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Basic information

Entry
Database: PDB / ID: 9zoi
TitleCrystal structure of Phosphoribosylaminoimidazole carboxylase from Burkholderia xenovorans (ATP complex)
ComponentsN5-carboxyaminoimidazole ribonucleotide synthase
KeywordsLYASE / SSGCID / STRUCTURAL GENOMICS / SEATTLE STRUCTURAL GENOMICS CENTER FOR INFECTIOUS DISEASE / TRANSFERASE / Phosphoribosylaminoimidazole carboxylase
Function / homology
Function and homology information


5-(carboxyamino)imidazole ribonucleotide synthase / 5-(carboxyamino)imidazole ribonucleotide synthase activity / phosphoribosylaminoimidazole carboxylase activity / 'de novo' IMP biosynthetic process / ATP binding / metal ion binding / cytosol
Similarity search - Function
Phosphoribosylaminoimidazole carboxylase, ATPase subunit / Phosphoribosylaminoimidazole carboxylase, C-terminal domain / Phosphoribosylaminoimidazole carboxylase C-terminal domain / : / Ribonucleotide synthetase preATP-grasp domain / ATP-grasp fold, ATP-dependent carboxylate-amine ligase-type / ATP-grasp domain / Rudiment single hybrid motif / ATP-grasp fold, subdomain 1 / Pre-ATP-grasp domain superfamily ...Phosphoribosylaminoimidazole carboxylase, ATPase subunit / Phosphoribosylaminoimidazole carboxylase, C-terminal domain / Phosphoribosylaminoimidazole carboxylase C-terminal domain / : / Ribonucleotide synthetase preATP-grasp domain / ATP-grasp fold, ATP-dependent carboxylate-amine ligase-type / ATP-grasp domain / Rudiment single hybrid motif / ATP-grasp fold, subdomain 1 / Pre-ATP-grasp domain superfamily / ATP-grasp fold / ATP-grasp fold profile.
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / DI(HYDROXYETHYL)ETHER / TRIETHYLENE GLYCOL / N5-carboxyaminoimidazole ribonucleotide synthase
Similarity search - Component
Biological speciesParaburkholderia xenovorans LB400 (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.93 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 Phosphoribosylaminoimidazole carboxylase from Burkholderia xenovorans (ATP complex)
Authors: Liu, L. / Lovell, S. / Battaile, K.P.
History
DepositionDec 15, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 24, 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: N5-carboxyaminoimidazole ribonucleotide synthase
B: N5-carboxyaminoimidazole ribonucleotide synthase
C: N5-carboxyaminoimidazole ribonucleotide synthase
D: N5-carboxyaminoimidazole ribonucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)173,02223
Polymers170,0384
Non-polymers2,98419
Water13,151730
1
A: N5-carboxyaminoimidazole ribonucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,1715
Polymers42,5101
Non-polymers6624
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: N5-carboxyaminoimidazole ribonucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,4227
Polymers42,5101
Non-polymers9126
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
3
C: N5-carboxyaminoimidazole ribonucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,1575
Polymers42,5101
Non-polymers6484
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
4
D: N5-carboxyaminoimidazole ribonucleotide synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,2726
Polymers42,5101
Non-polymers7625
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)67.007, 170.436, 170.508
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

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Protein , 1 types, 4 molecules ABCD

#1: Protein
N5-carboxyaminoimidazole ribonucleotide synthase / N5-CAIR synthase / 5-(carboxyamino)imidazole ribonucleotide synthetase


Mass: 42509.523 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Paraburkholderia xenovorans LB400 (bacteria)
Gene: purK, Bxe_A0694 / Plasmid: BuxeA.00036.a.B2 / Production host: Escherichia coli BL21(DE3) (bacteria)
References: UniProt: Q13UJ9, 5-(carboxyamino)imidazole ribonucleotide synthase

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Non-polymers , 8 types, 749 molecules

#2: Chemical ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP, energy-carrying molecule*YM
#3: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H10O3
#4: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: Mg
#5: Chemical ChemComp-PGE / TRIETHYLENE GLYCOL


Mass: 150.173 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H14O4
#6: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C3H8O3
#7: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM
#8: Chemical ChemComp-PG4 / TETRAETHYLENE GLYCOL


Mass: 194.226 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C8H18O5 / Comment: precipitant*YM
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 730 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationN

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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: 2.86 Å3/Da / Density % sol: 57.04 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / pH: 5.5
Details: BRK E6: 100 mM sodium citrate, pH 5.5, 200 mM sodium malonate, pH 5.0, 20% PEG 2000 MME. BuxeA.00036.a.B2.PW39468 at 23.8 mg/mL. Cocrystallization with 3mM ATP, plate 20558 E6 drop 1, Puck: ...Details: BRK E6: 100 mM sodium citrate, pH 5.5, 200 mM sodium malonate, pH 5.0, 20% PEG 2000 MME. BuxeA.00036.a.B2.PW39468 at 23.8 mg/mL. Cocrystallization with 3mM ATP, plate 20558 E6 drop 1, Puck: PSL-1913, Cryo: 20% PEG 200 + 80% crystallant

