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- PDB-5yl5: Crystal structure of dodecameric Dehydroquinate dehydratase from ... -

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Basic information

Entry
Database: PDB / ID: 5yl5
TitleCrystal structure of dodecameric Dehydroquinate dehydratase from Acinetobacter baumannii at 1.9A resolution
Components3-dehydroquinate dehydratase
KeywordsLYASE
Function / homology
Function and homology information


quinate catabolic process / 3-dehydroquinate dehydratase / 3-dehydroquinate dehydratase activity / chorismate biosynthetic process / aromatic amino acid family biosynthetic process / amino acid biosynthetic process
Similarity search - Function
Dehydroquinase, class II / Dehydroquinase, class II, conserved site / Dehydroquinase class II signature. / Dehydroquinase, class II / Dehydroquinase, class II superfamily / Dehydroquinase class II / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
3-dehydroquinate dehydratase
Similarity search - Component
Biological speciesAcinetobacter baumannii (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.9 Å
AuthorsIqbal, N. / Kaur, P. / Sharma, S. / Singh, T.P.
Citation
Journal: To Be Published
Title: Crystal structure of dodecameric Dehydroquinate dehydratase from Acinetobacter baumannii at 1.9A resolution
Authors: Iqbal, N. / Kaur, P. / Sharma, S. / Singh, T.P.
#1: Journal: To Be Published
Title: Crystal structure of dodecameric Dehydroquinate dehydratase from Acinetobacter baumannii at 1.9A resolution
Authors: Iqbal, N. / Kaur, P. / Sharma, S. / Singh, T.P.
History
DepositionOct 17, 2017Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Nov 1, 2017Provider: repository / Type: Initial release
Revision 1.1Nov 22, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ncs_dom_lim
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: 3-dehydroquinate dehydratase
B: 3-dehydroquinate dehydratase
C: 3-dehydroquinate dehydratase
D: 3-dehydroquinate dehydratase
E: 3-dehydroquinate dehydratase
F: 3-dehydroquinate dehydratase
G: 3-dehydroquinate dehydratase
H: 3-dehydroquinate dehydratase
I: 3-dehydroquinate dehydratase
J: 3-dehydroquinate dehydratase
K: 3-dehydroquinate dehydratase
L: 3-dehydroquinate dehydratase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)200,22933
Polymers198,20212
Non-polymers2,02821
Water10,359575
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area31710 Å2
ΔGint-416 kcal/mol
Surface area63150 Å2
MethodPISA
Unit cell
Length a, b, c (Å)81.796, 155.129, 155.465
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B
12A
22C
13A
23D
14A
24E
15A
25F
16A
26G
17A
27H
18A
28I
19A
29J
110A
210K
111A
211L
112B
212C
113B
213D
114B
214E
115B
215F
116B
216G
117B
217H
118B
218I
119B
219J
120B
220K
121B
221L
122C
222D
123C
223E
124C
224F
125C
225G
126C
226H
127C
227I
128C
228J
129C
229K
130C
230L
131D
231E
132D
232F
133D
233G
134D
234H
135D
235I
136D
236J
137D
237K
138D
238L
139E
239F
140E
240G
141E
241H
142E
242I
143E
243J
144E
244K
145E
245L
146F
246G
147F
247H
148F
248I
149F
249J
150F
250K
151F
251L
152G
252H
153G
253I
154G
254J
155G
255K
156G
256L
157H
257I
158H
258J
159H
259K
160H
260L
161I
261J
162I
262K
163I
263L
164J
264K
165J
265L
166K
266L

NCS domain segments:

Component-ID: 0 / Beg auth comp-ID: SER / Beg label comp-ID: SER / Refine code: 0

