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- PDB-5frt: Structure of the FeSII (shethna) protein of Azotobacter vinelandii -

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Basic information

Entry
Database: PDB / ID: 5frt
TitleStructure of the FeSII (shethna) protein of Azotobacter vinelandii
ComponentsDIMERIC (2FE-2S) PROTEIN
KeywordsOXIDOREDUCTASE / NITROGENASE / OXYGEN PROTECTION / FERREDOXIN
Function / homology
Function and homology information


nitrogen fixation / 2 iron, 2 sulfur cluster binding / metal ion binding / cytoplasm
Similarity search - Function
2Fe-2S ferredoxin, iron-sulphur binding site / 2Fe-2S ferredoxin-type iron-sulfur binding region signature. / 2Fe-2S iron-sulfur cluster binding domain / Beta-grasp domain superfamily / 2Fe-2S ferredoxin-type iron-sulfur binding domain profile. / 2Fe-2S ferredoxin-type iron-sulfur binding domain / 2Fe-2S ferredoxin-like superfamily
Similarity search - Domain/homology
FE2/S2 (INORGANIC) CLUSTER / Protein FeSII
Similarity search - Component
Biological speciesAZOTOBACTER VINELANDII (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / SAD / Resolution: 2.34 Å
AuthorsKabasakal, B.V. / Cotton, C.A.R. / Lieber, L. / Murray, J.W.
CitationJournal: To be Published
Title: Structure of Fesi Protein from Azotobacter Vinelandii
Authors: Kabasakal, B. / Cotton, C.A.R. / Lieber, L. / Murray, J.W.
History
DepositionDec 22, 2015Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 13, 2016Provider: repository / Type: Initial release
Revision 1.1May 8, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _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

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Assembly

Deposited unit
A: DIMERIC (2FE-2S) PROTEIN
B: DIMERIC (2FE-2S) PROTEIN
C: DIMERIC (2FE-2S) PROTEIN
D: DIMERIC (2FE-2S) PROTEIN
E: DIMERIC (2FE-2S) PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)67,32610
Polymers66,4475
Non-polymers8795
Water93752
1
C: DIMERIC (2FE-2S) PROTEIN
D: DIMERIC (2FE-2S) PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)26,9304
Polymers26,5792
Non-polymers3522
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2550 Å2
ΔGint-45.8 kcal/mol
Surface area13010 Å2
MethodPISA
2
A: DIMERIC (2FE-2S) PROTEIN
hetero molecules

B: DIMERIC (2FE-2S) PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)26,9304
Polymers26,5792
Non-polymers3522
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation1_554x,y,z-11
Buried area2480 Å2
ΔGint-44.1 kcal/mol
Surface area13320 Å2
MethodPISA
3
B: DIMERIC (2FE-2S) PROTEIN
hetero molecules

A: DIMERIC (2FE-2S) PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)26,9304
Polymers26,5792
Non-polymers3522
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation1_556x,y,z+11
Buried area2480 Å2
ΔGint-44.1 kcal/mol
Surface area13320 Å2
MethodPISA
4
E: DIMERIC (2FE-2S) PROTEIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)13,4652
Polymers13,2891
Non-polymers1761
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)133.560, 134.530, 36.600
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212
Components on special symmetry positions
IDModelComponents
11E-2001-

HOH

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Components

#1: Protein
DIMERIC (2FE-2S) PROTEIN / FESII PROTEIN / SHETHA PROTEIN II


Mass: 13289.330 Da / Num. of mol.: 5
Source method: isolated from a genetically manipulated source
Details: FE2S2 CLUSTER BOUND / Source: (gene. exp.) AZOTOBACTER VINELANDII (bacteria) / Description: GERMAN COLLECTION OF MICROORGANISMS (DSM) / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): K-12 / Variant (production host): KRX / References: UniProt: Q44501
#2: Chemical
ChemComp-FES / FE2/S2 (INORGANIC) CLUSTER / Iron–sulfur cluster


Mass: 175.820 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: Fe2S2
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 52 / 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: 2.47 Å3/Da / Density % sol: 50 % / Description: NONE
Crystal growpH: 8
Details: 0.1M NA HEPES PH 8.0, 0.2 M NA CITRATE, 24% W/V PEG 3350.

