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- PDB-9ymm: Crystal structure of Glutamate--tRNA ligase (GltX) from Moraxella... -

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Basic information

Entry
Database: PDB / ID: 9ymm
TitleCrystal structure of Glutamate--tRNA ligase (GltX) from Moraxella catarrhalis in complex with 5'-O-(N-Glutamyl)sulfamoyladeonosine
ComponentsGlutamate--tRNA ligase
KeywordsLIGASE / SSGCID / STRUCTURAL GENOMICS / SEATTLE STRUCTURAL GENOMICS CENTER FOR INFECTIOUS DISEASE / Glutamate--tRNA ligase (GltX)
Function / homology
Function and homology information


glutamate-tRNA ligase / glutamate-tRNA ligase activity / glutamyl-tRNA aminoacylation / tRNA binding / zinc ion binding / ATP binding / cytosol
Similarity search - Function
Glutamate-tRNA ligase, bacterial/mitochondrial / Glutamyl-tRNA synthetase / Aminoacyl-tRNA synthetase, class I, anticodon-binding superfamily / Aminoacyl-tRNA synthetase, class I, anticodon-binding domain, subdomain 2 / Aminoacyl-tRNA synthetase, class I, anticodon-binding / Anticodon binding domain / : / Glutamyl/glutaminyl-tRNA synthetase / Glutamyl/glutaminyl-tRNA synthetase, class Ib, catalytic domain / tRNA synthetases class I (E and Q), catalytic domain ...Glutamate-tRNA ligase, bacterial/mitochondrial / Glutamyl-tRNA synthetase / Aminoacyl-tRNA synthetase, class I, anticodon-binding superfamily / Aminoacyl-tRNA synthetase, class I, anticodon-binding domain, subdomain 2 / Aminoacyl-tRNA synthetase, class I, anticodon-binding / Anticodon binding domain / : / Glutamyl/glutaminyl-tRNA synthetase / Glutamyl/glutaminyl-tRNA synthetase, class Ib, catalytic domain / tRNA synthetases class I (E and Q), catalytic domain / Aminoacyl-tRNA synthetase, class I, conserved site / Aminoacyl-transfer RNA synthetases class-I signature. / Rossmann-like alpha/beta/alpha sandwich fold
Similarity search - Domain/homology
O5'-(L-GLUTAMYL-SULFAMOYL)-ADENOSINE / Glutamate--tRNA ligase
Similarity search - Component
Biological speciesMoraxella catarrhalis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.92 Å
AuthorsSeattle Structural Genomics Center for Infectious Disease / Seattle Structural Genomics Center for Infectious Disease (SSGCID)
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)75N93022C00036 United States
National Institutes of Health/Office of the DirectorS10OD030394 United States
CitationJournal: To be published
Title: Crystal structure of Glutamate--tRNA ligase (GltX) from Moraxella catarrhalis in complex with 5'-O-(N-Glutamyl)sulfamoyladeonosine
Authors: Enayati, P. / Liu, L. / Lovell, S. / Battaile, K.P.
History
DepositionOct 10, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 22, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Glutamate--tRNA ligase
B: Glutamate--tRNA ligase
C: Glutamate--tRNA ligase
D: Glutamate--tRNA ligase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)241,98350
Polymers235,5424
Non-polymers6,44146
Water00
1
A: Glutamate--tRNA ligase
B: Glutamate--tRNA ligase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)120,92625
Polymers117,7712
Non-polymers3,15423
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
C: Glutamate--tRNA ligase
D: Glutamate--tRNA ligase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)121,05825
Polymers117,7712
Non-polymers3,28723
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)53.713, 124.225, 458.212
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein
Glutamate--tRNA ligase / Glutamyl-tRNA synthetase / GluRS


Mass: 58885.523 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Moraxella catarrhalis (bacteria) / Gene: gltX, AO370_0559 / Plasmid: MocaA.01348.a.UX11 / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: A0AB36DQE3, glutamate-tRNA ligase
#2: Chemical
ChemComp-GSU / O5'-(L-GLUTAMYL-SULFAMOYL)-ADENOSINE