Dom-IDEns-IDEnd auth comp-IDEnd label comp-IDAuth asym-IDLabel asym-IDAuth seq-IDLabel seq-ID
11PROPROAA3 - 1473 - 147
21PROPROBB3 - 1473 - 147
12PROPROAA3 - 1473 - 147
22PROPROCC3 - 1473 - 147
13PROPROAA3 - 1473 - 147
23PROPRODD3 - 1473 - 147
14PROPROAA3 - 1473 - 147
24PROPROEE3 - 1473 - 147
15PROPROAA3 - 1473 - 147
25PROPROFF3 - 1473 - 147
16PROPROAA3 - 1473 - 147
26PROPROGG3 - 1473 - 147
17PROPROAA3 - 1473 - 147
27PROPROHH3 - 1473 - 147
18PROPROAA3 - 1473 - 147
28PROPROII3 - 1473 - 147
19PROPROAA3 - 1473 - 147
29PROPROJJ3 - 1473 - 147
110GLNGLNAA3 - 1463 - 146
210GLNGLNKK3 - 1463 - 146
111PROPROAA3 - 1473 - 147
211PROPROLL3 - 1473 - 147
112PROPROBB3 - 1473 - 147
212PROPROCC3 - 1473 - 147
113PROPROBB3 - 1473 - 147
213PROPRODD3 - 1473 - 147
114PROPROBB3 - 1473 - 147
214PROPROEE3 - 1473 - 147
115PROPROBB3 - 1473 - 147
215PROPROFF3 - 1473 - 147
116PROPROBB3 - 1473 - 147
216PROPROGG3 - 1473 - 147
117PROPROBB3 - 1473 - 147
217PROPROHH3 - 1473 - 147
118PROPROBB3 - 1473 - 147
218PROPROII3 - 1473 - 147
119PROPROBB3 - 1473 - 147
219PROPROJJ3 - 1473 - 147
120GLNGLNBB3 - 1463 - 146
220GLNGLNKK3 - 1463 - 146
121PROPROBB3 - 1473 - 147
221PROPROLL3 - 1473 - 147
122PROPROCC3 - 1473 - 147
222PROPRODD3 - 1473 - 147
123PROPROCC3 - 1473 - 147
223PROPROEE3 - 1473 - 147
124PROPROCC3 - 1473 - 147
224PROPROFF3 - 1473 - 147
125PROPROCC3 - 1473 - 147
225PROPROGG3 - 1473 - 147
126PROPROCC3 - 1473 - 147
226PROPROHH3 - 1473 - 147
127PROPROCC3 - 1473 - 147
227PROPROII3 - 1473 - 147
128PROPROCC3 - 1473 - 147
228PROPROJJ3 - 1473 - 147
129GLNGLNCC3 - 1463 - 146
229GLNGLNKK3 - 1463 - 146
130PROPROCC3 - 1473 - 147
230PROPROLL3 - 1473 - 147
131PROPRODD3 - 1473 - 147
231PROPROEE3 - 1473 - 147
132PROPRODD3 - 1473 - 147
232PROPROFF3 - 1473 - 147
133PROPRODD3 - 1473 - 147
233PROPROGG3 - 1473 - 147
134PROPRODD3 - 1473 - 147
234PROPROHH3 - 1473 - 147
135PROPRODD3 - 1473 - 147
235PROPROII3 - 1473 - 147
136PROPRODD3 - 1473 - 147
236PROPROJJ3 - 1473 - 147
137GLNGLNDD3 - 1463 - 146
237GLNGLNKK3 - 1463 - 146
138PROPRODD3 - 1473 - 147
238PROPROLL3 - 1473 - 147
139PROPROEE3 - 1473 - 147
239PROPROFF3 - 1473 - 147
140PROPROEE3 - 1473 - 147
240PROPROGG3 - 1473 - 147
141PROPROEE3 - 1473 - 147
241PROPROHH3 - 1473 - 147
142PROPROEE3 - 1473 - 147
242PROPROII3 - 1473 - 147
143PROPROEE3 - 1473 - 147
243PROPROJJ3 - 1473 - 147
144GLNGLNEE3 - 1463 - 146
244GLNGLNKK3 - 1463 - 146
145PROPROEE3 - 1473 - 147
245PROPROLL3 - 1473 - 147
146PROPROFF3 - 1473 - 147
246PROPROGG3 - 1473 - 147
147PROPROFF3 - 1473 - 147
247PROPROHH3 - 1473 - 147
148PROPROFF3 - 1473 - 147
248PROPROII3 - 1473 - 147
149PROPROFF3 - 1473 - 147
249PROPROJJ3 - 1473 - 147
150GLNGLNFF3 - 1463 - 146
250GLNGLNKK3 - 1463 - 146
151PROPROFF3 - 1473 - 147
251PROPROLL3 - 1473 - 147
152PROPROGG3 - 1473 - 147
252PROPROHH3 - 1473 - 147
153PROPROGG3 - 1473 - 147
253PROPROII3 - 1473 - 147
154PROPROGG3 - 1473 - 147
254PROPROJJ3 - 1473 - 147
155GLNGLNGG3 - 1463 - 146
255GLNGLNKK3 - 1463 - 146
156PROPROGG3 - 1473 - 147
256PROPROLL3 - 1473 - 147
157PROPROHH3 - 1473 - 147
257PROPROII3 - 1473 - 147
158PROPROHH3 - 1473 - 147
258PROPROJJ3 - 1473 - 147
159GLNGLNHH3 - 1463 - 146
259GLNGLNKK3 - 1463 - 146
160PROPROHH3 - 1473 - 147
260PROPROLL3 - 1473 - 147
161PROPROII3 - 1473 - 147
261PROPROJJ3 - 1473 - 147
162GLNGLNII3 - 1463 - 146
262GLNGLNKK3 - 1463 - 146
163PROPROII3 - 1473 - 147
263PROPROLL3 - 1473 - 147
164GLNGLNJJ3 - 1463 - 146
264GLNGLNKK3 - 1463 - 146
165PROPROJJ3 - 1473 - 147
265PROPROLL3 - 1473 - 147
166GLNGLNKK3 - 1463 - 146
266GLNGLNLL3 - 1463 - 146

