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- PDB-2fwp: Structure of PurE (N5-carboxyaminoimidazole ribonucleotide mutase... -

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Basic information

Entry
Database: PDB / ID: 2fwp
TitleStructure of PurE (N5-carboxyaminoimidazole ribonucleotide mutase) H59N from the acidophilic bacterium Acetobacter aceti, bound to isocair
ComponentsN5-carboxyaminoimidazole ribonucleotide mutase
KeywordsLYASE / acidophile / PurE / purine biosynthesis / isocair
Function / homology
Function and homology information


5-(carboxyamino)imidazole ribonucleotide mutase / 5-(carboxyamino)imidazole ribonucleotide mutase activity / 'de novo' IMP biosynthetic process
Similarity search - Function
Class I PurE / PurE, prokaryotic type / PurE domain / AIR carboxylase / AIR carboxylase / Rossmann fold - #1970 / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
CITRIC ACID / Chem-ICR / N5-carboxyaminoimidazole ribonucleotide mutase
Similarity search - Component
Biological speciesAcetobacter aceti (bacteria)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.85 Å
AuthorsStarks, C.M. / Kappock, T.J.
CitationJournal: Biochemistry / Year: 2006
Title: Biochemical and Structural Studies of N(5)-Carboxyaminoimidazole Ribonucleotide Mutase from the Acidophilic Bacterium Acetobacter aceti.
Authors: Constantine, C.Z. / Starks, C.M. / Mill, C.P. / Ransome, A.E. / Karpowicz, S.J. / Francois, J.A. / Goodman, R.A. / Kappock, T.J.
History
DepositionFeb 2, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 13, 2006Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 20, 2021Group: Database references / Derived calculations / Category: database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 30, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: N5-carboxyaminoimidazole ribonucleotide mutase
B: N5-carboxyaminoimidazole ribonucleotide mutase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)38,2494
Polymers37,7172
Non-polymers5312
Water5,693316
1
A: N5-carboxyaminoimidazole ribonucleotide mutase
B: N5-carboxyaminoimidazole ribonucleotide mutase
hetero molecules

A: N5-carboxyaminoimidazole ribonucleotide mutase
B: N5-carboxyaminoimidazole ribonucleotide mutase
hetero molecules

A: N5-carboxyaminoimidazole ribonucleotide mutase
B: N5-carboxyaminoimidazole ribonucleotide mutase
hetero molecules

A: N5-carboxyaminoimidazole ribonucleotide mutase
B: N5-carboxyaminoimidazole ribonucleotide mutase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)152,99516
Polymers150,8698
Non-polymers2,1258
Water1448
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_665-x+1,-y+1,z1
crystal symmetry operation3_655-y+1,x,z1
crystal symmetry operation4_565y,-x+1,z1
Unit cell
Length a, b, c (Å)98.683, 98.683, 165.590
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number97
Space group name H-MI422

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Components

#1: Protein N5-carboxyaminoimidazole ribonucleotide mutase


Mass: 18858.666 Da / Num. of mol.: 2 / Mutation: H59N
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Acetobacter aceti (bacteria) / Strain: 1023 / Gene: purE / Plasmid: pET-23a(+) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21-CodonPlus / References: UniProt: Q2QJL3
#2: Chemical ChemComp-ICR / (4R)-5-IMINO-1-(5-O-PHOSPHONO-BETA-D-RIBOFURANOSYL)-4,5-DIHYDRO-1H-IMIDAZOLE-4-CARBOXYLIC ACID


Mass: 339.196 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H14N3O9P
#3: Chemical ChemComp-CIT / CITRIC ACID / Citric acid


Mass: 192.124 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H8O7
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 316 / 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: 2.67 Å3/Da / Density % sol: 53.94 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 5.4
Details: 22% PEG 4000, 190 mM ammonium acetate, 90 mM sodium citrate, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 111 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.54 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Jul 29, 2005
RadiationMonochromator: graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 1.85→50 Å / Num. obs: 33580 / % possible obs: 95.2 % / Observed criterion σ(I): -3 / Redundancy: 5.8 % / Biso Wilson estimate: 19 Å2 / Rsym value: 0.05 / Net I/σ(I): 24.7
Reflection shellResolution: 1.85→1.92 Å / Redundancy: 2 % / Mean I/σ(I) obs: 2.3 / Num. unique all: 2687 / Rsym value: 0.298 / % possible all: 77.4

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB entry 1U11

1u11


Resolution: 1.85→42.39 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 395803.03 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.225 1599 4.8 %RANDOM
Rwork0.198 ---
obs0.198 33561 95 %-
all-33580 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 47.1845 Å2 / ksol: 0.331806 e/Å3
Displacement parametersBiso mean: 25.2 Å2
Baniso -1Baniso -2Baniso -3
1--1.47 Å20 Å20 Å2
2---1.47 Å20 Å2
3---2.94 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.26 Å0.21 Å
Luzzati d res low-5 Å
Luzzati sigma a0.3 Å0.28 Å
Refinement stepCycle: LAST / Resolution: 1.85→42.39 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2312 0 35 316 2663
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.3
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d22.1
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.77
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.291.5
X-RAY DIFFRACTIONc_mcangle_it2.032
X-RAY DIFFRACTIONc_scbond_it2.032
X-RAY DIFFRACTIONc_scangle_it2.852.5
LS refinement shellResolution: 1.85→1.92 Å / Rfactor Rfree error: 0.03 / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.335 121 4.5 %
Rwork0.325 2549 -
obs-2670 77.1 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2Cwater.top
X-RAY DIFFRACTION3water_rep.paramC
X-RAY DIFFRACTION4citrate.paramcitrate.top

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