel-dependent hydrogenase / Cytochrome-c3 Hydrogenase; chain B / Cytochrome-c3 Hydrogenase, chain B / Twin-arginine translocation pathway, signal sequence, bacterial/archaeal / NADH:ubiquinone oxidoreductase-like, 20kDa subunit / NADH ubiquinone oxidoreductase, 20 Kd subunit / [NiFe]-hydrogenase, large subunit / Twin arginine translocation (Tat) signal profile. / Twin-arginine translocation pathway, signal sequence / Few Secondary Structures / Irregular / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
FE3-S4 CLUSTER / NI-FE OXIDIZED ACTIVE CENTER / oxidized [Fe4-S3] cluster / IRON/SULFUR CLUSTER / Uptake hydrogenase large subunit / Uptake hydrogenase small subunit
Similarity search - Component
Biological speciesRalstonia eutropha (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.45 Å
AuthorsHammer, M. / Schmidt, A. / Frielingsdorf, S. / Fritsch, J. / Lenz, O. / Scheerer, P.
CitationJournal: Nat.Chem.Biol. / Year: 2014
Title: Reversible [4Fe-3S] cluster morphing in an O2-tolerant [NiFe] hydrogenase.
Authors: Frielingsdorf, S. / Fritsch, J. / Schmidt, A. / Hammer, M. / Lowenstein, J. / Siebert, E. / Pelmenschikov, V. / Jaenicke, T. / Kalms, J. / Rippers, Y. / Lendzian, F. / Zebger, I. / Teutloff, ...Authors: Frielingsdorf, S. / Fritsch, J. / Schmidt, A. / Hammer, M. / Lowenstein, J. / Siebert, E. / Pelmenschikov, V. / Jaenicke, T. / Kalms, J. / Rippers, Y. / Lendzian, F. / Zebger, I. / Teutloff, C. / Kaupp, M. / Bittl, R. / Hildebrandt, P. / Friedrich, B. / Lenz, O. / Scheerer, P.
History
DepositionJan 20, 2013Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 2, 2014Provider: repository / Type: Initial release
Revision 1.1May 14, 2014Group: Database references
Revision 1.2Nov 15, 2017Group: Refinement description / Category: software / Item: _software.name
Revision 1.3Sep 20, 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_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_alt_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.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_alt_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_alt_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.pdbx_leaving_atom_flag / _struct_conn.pdbx_ptnr1_label_alt_id / _struct_conn.pdbx_ptnr2_label_alt_id / _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
Revision 1.4Dec 6, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2
Revision 1.5Nov 27, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
L: Uptake hydrogenase large subunit
S: Uptake hydrogenase small subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)105,9018
Polymers104,6482
Non-polymers1,2536
Water17,691982
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area8790 Å2
ΔGint-97 kcal/mol
Surface area26580 Å2
MethodPISA
Unit cell
Length a, b, c (Å)73.775, 95.795, 120.679
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Uptake hydrogenase ... , 2 types, 2 molecules LS

#1: Protein Uptake hydrogenase large subunit / Hydrogenlyase / Membrane-bound hydrogenase large subunit / HOXG


Mass: 67263.195 Da / Num. of mol.: 1 / Fragment: UNP residues 1-603
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Ralstonia eutropha (bacteria) / Strain: ATCC 17699 / H16 / DSM 428 / Stanier 337 / Gene: hoxG, PHG002 / Production host: Ralstonia eutropha (bacteria)
Strain (production host): ATCC 17699 / H16 / DSM 428 / Stanier 337
References: UniProt: P31891, EC: 1.12.5.1
#2: Protein Uptake hydrogenase small subunit / Hydrogenlyase / Membrane-bound hydrogenase small subunit / HOXK


Mass: 37384.520 Da / Num. of mol.: 1 / Fragment: UNP residues 44-360
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Ralstonia eutropha (bacteria) / Strain: ATCC 17699 / H16 / DSM 428 / Stanier 337 / Gene: hoxK, PHG001 / Production host: Ralstonia eutropha (bacteria)
Strain (production host): ATCC 17699 / H16 / DSM 428 / Stanier 337
References: UniProt: P31892, EC: 1.12.5.1

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Non-polymers , 7 types, 988 molecules

#3: Chemical ChemComp-NFV / NI-FE OXIDIZED ACTIVE CENTER


Mass: 210.583 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3FeN2NiO2
#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#5: Chemical ChemComp-SF4 / IRON/SULFUR CLUSTER


Mass: 351.640 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe4S4
#6: Chemical ChemComp-F3S / FE3-S4 CLUSTER


Mass: 295.795 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe3S4
#7: Chemical ChemComp-S3F / oxidized [Fe4-S3] cluster


Mass: 335.574 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe4OS3
#8: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cl
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 982 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY

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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: 2.04 Å3/Da / Density % sol: 39.64 %
Crystal growTemperature: 282 K / Method: vapor diffusion, sitting drop / pH: 5.5
Details: 20-30% PEG3350, 100 mM Bis-Tris methane, pH 5.5, crystal soaked in ascorbate, VAPOR DIFFUSION, SITTING DROP, temperature 282K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: BESSY / Beamline: 14.2 / Wavelength: 0.91841 Å
DetectorType: RAYONIX MX-225 / Detector: CCD / Date: Jun 17, 2011 / Details: mirrors
RadiationMonochromator: double crystal Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.91841 Å / Relative weight: 1
ReflectionResolution: 1.45→34.42 Å / Num. obs: 150757 / % possible obs: 99.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 6.3 % / Biso Wilson estimate: 14.92 Å2 / Rmerge(I) obs: 0.061 / Rsym value: 0.061 / Net I/σ(I): 17.1
Reflection shellResolution: 1.45→1.53 Å / Redundancy: 4.7 % / Rmerge(I) obs: 0.699 / Mean I/σ(I) obs: 2.1 / Num. unique all: 21043 / Rsym value: 0.699 / % possible all: 96.3

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Processing

Software
NameVersionClassification
MAR345data collection
PHASERphasing
REFMAC5.6.0117refinement
XDSdata reduction
SCALAdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3RGW

3rgw


Resolution: 1.45→34.42 Å / Isotropic thermal model: ANISOTROPIC / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
RfactorNum. reflection% reflectionSelection details
Rfree0.16484 7567 5 %RANDOM
Rwork0.13457 ---
all0.1361 0 --
obs0.1361 143090 99.4 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 15.887 Å2
Baniso -1Baniso -2Baniso -3
1--0.04 Å20 Å2-0 Å2
2--0.03 Å2-0 Å2
3---0.01 Å2
Refinement stepCycle: LAST / Resolution: 1.45→34.42 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6750 0 34 982 7766
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.027207
X-RAY DIFFRACTIONr_bond_other_d0.0020.024919
X-RAY DIFFRACTIONr_angle_refined_deg1.3671.9649946
X-RAY DIFFRACTIONr_angle_other_deg1.3633.00112000
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.5325926
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.26223.675332
X-RAY DIFFRACTIONr_dihedral_angle_3_deg10.963151192
X-RAY DIFFRACTIONr_dihedral_angle_4_deg14.6791551
X-RAY DIFFRACTIONr_chiral_restr0.0740.21055
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0218086
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021489
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_rigid_bond_restr2.843312123
X-RAY DIFFRACTIONr_sphericity_free24.7375204
X-RAY DIFFRACTIONr_sphericity_bonded9.058512711
LS refinement shellResolution: 1.45→1.488 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.285 491 -
Rwork0.249 9519 -
obs--93.44 %

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