NCS ensembles :
ID
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66

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Components

#1: Protein
3-dehydroquinate dehydratase / / 3-dehydroquinase / Type II DHQase


Mass: 16516.803 Da / Num. of mol.: 12
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Acinetobacter baumannii (strain ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377) (bacteria)
Strain: ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377
Gene: aroQ, A1S_2009 / Production host: Escherichia coli (E. coli) / References: UniProt: A3M692, 3-dehydroquinate dehydratase
#2: Chemical
ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 16 / Source method: obtained synthetically / Formula: SO4
#3: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C3H8O3
#4: Chemical ChemComp-TRS / 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / TRIS BUFFER / Tris


Mass: 122.143 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H12NO3 / Comment: pH buffer*YM
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 575 / 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: 2.54 Å3/Da / Density % sol: 51.51 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 8.5
Details: 1.5M Ammonium Sulfate, 0.1M tris pH 8.5, 12% Glycerol

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID29 / Wavelength: 0.972 Å
DetectorType: MARRESEARCH / Detector: CCD / Date: Sep 3, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.972 Å / Relative weight: 1
ReflectionResolution: 1.9→49.15 Å / Num. obs: 146433 / % possible obs: 93 % / Redundancy: 4.4 % / Rmerge(I) obs: 0.096 / Net I/σ(I): 9.3
Reflection shellResolution: 1.9→1.945 Å / Redundancy: 4.2 % / Rmerge(I) obs: 0.756 / Num. unique obs: 5076 / % possible all: 94.6

