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- PDB-3owm: Structure of the Thioalkalivibrio nitratireducens cytochrome c ni... -

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Basic information

Entry
Database: PDB / ID: 3owm
TitleStructure of the Thioalkalivibrio nitratireducens cytochrome c nitrite reductase in a complex with hydroxylamine
ComponentsEight-heme nitrite reductase
KeywordsOXIDOREDUCTASE / alpha protein / eight hemes c / Tyr-Cys bond
Function / homology
Function and homology information


ammonium ion metabolic process / nitrite reductase (cytochrome; ammonia-forming) / nitrite reductase (cytochrome, ammonia-forming) activity / anaerobic electron transport chain / nitrate assimilation / outer membrane-bounded periplasmic space / calcium ion binding / heme binding
Similarity search - Function
Helix Hairpins - #3080 / Cytochrome c552 / Cytochrome c552 / Flavocytochrome C3; Chain A / Flavocytochrome C3; Chain A, domain 2 / Multiheme cytochrome c family profile. / Butyryl-CoA Dehydrogenase, subunit A, domain 3 / Multiheme cytochrome superfamily / Butyryl-CoA Dehydrogenase, subunit A; domain 3 / Helix Hairpins ...Helix Hairpins - #3080 / Cytochrome c552 / Cytochrome c552 / Flavocytochrome C3; Chain A / Flavocytochrome C3; Chain A, domain 2 / Multiheme cytochrome c family profile. / Butyryl-CoA Dehydrogenase, subunit A, domain 3 / Multiheme cytochrome superfamily / Butyryl-CoA Dehydrogenase, subunit A; domain 3 / Helix Hairpins / Up-down Bundle / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
HEME C / NITRITE ION / Chem-PG6 / Cytochrome c-552 / Cytochrome c-552
Similarity search - Component
Biological speciesThioalkalivibrio nitratireducens (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.65 Å
AuthorsTrofimov, A.A. / Polyakov, K.M. / Boyko, K.M. / Tikhonova, T.V. / Lamzin, V.S. / Bourenkov, G.P. / Popov, V.O.
CitationJournal: To be Published
Title: Binding of sulfite by the Thioalkalivibrio nitratireducens cytochrome c nitrite reductase
Authors: Trofimov, A.A. / Polyakov, K.M. / Tikhonova, T.V. / Popov, V.O.
History
DepositionSep 20, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 26, 2011Provider: repository / Type: Initial release
Revision 1.1Sep 6, 2023Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / diffrn_source / pdbx_initial_refinement_model / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / struct_conn / struct_conn_type / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _diffrn_source.pdbx_synchrotron_site / _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_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.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_ptnr1_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 / _struct_conn_type.id / _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: Eight-heme nitrite reductase
B: Eight-heme nitrite reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)132,36048
Polymers117,6692
Non-polymers14,69146
Water22,3931243
1
A: Eight-heme nitrite reductase
B: Eight-heme nitrite reductase
hetero molecules

A: Eight-heme nitrite reductase
B: Eight-heme nitrite reductase
hetero molecules

A: Eight-heme nitrite reductase
B: Eight-heme nitrite reductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)397,080144
Polymers353,0086
Non-polymers44,072138
Water1086
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_456z-1/2,-x+1/2,-y+11
crystal symmetry operation12_565-y+1/2,-z+1,x+1/21
Buried area103230 Å2
ΔGint-1173 kcal/mol
Surface area93270 Å2
MethodPISA
Unit cell
Length a, b, c (Å)192.529, 192.529, 192.529
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number198
Space group name H-MP213
Components on special symmetry positions
IDModelComponents
11A-524-

TRS

21A-524-

TRS

31A-525-

CA

41B-524-

TRS

51B-524-

TRS

61B-525-

CA

71B-562-

HOH

81B-1111-

HOH

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein Eight-heme nitrite reductase


Mass: 58834.641 Da / Num. of mol.: 2 / Fragment: UNP residues 33-551 / Source method: isolated from a natural source
Source: (natural) Thioalkalivibrio nitratireducens (bacteria)
Strain: ALEN 2 / References: UniProt: Q5F2I3, UniProt: L0DSL2*PLUS