Type: L-peptide linking / Mass: 475.434 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C15H21N7O9S / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical...
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 40 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-P6G / HEXAETHYLENE GLYCOL / POLYETHYLENE GLYCOL PEG400


Mass: 282.331 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H26O7 / Comment: precipitant*YM
#5: Chemical ChemComp-2PE / NONAETHYLENE GLYCOL


Mass: 414.488 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C18H38O10 / Comment: precipitant*YM
Has ligand of interestY
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: 3.25 Å3/Da / Density % sol: 62.1 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / pH: 5
Details: Grid Salt HT B2: 2.4M ammonium sulfate, 0.1M citrate pH 5.0, MocaA.01348.a.UX11.PS38771 at 26.6 mg/mL. 2mM ligand added prior to crystallization. Plate 20153 B2 drop 1 , Puck: PSL-0805, Cryo: ...Details: Grid Salt HT B2: 2.4M ammonium sulfate, 0.1M citrate pH 5.0, MocaA.01348.a.UX11.PS38771 at 26.6 mg/mL. 2mM ligand added prior to crystallization. Plate 20153 B2 drop 1 , Puck: PSL-0805, Cryo: 2.5 M ammonium sulfate.

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: NSLS-II / Beamline: 19-ID / Wavelength: 0.9786 Å
DetectorType: DECTRIS EIGER2 XE 9M / Detector: PIXEL / Date: Jul 26, 2025
RadiationMonochromator: Double Crystal Si 111 / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9786 Å / Relative weight: 1
ReflectionResolution: 2.92→49.3 Å / Num. obs: 68405 / % possible obs: 100 % / Redundancy: 13.2 % / CC1/2: 0.997 / Rmerge(I) obs: 0.218 / Rpim(I) all: 0.062 / Rrim(I) all: 0.227 / Χ2: 1.11 / Net I/σ(I): 11.4 / Num. measured all: 906211
Reflection shellResolution: 2.92→3 Å / % possible obs: 100 % / Redundancy: 13.9 % / Rmerge(I) obs: 1.471 / Num. measured all: 70232 / Num. unique obs: 5044 / CC1/2: 0.851 / Rpim(I) all: 0.406 / Rrim(I) all: 1.526 / Χ2: 0.94 / Net I/σ(I) obs: 1.7