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Processing

Software
NameVersionClassification
REFMAC5.8.0135refinement
XDSdata reduction
SCALEPACKdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5B6P
Resolution: 1.9→49.15 Å / Cor.coef. Fo:Fc: 0.971 / Cor.coef. Fo:Fc free: 0.956 / SU B: 9.585 / SU ML: 0.123 / Cross valid method: THROUGHOUT / ESU R: 0.141 / ESU R Free: 0.132 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21764 1538 1.1 %RANDOM
Rwork0.18141 ---
obs0.18177 144895 93.36 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 47.053 Å2
Baniso -1Baniso -2Baniso -3
1--0.35 Å2-0 Å2-0 Å2
2--0.1 Å2-0 Å2
3---0.25 Å2
Refinement stepCycle: 1 / Resolution: 1.9→49.15 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms13466 0 112 575 14153
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0230.01913821
X-RAY DIFFRACTIONr_bond_other_d0.0180.0213535
X-RAY DIFFRACTIONr_angle_refined_deg2.0581.95418803
X-RAY DIFFRACTIONr_angle_other_deg2.509330961
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.07851730
X-RAY DIFFRACTIONr_dihedral_angle_2_deg36.51724.314612
X-RAY DIFFRACTIONr_dihedral_angle_3_deg17.694152272
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.111572
X-RAY DIFFRACTIONr_chiral_restr0.1320.22231
X-RAY DIFFRACTIONr_gen_planes_refined0.0150.0215626
X-RAY DIFFRACTIONr_gen_planes_other0.0110.023182
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_it3.573.6876957
X-RAY DIFFRACTIONr_mcbond_other3.5693.6866955
X-RAY DIFFRACTIONr_mcangle_it5.4165.5038674
X-RAY DIFFRACTIONr_mcangle_other5.4155.5048675
X-RAY DIFFRACTIONr_scbond_it4.8114.2966864
X-RAY DIFFRACTIONr_scbond_other4.8114.2966864
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other7.3096.24610130
X-RAY DIFFRACTIONr_long_range_B_refined10.56135.09157912
X-RAY DIFFRACTIONr_long_range_B_other10.56135.0957911
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Weight position: 0.05

