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- PDB-4wna: Structure of the Nitrogenase MoFe Protein from Azotobacter vinela... -

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Basic information

Entry
Database: PDB / ID: 4wna
TitleStructure of the Nitrogenase MoFe Protein from Azotobacter vinelandii Pressurized with Xenon
Components(Nitrogenase molybdenum-iron protein ...) x 2
Keywordsoxidoreductase/oxidoreductase inhibitor / xenon / MoFe protein / nitrogenase / substrate access / oxidoreductase-oxidoreductase inhibitor complex
Function / homology
Function and homology information


molybdenum-iron nitrogenase complex / nitrogenase / nitrogenase activity / nitrogen fixation / iron-sulfur cluster binding / ATP binding / metal ion binding
Similarity search - Function
Nitrogenase Molybdenum-iron Protein, subunit B, domain 4 / Nitrogenase Molybdenum-iron Protein, subunit B; domain 4 / Nitrogenase molybdenum-iron protein beta chain, N-terminal / Domain of unknown function (DUF3364) / Nitrogenase molybdenum-iron protein alpha chain / Nitrogenase molybdenum-iron protein beta chain / Nitrogenase component 1, alpha chain / Nitrogenase component 1, conserved site / Nitrogenases component 1 alpha and beta subunits signature 2. / Nitrogenases component 1 alpha and beta subunits signature 1. ...Nitrogenase Molybdenum-iron Protein, subunit B, domain 4 / Nitrogenase Molybdenum-iron Protein, subunit B; domain 4 / Nitrogenase molybdenum-iron protein beta chain, N-terminal / Domain of unknown function (DUF3364) / Nitrogenase molybdenum-iron protein alpha chain / Nitrogenase molybdenum-iron protein beta chain / Nitrogenase component 1, alpha chain / Nitrogenase component 1, conserved site / Nitrogenases component 1 alpha and beta subunits signature 2. / Nitrogenases component 1 alpha and beta subunits signature 1. / Nitrogenase/oxidoreductase, component 1 / : / Nitrogenase component 1 type Oxidoreductase / Nitrogenase molybdenum iron protein domain / Up-down Bundle / Rossmann fold / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
FE(8)-S(7) CLUSTER / : / 3-HYDROXY-3-CARBOXY-ADIPIC ACID / Chem-ICS / XENON / Nitrogenase molybdenum-iron protein alpha chain / Nitrogenase molybdenum-iron protein beta chain
Similarity search - Component
Biological speciesAzotobacter vinelandii (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsMorrison, C.N. / Hoy, J.A. / Zhang, L. / Einsle, O. / Rees, D.C.
Funding support United States, European Union, Germany, 5items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM45162 United States
Howard Hughes Medical Institute (HHMI) United States
European Research Council (ERC)310656European Union
German Research Foundation (DFG)Ei-520/7 Germany
German Research Foundation (DFG)IRTG 1478 Germany
CitationJournal: Biochemistry / Year: 2015
Title: Substrate Pathways in the Nitrogenase MoFe Protein by Experimental Identification of Small Molecule Binding Sites.
Authors: Morrison, C.N. / Hoy, J.A. / Zhang, L. / Einsle, O. / Rees, D.C.
History
DepositionOct 11, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 18, 2015Provider: repository / Type: Initial release
Revision 1.1Apr 1, 2015Group: Database references
Revision 1.2Sep 13, 2017Group: Advisory / Author supporting evidence ...Advisory / Author supporting evidence / Database references / Derived calculations / Source and taxonomy
Category: citation / entity_src_gen ...citation / entity_src_gen / pdbx_audit_support / pdbx_struct_oper_list / pdbx_validate_close_contact
Item: _citation.journal_id_CSD / _entity_src_gen.pdbx_alt_source_flag ..._citation.journal_id_CSD / _entity_src_gen.pdbx_alt_source_flag / _pdbx_audit_support.funding_organization / _pdbx_struct_oper_list.symmetry_operation
Revision 1.3Sep 27, 2017Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.4Nov 20, 2019Group: Author supporting evidence / Category: pdbx_audit_support
Item: _pdbx_audit_support.country / _pdbx_audit_support.funding_organization
Revision 1.5Dec 27, 2023Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn
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_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_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_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_conn.ptnr2_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Nitrogenase molybdenum-iron protein alpha chain
B: Nitrogenase molybdenum-iron protein beta chain
C: Nitrogenase molybdenum-iron protein alpha chain
D: Nitrogenase molybdenum-iron protein beta chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)234,02718
Polymers229,7984
Non-polymers4,22914
Water22,9871276
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area32380 Å2
ΔGint-228 kcal/mol
Surface area57710 Å2
MethodPISA
Unit cell
Length a, b, c (Å)77.123, 129.780, 107.543
Angle α, β, γ (deg.)90.00, 108.94, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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Nitrogenase molybdenum-iron protein ... , 2 types, 4 molecules ACBD