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I03 / Wavelength: 0.97625, 1.73487
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Dec 16, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
IDWavelength (Å)Relative weight
10.976251
21.734871
ReflectionResolution: 2.34→67.26 Å / Num. obs: 28854 / % possible obs: 99.8 % / Observed criterion σ(I): 0 / Redundancy: 6.2 % / Biso Wilson estimate: 53.23 Å2 / Rmerge(I) obs: 0.07 / Net I/σ(I): 15.3
Reflection shellResolution: 2.34→2.4 Å / Redundancy: 4.3 % / Rmerge(I) obs: 0.99 / Mean I/σ(I) obs: 1.4 / % possible all: 98.3

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Processing

Software
NameVersionClassification
PHENIX(PHENIX.REFINE)refinement
XDSdata reduction
XSCALEdata scaling
PHENIXAUTOSOLphasing
RefinementMethod to determine structure: SAD
Starting model: NONE

Resolution: 2.34→67.265 Å / SU ML: 0.31 / σ(F): 1.34 / Phase error: 28.21 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2517 1341 4.7 %
Rwork0.2171 --
obs0.2188 28796 99.82 %
Solvent computationShrinkage radii: 0.6 Å / VDW probe radii: 1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 2.34→67.265 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4353 0 20 52 4425
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0074456
X-RAY DIFFRACTIONf_angle_d1.2055995
X-RAY DIFFRACTIONf_dihedral_angle_d16.12742
X-RAY DIFFRACTIONf_chiral_restr0.085707
X-RAY DIFFRACTIONf_plane_restr0.008779
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.34-2.42370.35471360.31652666X-RAY DIFFRACTION99
2.4237-2.52070.35551350.32122669X-RAY DIFFRACTION100
2.5207-2.63540.35211210.29252733X-RAY DIFFRACTION100
2.6354-2.77440.31381290.27612701X-RAY DIFFRACTION100
2.7744-2.94820.28481200.25932713X-RAY DIFFRACTION100
2.9482-3.17580.31281290.26682736X-RAY DIFFRACTION100
3.1758-3.49540.22781400.22212731X-RAY DIFFRACTION100
3.4954-4.00120.23671210.21132782X-RAY DIFFRACTION100
4.0012-5.04080.21961620.16852765X-RAY DIFFRACTION100
5.0408-67.29280.2291480.19062959X-RAY DIFFRACTION100
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL112)L122)L132)L222)L232)L332)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T112)T122)T132)T222)T232)T332)Origin x (Å)Origin y (Å)Origin z (Å)
12.2074-1.1621.63623.19820.89341.00160.33530.1752-0.44480.1289-0.0584-0.10680.16610.09850.00080.4502-0.038-0.06290.3271-0.02730.407719.1482-39.813-1.6496
20.42170.4127-0.0844-0.5911-1.96561.6038-0.04110.02310.16290.4177-0.04760.13190.0868-0.58550.00010.6997-0.09630.02010.4774-0.05520.471123.1839-15.2614-16.2617
30.87490.92620.94651.71860.97980.3891-0.03070.1239-0.3214-0.1778-0.1775-0.20420.0408-0.1872-0.00020.42720.00720.01280.4332-0.06030.363118.2932-35.4523-5.507