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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: Nov 10, 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: 1.93→47.28 Å / Num. obs: 146557 / % possible obs: 99.5 % / Redundancy: 13.7 % / CC1/2: 0.998 / Rmerge(I) obs: 0.146 / Rpim(I) all: 0.041 / Rrim(I) all: 0.151 / Χ2: 1.27 / Net I/σ(I): 15 / Num. measured all: 2005611
Reflection shellResolution: 1.93→1.98 Å / % possible obs: 98.8 % / Redundancy: 14.4 % / Rmerge(I) obs: 1.957 / Num. measured all: 152668 / Num. unique obs: 10626 / CC1/2: 0.759 / Rpim(I) all: 0.53 / Rrim(I) all: 2.028 / Χ2: 0.95 / 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: 1.93→44.81 Å / SU ML: 0.22 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 20.99 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.1956 7285 4.98 %
Rwork0.1691 --
obs0.1704 146422 99.44 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 1.93→44.81 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms11473 0 185 730 12388
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00912028
X-RAY DIFFRACTIONf_angle_d1.03316415
X-RAY DIFFRACTIONf_dihedral_angle_d13.0084433
X-RAY DIFFRACTIONf_chiral_restr0.061881
X-RAY DIFFRACTIONf_plane_restr0.0092154
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.93-1.950.33231960.3184653X-RAY DIFFRACTION100
1.95-1.970.32382140.29254535X-RAY DIFFRACTION97
1.97-20.28112390.25944570X-RAY DIFFRACTION100
2-2.020.28112590.24564527X-RAY DIFFRACTION98
2.02-2.050.25382220.23264587X-RAY DIFFRACTION99
2.05-2.080.2512730.22564580X-RAY DIFFRACTION100
2.08-2.110.2552310.2164540X-RAY DIFFRACTION98
2.11-2.140.24331890.20224642X-RAY DIFFRACTION100
2.14-2.170.22722380.19334559X-RAY DIFFRACTION98
2.17-2.210.21292760.19234574X-RAY DIFFRACTION100
2.21-2.250.24932480.19384531X-RAY DIFFRACTION98
2.25-2.290.23542420.18714635X-RAY DIFFRACTION100
2.29-2.330.22192550.18524591X-RAY DIFFRACTION99
2.33-2.380.22762200.17134642X-RAY DIFFRACTION100
2.38-2.430.19132280.16784562X-RAY DIFFRACTION99
2.43-2.490.19362240.16284668X-RAY DIFFRACTION99
2.49-2.550.22532270.16534641X-RAY DIFFRACTION100
2.55-2.620.23862340.1614614X-RAY DIFFRACTION99
2.62-2.70.19122250.16174661X-RAY DIFFRACTION100
2.7-2.780.19542440.17244682X-RAY DIFFRACTION100
2.78-2.880.21842320.18064603X-RAY DIFFRACTION100
2.88-30.21372580.18894655X-RAY DIFFRACTION100
3-3.130.20482540.1834654X-RAY DIFFRACTION100
3.13-3.30.20122420.17634675X-RAY DIFFRACTION100
3.3-3.510.19382660.17164671X-RAY DIFFRACTION100
3.51-3.780.17962670.15414686X-RAY DIFFRACTION100
3.78-4.160.18142790.1354717X-RAY DIFFRACTION100
4.16-4.760.13992780.11734713X-RAY DIFFRACTION100
4.76-5.990.15652550.14024797X-RAY DIFFRACTION100
5.99-44.810.1762700.17334972X-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)
10.6873-0.14010.18241.18890.32160.3264-0.01450.08040.12880.2070.0254-0.10140.03110.182300.29010.00210.00020.292-0.02010.296-16.212447.1174-15.5294
20.2120.0617-0.1130.07660.16030.12790.19660.35130.3134-0.1546-0.1704-0.0691-0.04350.134300.35310.0292-0.00580.36040.03920.3226-33.986947.9693-34.5436
30.484-0.2178-0.29970.74920.14230.53890.1382-0.0033-0.04420.0437-0.03010.1809-0.0258-0.104700.28320.0261-0.02520.31440.00530.2983-48.135144.7235-29.5232
41.0924-0.15960.12851.2227-0.33770.5470.0760.2063-0.0696-0.145-0.07440.08360.05580.0114-00.26650.039-0.00950.2917-0.04130.2379-25.904830.6105-28.3824
50.90970.0766-0.04880.5932-0.47010.47670.0283-0.064-0.07730.08410.03990.27140.0077-0.2121-00.29970.01380.0270.3348-0.0270.3392-32.864423.6087-9.2085