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Non-polymers , 8 types, 1289 molecules

#2: Chemical
ChemComp-HEC / HEME C


Mass: 618.503 Da / Num. of mol.: 16 / Source method: obtained synthetically / Formula: C34H34FeN4O4
#3: Chemical ChemComp-NO2 / NITRITE ION


Mass: 46.005 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: NO2
#4: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Ca
#5: Chemical ChemComp-TRS / 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / TRIS BUFFER


Mass: 122.143 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C4H12NO3 / Comment: pH buffer*YM
#6: Chemical
ChemComp-PG6 / 1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE


Mass: 266.331 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C12H26O6
#7: Chemical
ChemComp-PG4 / TETRAETHYLENE GLYCOL


Mass: 194.226 Da / Num. of mol.: 12 / Source method: obtained synthetically / Formula: C8H18O5 / Comment: precipitant*YM
#8: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1243 / 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: 4.08 Å3/Da / Density % sol: 69.61 %
Crystal growTemperature: 278 K / Method: vapor diffusion, hanging drop / pH: 8.7
Details: Protein solution (5mcl): 14.5mg/ml TvNiR, 0.05M Tris borate (pH8.7). Reservoir solution (5mcl): 0.2M tri-sodium citrate dihydrate, 0.1M Tris hydrochloride (pH8.5), 30% v/v PEG 400. Crystal ...Details: Protein solution (5mcl): 14.5mg/ml TvNiR, 0.05M Tris borate (pH8.7). Reservoir solution (5mcl): 0.2M tri-sodium citrate dihydrate, 0.1M Tris hydrochloride (pH8.5), 30% v/v PEG 400. Crystal was soaked in 0.1M hydroxylamine solution for 30min., VAPOR DIFFUSION, HANGING DROP, temperature 278.0K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X11 / Wavelength: 0.81 Å
DetectorType: MAR CCD 165 mm / Detector: CCD / Date: Nov 5, 2004
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.81 Å / Relative weight: 1
ReflectionResolution: 1.65→12 Å / Num. all: 282622 / Num. obs: 281694 / % possible obs: 99.9 % / Redundancy: 5.8 % / Biso Wilson estimate: 25.9 Å2 / Rmerge(I) obs: 0.058 / Net I/σ(I): 40
Reflection shellResolution: 1.65→1.67 Å / Redundancy: 5.7 % / Rmerge(I) obs: 0.453 / Mean I/σ(I) obs: 3.8 / % possible all: 99.9

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Processing

Software
NameVersionClassification
HKL-2000data collection
REFMAC5.5.0072refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 2OT4

2ot4


Resolution: 1.65→12 Å / Cor.coef. Fo:Fc: 0.974 / Cor.coef. Fo:Fc free: 0.97 / SU B: 0.891 / SU ML: 0.031 / Cross valid method: THROUGHOUT / ESU R Free: 0.051 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.15372 14237 5.1 %RANDOM
Rwork0.13926 ---
obs0.13999 267415 99.66 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 17.802 Å2
Refine analyzeLuzzati coordinate error obs: 0.149 Å
Refinement stepCycle: LAST / Resolution: 1.65→12 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8206 0 832 1243 10281
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0190.0219562
X-RAY DIFFRACTIONr_bond_other_d0.0010.025748
X-RAY DIFFRACTIONr_angle_refined_deg1.5672.14713022
X-RAY DIFFRACTIONr_angle_other_deg1.022313887
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.151036
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.13523.72465
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.272151399
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.4271566
X-RAY DIFFRACTIONr_chiral_restr0.0940.21210
X-RAY DIFFRACTIONr_gen_planes_refined0.0150.0210592
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021864
X-RAY DIFFRACTIONr_mcbond_it0.8251.55194
X-RAY DIFFRACTIONr_mcbond_other0.2311.52061
X-RAY DIFFRACTIONr_mcangle_it1.40728358
X-RAY DIFFRACTIONr_scbond_it2.0434368
X-RAY DIFFRACTIONr_scangle_it3.1514.54663
LS refinement shellResolution: 1.65→1.693 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.233 1052 -
Rwork0.215 19756 -
obs--99.97 %

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