41.1561-0.24140.46210.68090.55360.7008-0.2103-0.0587-0.2835-0.45780.6592-1.13270.04830.24170.02970.5007-0.07790.05630.4516-0.11290.541433.6238-22.1721-4.0294
5-0.02130.04490.0146-0.0146-0.0717-0.0522-0.2272-0.68010.46440.63230.3984-0.3262-0.2379-0.1949-0.00020.51120.1887-0.17290.8487-0.17550.604742.5781-22.329811.6358
60.0029-0.0031-0.14780.0350.1328-0.0454-0.0314-0.0291-0.3995-0.27090.5193-1.3876-1.25230.2280.00470.5588-0.08110.08550.485-0.22530.86940.4901-16.75093.3529
70.9472-0.07260.89150.6205-0.38240.5061-0.1944-0.00440.3634-0.16170.3282-0.39010.35680.04570.00020.4602-0.0815-0.01880.4003-0.11920.5133.5453-11.40735.4578
80.0589-0.5283-0.21330.0758-0.2727-0.0169-0.1905-1.22790.27540.25380.11690.10560.13630.7505-0.00070.7130.03810.00330.6734-0.10650.456521.0584-30.732813.9044
90.07910.15980.12240.15270.18980.2240.34380.798-0.1192-1.82120.1222-0.8364-0.5951-0.589-0.02570.77050.0437-0.0740.7755-0.02390.76737.7024-33.605221.0401
100.28290.2971-0.79690.4181-0.48361.77380.74420.20451.23940.0931.2521.2458-1.9989-0.62570.2010.86430.06770.06310.84180.00120.800610.2238-25.194320.9867
11-0.1349-0.03840.3701-0.003-0.4885-0.13930.15460.15530.49770.86490.06660.11320.3213-0.03960.00160.5481-0.07780.01470.5069-0.03680.399722.7233-19.81228.5134
120.6210.43780.89850.47190.770.2975-0.0835-0.2322-0.007-0.0240.2083-0.47520.2314-0.40490.00250.44020.0361-0.10450.3351-0.04550.501331.3206-19.08354.3904
132.78081.5448-1.12691.2890.57341.25750.18020.14710.93880.1737-0.0244-0.0218-0.4279-0.60240.02330.43780.21990.09030.47990.01840.594514.010626.2341-3.2695
140.2513-0.4527-0.71110.81160.01260.34910.16590.5113-0.1285-0.52780.13180.33430.1188-0.65730.00230.56020.0187-0.08030.6203-0.09440.683825.45983.611112.9767
151.3448-0.3014-0.69950.8723-0.52352.1490.1804-0.58560.56220.30590.06030.1588-0.0151-0.54140.00010.55470.04530.00730.6836-0.0590.595314.082521.0727-1.6376
160.5339-0.3916-0.28380.42120.81780.68320.2339-0.27220.5784-0.0080.16980.0118-0.29890.60830.00010.4833-0.00320.00950.4114-0.04220.398631.592318.659433.3694
170.1508-0.0583-0.15410.05380.11140.04350.7621.4457-0.00760.1328-1.78280.7644-0.06250.1302-0.00020.75770.1130.02420.65570.23850.500239.289823.108119.5629
180.452-0.1807-0.20170.16150.04320.1250.55960.73140.669-0.1854-0.1251-0.98770.51961.3844-0.01740.42480.05870.03240.5538-0.06250.642140.08116.438325.8783
191.01550.6499-0.73450.60750.1250.71120.05190.3463-0.30070.33330.0863-0.52120.27740.0957-0.00050.40080.073-0.07840.5002-0.13420.467435.92248.575324.2099
200.70171.11990.63922.988-0.15521.2393-0.27420.9756-0.28710.82460.66750.2372-0.3449-0.62140.67110.0914-0.07390.17411.1768-0.01530.33589.885917.031510.5835