60.2497-0.35760.23940.47350.00570.64-0.02780.05310.12740.04340.00870.0492-0.20920.042200.35620.0233-0.01570.3456-0.03060.3262-12.013531.7080.5034
70.64860.04410.5365-0.0043-0.14711.3081-0.00610.0278-0.04560.1205-0.02550.0054-0.00520.0817-00.3041-0.015-0.0130.3019-0.00080.27132.506816.981810.2702
80.36870.3525-0.2690.359-0.16930.45090.09310.85730.4223-0.2066-0.1589-0.2334-0.40030.61090.00550.3444-0.0697-0.03090.70520.08730.339322.652913.27485.5591
90.1252-0.15640.42370.5601-0.27960.3370.10520.0418-0.08330.0273-0.0993-0.12220.16780.1967-00.28770.0224-0.00690.3805-0.03150.27333.235510.4688-4.0799
100.49220.0397-0.03230.5553-0.21580.53120.03640.04460.0202-0.0024-0.0296-0.03830.06940.073300.26830.028-0.00330.2978-0.02550.2532-2.3617.6378-10.4345
110.87780.0462-0.16010.2733-0.30070.37510.10050.025-0.1148-0.05630.0592-0.25160.12920.3699-00.27530.0310.02120.3687-0.05250.31543.372925.0789-19.6452
120.58330.4966-0.22280.85090.31770.69590.00580.0967-0.22160.1322-0.1460.00010.2597-0.0955-00.3576-0.01680.0260.3283-0.07710.3677-3.823-20.3998-50.8287
130.9201-0.3421-0.62750.17020.12760.75910.0267-0.07410.1763-0.04920.0351-0.0281-0.1090.0843-00.3133-0.02230.01210.2996-0.07880.331713.4409-3.898-50.1373
140.55850.0778-0.1030.2644-0.27560.7672-0.0827-0.20720.06760.11050.0695-0.15220.04830.58420.00370.3210.091-0.02590.5496-0.14370.401213.0212-11.6041-26.536
150.1426-0.051-0.19240.12640.04450.18580.30930.2881-0.025-0.4629-0.17740.0560.3663-0.036800.56890.0670.02170.3629-0.05360.4652-3.89-22.7935-24.8505
160.9698-0.53270.49121.0504-0.15630.63840.0445-0.2527-0.37090.0851-0.00040.28770.7257-0.13310.04140.7042-0.0614-0.03360.32610.00070.5359-11.9272-28.4771-18.051
170.191-0.17090.11630.1701-0.13610.2024-0.0132-0.24090.14240.49910.14411.19490.3278-0.84770.06240.5058-0.19190.17221.03320.03071.0113-38.1297-17.7428-5.3543
180.3883-0.06950.03851.1150.19390.9223-0.0193-0.1163-0.08750.1279-0.0910.25460.0715-0.4435-00.34650.00710.01060.4552-0.09420.3744-19.4457-7.7946-13.8332
190.2467-0.0764-0.16230.4053-0.14950.42490.03950.0448-0.10640.03970.0020.01780.1598-0.0867-00.31480.0237-0.00720.365-0.08860.3326-15.66-9.1672-31.8114
200.4763-0.16170.3770.1322-0.08770.2112-0.0359-0.08790.1116-0.0630.02610.3683-0.0082-0.35400.34090.0089-0.02330.4355-0.10220.4181-22.1836-4.5514-34.4069
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection details
1X-RAY DIFFRACTION1chain 'A' and (resid 8 through 96 )
2X-RAY DIFFRACTION2chain 'A' and (resid 97 through 143 )
3X-RAY DIFFRACTION3chain 'A' and (resid 144 through 195 )
4X-RAY DIFFRACTION4chain 'A' and (resid 196 through 330 )
5X-RAY DIFFRACTION5chain 'A' and (resid 331 through 397 )
6X-RAY DIFFRACTION6chain 'B' and (resid 8 through 59 )
7X-RAY DIFFRACTION7chain 'B' and (resid 60 through 157 )
8X-RAY DIFFRACTION8chain 'B' and (resid 158 through 183 )
9X-RAY DIFFRACTION9chain 'B' and (resid 184 through 225 )
10X-RAY DIFFRACTION10chain 'B' and (resid 226 through 357 )
11X-RAY DIFFRACTION11chain 'B' and (resid 358 through 397 )
12X-RAY DIFFRACTION12chain 'C' and (resid 8 through 96 )
13X-RAY DIFFRACTION13chain 'C' and (resid 97 through 330 )
14X-RAY DIFFRACTION14chain 'C' and (resid 331 through 396 )
15X-RAY DIFFRACTION15chain 'D' and (resid 8 through 35 )
16X-RAY DIFFRACTION16chain 'D' and (resid 36 through 123 )
17X-RAY DIFFRACTION17chain 'D' and (resid 124 through 182 )
18X-RAY DIFFRACTION18chain 'D' and (resid 183 through 293 )
19X-RAY DIFFRACTION19chain 'D' and (resid 294 through 357 )
20X-RAY DIFFRACTION20chain 'D' and (resid 358 through 397 )

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