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Processing

Software
NameVersionClassification
PHENIX(2.0_5765: ???)refinement
Aimlessdata scaling
XDSdata reduction
PHASERphasing
PDB_EXTRACTdata extraction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.92→49.3 Å / SU ML: 0.39 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 29.9 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2526 3353 4.92 %
Rwork0.2145 --
obs0.2164 68197 99.81 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 2.92→49.3 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms14941 0 375 0 15316
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00515649
X-RAY DIFFRACTIONf_angle_d0.77621275
X-RAY DIFFRACTIONf_dihedral_angle_d12.7945684
X-RAY DIFFRACTIONf_chiral_restr0.0442316
X-RAY DIFFRACTIONf_plane_restr0.0082685
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.92-2.960.40151430.35152717X-RAY DIFFRACTION100
2.96-3.010.39991330.33662643X-RAY DIFFRACTION100
3.01-3.050.38771310.32522610X-RAY DIFFRACTION100
3.05-3.10.39621300.32342698X-RAY DIFFRACTION100
3.1-3.160.42081530.32682679X-RAY DIFFRACTION100
3.16-3.210.36981240.31272611X-RAY DIFFRACTION100
3.21-3.280.35121340.27722662X-RAY DIFFRACTION100
3.28-3.340.33041260.26712698X-RAY DIFFRACTION100
3.34-3.420.27571380.24772630X-RAY DIFFRACTION100
3.42-3.490.27321520.24092668X-RAY DIFFRACTION100
3.49-3.580.2991280.24222712X-RAY DIFFRACTION100
3.58-3.680.24881250.23712611X-RAY DIFFRACTION100
3.68-3.790.25681360.22652693X-RAY DIFFRACTION100
3.79-3.910.27591490.20992690X-RAY DIFFRACTION100
3.91-4.050.21381260.18572674X-RAY DIFFRACTION100
4.05-4.210.22641600.17972705X-RAY DIFFRACTION100
4.21-4.40.18871500.172679X-RAY DIFFRACTION100
4.4-4.630.19581380.17162705X-RAY DIFFRACTION100
4.63-4.920.17971210.16072762X-RAY DIFFRACTION100
4.92-5.30.24131460.17372715X-RAY DIFFRACTION100
5.3-5.840.23141460.20192737X-RAY DIFFRACTION100
5.84-6.680.28431420.21842789X-RAY DIFFRACTION100
6.68-8.410.23511540.19732783X-RAY DIFFRACTION100
8.41-49.30.20151680.18392973X-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)
12.4769-1.4551.04310.4792-0.4531.6665-0.15350.0125-0.1130.02040.13450.0917-0.11370.1311-00.537-0.05560.01740.3153-0.08970.458411.767146.549626.5696
21.4165-0.3497-0.0481.94570.36010.4298-0.0016-0.10060.42110.0125-0.26370.3598-0.6668-0.4386-0.10070.54350.11710.030.2955-0.0730.62740.56851.627619.8752
30.6413-0.5824-0.58960.43960.70370.50740.27060.0923-0.04790.0856-0.85060.6543-0.3953-0.6202-0.02420.7491-0.0081-0.25481.0833-0.22250.8379-2.747331.10611.1064
42.10530.78910.26361.97950.05481.5020.01491.0620.1427-0.4014-0.19660.1819-0.3635-0.1811-0.2550.62890.1226-0.03090.5482-0.17950.62341.662540.15432.4599
52.5807-0.5174-0.0662-0.330.59730.950.14920.59060.0658-0.1414-0.17240.121-0.21690.1705-0.06820.51730.0337-0.00790.2775-0.09980.46510.940442.39411.6457
61.08610.6914-0.48970.9840.23170.7089-0.0987-0.3006-0.12610.0031-0.0745-0.38430.23351.3747-0.01040.62720.00350.00180.73160.07340.549626.296839.926634.161
72.03231.3941.51512.9384-0.36792.6045-0.7592-0.5232.0159-1.28260.3081.57010.1522-1.2997-0.64120.5015-0.0191-0.20750.23970.34080.453413.792938.405356.028
80.32591.0164-0.11791.02730.08710.9169-0.1437-0.1102-0.1458-0.1960.27350.1330.3447-0.42530.010.7727-0.0969-0.09440.55640.11630.6426.508418.941344.2671
91.278-0.09630.0951.77140.14750.45830.0613-0.16830.41220.2087-0.0203-0.2695-0.04120.1176-00.5881-0.0120.00721.03950.13410.64724.395539.7318103.8192
101.6528-0.66970.65661.4738-0.45450.91420.253-0.3278-0.334-0.0565-0.28950.48550.1424-0.3604-0.02060.5181-0.02560.04260.89120.20660.53410.869327.862388.894
110.67250.4061-0.38732.6545-1.49840.76780.5744-1.51670.53260.1379-0.35310.1693-0.99640.48590.04190.53460.0213-0.10010.8261-0.08220.53718.247938.298464.8831