213.62121.038-0.14611.4794-0.39730.72130.03120.5825-1.5969-0.3651-0.1225-0.2767-0.6984-0.4987-0.10310.42630.1103-0.09280.6295-0.06780.209723.494611.619720.602
222.30610.0677-0.08750.03280.39530.55890.0934-0.0166-0.3519-0.088-0.035-0.2915-0.4032-0.2422-0.00550.60990.03710.05840.32180.1040.416130.756414.776124.9025
232.8768-0.89090.20152.5393-0.65494.8605-0.4207-1.0211.13690.0139-0.3230.3359-0.2588-0.2248-1.35360.3690.068-0.05660.5977-0.13560.516757.53226.773816.0927
24-0.0217-0.05910.16120.15810.0233-0.11220.0764-0.2670.94240.380.77860.72120.81020.64720.0030.51220.033-0.12460.8651-0.04761.126848.850813.249710.6661
250.85570.6555-0.34990.3635-0.09520.31650.0831-0.5964-0.0632-0.06320.2280.61190.4648-0.60730.01750.28490.0359-0.03740.57330.09450.434253.75652.53146.5663
260.2722-0.2373-0.46460.09430.4590.89980.24170.3131-0.26330.5599-0.5176-0.74680.3021-0.4028-0.15610.7160.1046-0.13980.63120.21560.803750.444-9.46619.6514
271.482.02720.02360.8546-0.43790.1084-0.64190.03880.2569-0.230.51670.21860.0932-0.0427-0.06250.3815-0.0344-0.08630.52030.03460.429452.22151.1734.9926
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1CHAIN 'A' AND (RESID 2 THROUGH 56 )
2X-RAY DIFFRACTION2CHAIN 'A' AND (RESID 57 THROUGH 96 )
3X-RAY DIFFRACTION3CHAIN 'A' AND (RESID 97 THROUGH 120 )
4X-RAY DIFFRACTION4CHAIN 'B' AND (RESID 2 THROUGH 18 )
5X-RAY DIFFRACTION5CHAIN 'B' AND (RESID 19 THROUGH 26 )
6X-RAY DIFFRACTION6CHAIN 'B' AND (RESID 27 THROUGH 33 )
7X-RAY DIFFRACTION7CHAIN 'B' AND (RESID 34 THROUGH 56 )
8X-RAY DIFFRACTION8CHAIN 'B' AND (RESID 57 THROUGH 68 )
9X-RAY DIFFRACTION9CHAIN 'B' AND (RESID 69 THROUGH 77 )
10X-RAY DIFFRACTION10CHAIN 'B' AND (RESID 78 THROUGH 89 )
11X-RAY DIFFRACTION11CHAIN 'B' AND (RESID 90 THROUGH 103 )
12X-RAY DIFFRACTION12CHAIN 'B' AND (RESID 104 THROUGH 120 )
13X-RAY DIFFRACTION13CHAIN 'C' AND (RESID 2 THROUGH 68 )
14X-RAY DIFFRACTION14CHAIN 'C' AND (RESID 69 THROUGH 89 )
15X-RAY DIFFRACTION15CHAIN 'C' AND (RESID 90 THROUGH 120 )
16X-RAY DIFFRACTION16CHAIN 'D' AND (RESID 2 THROUGH 18 )
17X-RAY DIFFRACTION17CHAIN 'D' AND (RESID 19 THROUGH 26 )
18X-RAY DIFFRACTION18CHAIN 'D' AND (RESID 27 THROUGH 33 )
19X-RAY DIFFRACTION19CHAIN 'D' AND (RESID 34 THROUGH 56 )
20X-RAY DIFFRACTION20CHAIN 'D' AND (RESID 57 THROUGH 89 )
21X-RAY DIFFRACTION21CHAIN 'D' AND (RESID 90 THROUGH 103 )
22X-RAY DIFFRACTION22CHAIN 'D' AND (RESID 104 THROUGH 120 )
23X-RAY DIFFRACTION23CHAIN 'E' AND (RESID 2 THROUGH 33 )
24X-RAY DIFFRACTION24CHAIN 'E' AND (RESID 34 THROUGH 43 )
25X-RAY DIFFRACTION25CHAIN 'E' AND (RESID 44 THROUGH 58 )
26X-RAY DIFFRACTION26CHAIN 'E' AND (RESID 59 THROUGH 68 )
27X-RAY DIFFRACTION27CHAIN 'E' AND (RESID 69 THROUGH 120 )

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