Ens-IDDom-IDAuth asym-IDNumberRms dev position (Å)
11A180540.08
12B180540.08
21A177440.09
22C177440.09
31A174020.1
32D174020.1
41A177840.09
42E177840.09
51A175100.1
52F175100.1
61A175940.1
62G175940.1
71A177060.08
72H177060.08
81A180080.08
82I180080.08
91A178940.09
92J178940.09
101A178620.08
102K178620.08
111A175820.09
112L175820.09
121B178660.1
122C178660.1
131B174540.11
132D174540.11
141B180020.09
142E180020.09
151B177060.1
152F177060.1
161B177440.09
162G177440.09
171B179420.09
172H179420.09
181B179080.08
182I179080.08
191B179720.09
192J179720.09
201B180380.08
202K180380.08
211B177300.09
212L177300.09
221C176340.09
222D176340.09
231C179180.08
232E179180.08
241C176100.1
242F176100.1
251C176920.09
252G176920.09
261C178460.08
262H178460.08
271C177020.08
272I177020.08
281C178580.09
282J178580.09
291C179200.08
292K179200.08
301C178160.09
302L178160.09
311D176780.09
312E176780.09
321D177880.1
322F177880.1
331D174880.1
332G174880.1
341D176440.09
342H176440.09
351D174160.09
352I174160.09
361D175420.1
362J175420.1
371D175600.09
372K175600.09
381D175080.09
382L175080.09
391E177500.09
392F177500.09
401E177140.09
402G177140.09
411E179520.08
412H179520.08
421E178560.08
422I178560.08
431E179740.08
432J179740.08
441E180020.07
442K180020.07
451E177080.09
452L177080.09
461F175000.1
462G175000.1
471F178940.08
472H178940.08
481F174640.09
482I174640.09
491F175780.1
492J175780.1
501F175340.09
502K175340.09
511F176220.09
512L176220.09
521G178800.08
522H178800.08
531G178700.08
532I178700.08
541G177540.09
542J177540.09
551G177200.08
552K177200.08
561G177660.09
562L177660.09
571H178500.07
572I178500.07
581H179440.09
582J179440.09
591H178280.07
592K178280.07
601H178880.07
602L178880.07
611I180320.07
612J180320.07
621I178760.07
622K178760.07
631I179820.07
632L179820.07
641J179500.07
642K179500.07
651J177880.09
652L177880.09
661K177360.08
662L177360.08
LS refinement shellResolution: 1.896→1.945 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.386 111 -
Rwork0.37 10464 -
obs--91.98 %
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)
10.58010.11080.15420.74460.04420.123-0.00940.12970.0234-0.04380.0417-0.0217-0.00690.0631-0.03230.1124-0.00690.01820.08830.00840.024932.44425.20776.7944
20.4909-0.0054-0.020.5626-0.0840.3220.05040.08090.0196-0.03070.03170.03610.0244-0.0268-0.08210.1204-0.0005-0.0240.07530.01770.02517.05627.73938.7235
30.2533-0.22670.38950.2398-0.38890.65110.07190.02190.0102-0.0887-0.05990.01210.12930.0595-0.0120.140.0281-0.01840.0642-0.01770.013834.2373-3.660617.4495
40.2338-0.0340.05850.17760.24780.6192-0.02340.03540.0383-0.0379-0.01040.0275-0.09230.06290.03370.1235-0.03710.010.04290.02660.075833.842644.76221.8241
50.2620.0137-0.1040.3186-0.06790.2020.0274-0.03820.00790.0666-0.0077-0.0264-0.0130.009-0.01970.1062-0.01660.0050.0775-0.00220.02742.684216.765560.9749
60.49050.0165-0.2180.13790.13290.2461-0.0277-0.0314-0.0562-0.01970.0030.00150.01550.01980.02470.10450.00770.00080.04470.010.0640.4987-6.642341.0638
70.34710.1889-0.08410.1630.02020.24680.0472-0.0522-0.0392-0.0025-0.0117-0.04010.0106-0.0462-0.03550.0949-0.01090.00590.0980.02880.019518.1649-2.039961.955
80.308-0.27190.22760.4485-0.22360.4108-0.0592-0.030.1087-0.00420.0227-0.0893-0.0127-0.01130.03650.0895-0.02890.01350.0331-0.02480.090141.299839.466751.3894
90.26280.41910.16780.85840.12210.3920.0127-0.00870.1212-0.0025-0.00710.16070.0119-0.0031-0.00570.03110.01250.02220.04740.00180.131-6.89135.801844.5589
100.4361-0.28740.3910.3854-0.20080.5608-0.0032-0.13470.0012-0.01380.06250.02960.0423-0.1135-0.05920.0578-0.00770.00630.12610.01510.0494-3.75147.508356.2826
110.30350.0359-0.07580.37810.05730.5050.00080.00910.0119-0.0541-0.02190.04490.0315-0.06080.02110.0652-0.016-0.01660.0840.02270.0542-10.1911.042726.3259
120.72780.0423-0.06730.26040.04380.48320.0609-0.02730.14130.0041-0.0170.0514-0.0243-0.0067-0.04390.0923-0.01310.02620.0035-0.01180.110813.212250.051144.1357
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A3 - 147
2X-RAY DIFFRACTION2B3 - 147
3X-RAY DIFFRACTION3C3 - 147
4X-RAY DIFFRACTION4D3 - 147
5X-RAY DIFFRACTION5E3 - 147
6X-RAY DIFFRACTION6F3 - 147
7X-RAY DIFFRACTION7G3 - 147
8X-RAY DIFFRACTION8H3 - 147
9X-RAY DIFFRACTION9I3 - 147
10X-RAY DIFFRACTION10J3 - 147
11X-RAY DIFFRACTION11K1 - 147
12X-RAY DIFFRACTION12L3 - 147

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