120.14040.0090.38840.1543-0.22120.5276-0.20310.2169-0.2512-0.07160.3752-0.233-0.3944-0.7544-0.00490.4658-0.04820.01730.77990.03050.594328.66823.857860.6665
131.16370.68790.74541.31210.82560.69620.016-0.09930.06160.06540.0513-0.1079-0.08450.235300.5272-0.0052-0.01440.96210.21550.756638.410123.709374.7695
140.74980.591-0.74371.4591-0.86570.64570.1644-0.3808-0.13-0.0423-0.134-0.2569-0.0074-0.41230.00170.5464-0.0196-0.07170.9686-0.0890.5877-16.120569.628692.2688
150.41170.18640.07212.23330.1061-0.03520.1242-0.0566-0.00560.5618-0.11670.3220.3873-0.095400.8118-0.10320.08410.961-0.00170.7624-26.959660.8409105.1634
162.03390.43740.11741.6962-0.3490.27610.2679-0.4588-0.04380.7481-0.3206-0.2383-0.14440.3171-00.7712-0.144-0.00741.029-0.11460.5237-21.102173.9406108.5943
170.43630.6055-0.08150.23910.55221.00890.1879-0.72130.29330.0893-0.0169-0.29590.00430.45870.00690.5259-0.0151-0.01340.8134-0.13150.571-6.09681.17982.226
181.4789-1.3677-1.1240.55190.45290.5516-0.0681-0.0719-0.0794-0.2594-0.1447-0.0006-0.10890.032100.5767-0.06310.01890.5746-0.00490.5124-24.904584.75760.3357
192.4404-0.7072-0.73652.66870.1020.10260.0005-0.398-0.05660.0879-0.02620.12740.1227-0.191800.46530.01080.01490.6869-0.11140.5302-35.060287.193774.7094
201.4994-0.44290.3193-1.0271-1.31162.42040.06470.46330.0076-0.0286-0.0881-0.26630.01670.1976-0.00280.62640.00210.0210.34070.04540.5535-3.220374.507517.9012
210.09450.50280.22542.5876-0.02950.13830.01860.15380.74210.2160.2546-1.5678-0.03960.08640.26220.72610.07670.22320.96690.42690.89018.017690.7614-2.0251
222.2031-0.1032-0.05650.9976-0.43341.28740.05280.61140.1377-0.2739-0.1849-0.0463-0.00560.1407-0.00010.6590.007-0.02320.53460.11360.5604-9.843580.04867.9225
230.42610.6253-0.31760.25480.04380.7118-0.07860.00040.0632-0.00090.03060.3116-0.0724-0.9835-00.6541-0.0274-0.01430.6756-0.06720.5798-23.547577.947432.3031
24-0.02160.1493-0.09890.82881.61472.83490.27980.8908-1.2554-1.00560.509-1.70310.65381.69210.7840.5270.18930.19740.0192-0.57020.5227-10.359475.007154.0523
250.77670.54150.32461.5934-0.57420.6057-0.1836-0.06050.1279-0.09190.2757-0.258-0.19360.54160.02940.7051-0.19410.10020.5051-0.1140.6302-3.082495.813946.3395
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1chain 'A' and (resid 10 through 79 )
2X-RAY DIFFRACTION2chain 'A' and (resid 80 through 114 )
3X-RAY DIFFRACTION3chain 'A' and (resid 115 through 153 )
4X-RAY DIFFRACTION4chain 'A' and (resid 154 through 185 )
5X-RAY DIFFRACTION5chain 'A' and (resid 186 through 265 )
6X-RAY DIFFRACTION6chain 'A' and (resid 266 through 344 )
7X-RAY DIFFRACTION7chain 'A' and (resid 345 through 370 )
8X-RAY DIFFRACTION8chain 'A' and (resid 371 through 510 )
9X-RAY DIFFRACTION9chain 'B' and (resid 15 through 245 )
10X-RAY DIFFRACTION10chain 'B' and (resid 246 through 344 )
11X-RAY DIFFRACTION11chain 'B' and (resid 345 through 370 )
12X-RAY DIFFRACTION12chain 'B' and (resid 371 through 404 )
13X-RAY DIFFRACTION13chain 'B' and (resid 405 through 511 )
14X-RAY DIFFRACTION14chain 'C' and (resid 15 through 79 )
15X-RAY DIFFRACTION15chain 'C' and (resid 80 through 161 )
16X-RAY DIFFRACTION16chain 'C' and (resid 162 through 265 )
17X-RAY DIFFRACTION17chain 'C' and (resid 266 through 358 )
18X-RAY DIFFRACTION18chain 'C' and (resid 359 through 404 )
19X-RAY DIFFRACTION19chain 'C' and (resid 405 through 511 )
20X-RAY DIFFRACTION20chain 'D' and (resid 16 through 132 )
21X-RAY DIFFRACTION21chain 'D' and (resid 133 through 170 )
22X-RAY DIFFRACTION22chain 'D' and (resid 171 through 265 )
23X-RAY DIFFRACTION23chain 'D' and (resid 266 through 344 )
24X-RAY DIFFRACTION24chain 'D' and (resid 345 through 370 )
25X-RAY DIFFRACTION25chain 'D' and (resid 371 through 510 )

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