#1: Protein Nitrogenase molybdenum-iron protein alpha chain / Dinitrogenase / Nitrogenase component I


Mass: 55363.043 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Azotobacter vinelandii (bacteria) / Gene: nifD / Production host: Azotobacter vinelandii DJ (bacteria) / References: UniProt: P07328, nitrogenase
#2: Protein Nitrogenase molybdenum-iron protein beta chain / Dinitrogenase / Nitrogenase component I


Mass: 59535.879 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Azotobacter vinelandii (bacteria) / Gene: nifK / Production host: Azotobacter vinelandii DJ (bacteria) / References: UniProt: P07329, nitrogenase

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Non-polymers , 6 types, 1290 molecules

#3: Chemical ChemComp-HCA / 3-HYDROXY-3-CARBOXY-ADIPIC ACID


Mass: 206.150 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: C7H10O7
#4: Chemical ChemComp-ICS / iron-sulfur-molybdenum cluster with interstitial carbon


Mass: 787.451 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: CFe7MoS9
#5: Chemical ChemComp-CLF / FE(8)-S(7) CLUSTER


Mass: 671.215 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: Fe8S7
#6: Chemical
ChemComp-XE / XENON


Mass: 131.293 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Xe
#7: Chemical ChemComp-FE / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Fe
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1276 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.18 Å3/Da / Density % sol: 43.58 %
Crystal growTemperature: 297 K / Method: vapor diffusion, sitting drop
Details: PEG 6000, sodium chloride, xylitol, imidazole/malate, spermine, Zwittergent

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU MICROMAX-007 HF / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Nov 14, 2001
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→101.72 Å / Num. obs: 133045 / % possible obs: 98.7 % / Redundancy: 3.5 % / Net I/σ(I): 9.2

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Processing

SoftwareName: REFMAC / Version: 5.8.0073 / Classification: refinement
RefinementResolution: 2→101.72 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.929 / SU B: 4.522 / SU ML: 0.123 / Cross valid method: THROUGHOUT / ESU R: 0.19 / ESU R Free: 0.166 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21869 6678 5 %RANDOM
Rwork0.16728 ---
obs0.16985 126310 98.62 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 23.966 Å2
Baniso -1Baniso -2Baniso -3
1-2.02 Å2-0 Å20.55 Å2
2---0.2 Å2-0 Å2
3----1.78 Å2
Refinement stepCycle: LAST / Resolution: 2→101.72 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms15929 0 102 1276 17307
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.01916637
X-RAY DIFFRACTIONr_bond_other_d00.0215567
X-RAY DIFFRACTIONr_angle_refined_deg1.2911.98822998
X-RAY DIFFRACTIONr_angle_other_deg1.277336005
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.83752030
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.15524.098776
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.763152923
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.7581597
X-RAY DIFFRACTIONr_chiral_restr0.0770.22386
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.02118579
X-RAY DIFFRACTIONr_gen_planes_other00.023802
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_it2.3172.2328024
X-RAY DIFFRACTIONr_mcbond_other2.3162.2328023
X-RAY DIFFRACTIONr_mcangle_it3.0113.33710032
X-RAY DIFFRACTIONr_mcangle_other3.0113.33710033
X-RAY DIFFRACTIONr_scbond_it3.0452.4568613
X-RAY DIFFRACTIONr_scbond_other3.0452.4568613
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other4.3033.5812428
X-RAY DIFFRACTIONr_long_range_B_refined5.48618.33320722
X-RAY DIFFRACTIONr_long_range_B_other5.3918.17320166
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2→2.052 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.294 494 -
Rwork0.237 9219 -
obs--97.59 %

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