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- PDB-1km4: crystal structure of ODCase mutant K72A complexed with UMP -

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Basic information

Entry
Database: PDB / ID: 1km4
Titlecrystal structure of ODCase mutant K72A complexed with UMP
ComponentsOROTIDINE 5'-PHOSPHATE DECARBOXYLASE
KeywordsLYASE / TIM barrel
Function / homology
Function and homology information


orotidine-5'-phosphate decarboxylase / orotidine-5'-phosphate decarboxylase activity / 'de novo' UMP biosynthetic process / 'de novo' pyrimidine nucleobase biosynthetic process
Similarity search - Function
: / Orotidine 5'-phosphate decarboxylase / Orotidine 5'-phosphate decarboxylase, active site / Orotidine 5'-phosphate decarboxylase active site. / Orotidine 5'-phosphate decarboxylase domain / Orotidine 5'-phosphate decarboxylase / HUMPS family / Orotidine 5'-phosphate decarboxylase / HUMPS family / Ribulose-phosphate binding barrel / Aldolase class I / Aldolase-type TIM barrel ...: / Orotidine 5'-phosphate decarboxylase / Orotidine 5'-phosphate decarboxylase, active site / Orotidine 5'-phosphate decarboxylase active site. / Orotidine 5'-phosphate decarboxylase domain / Orotidine 5'-phosphate decarboxylase / HUMPS family / Orotidine 5'-phosphate decarboxylase / HUMPS family / Ribulose-phosphate binding barrel / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
URIDINE-5'-MONOPHOSPHATE / Orotidine 5'-phosphate decarboxylase
Similarity search - Component
Biological speciesMethanothermobacter thermautotrophicus (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.5 Å
AuthorsWu, N. / Gillon, W. / Pai, E.F.
CitationJournal: Biochemistry / Year: 2002
Title: Mapping the active site-ligand interactions of orotidine 5'-monophosphate decarboxylase by crystallography.
Authors: Wu, N. / Gillon, W. / Pai, E.F.
History
DepositionDec 13, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 28, 2002Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_special_symmetry ...database_2 / pdbx_struct_special_symmetry / 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 1.4Feb 14, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: OROTIDINE 5'-PHOSPHATE DECARBOXYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)27,0622
Polymers26,7381
Non-polymers3241
Water4,882271
1
A: OROTIDINE 5'-PHOSPHATE DECARBOXYLASE
hetero molecules

A: OROTIDINE 5'-PHOSPHATE DECARBOXYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,1244
Polymers53,4752
Non-polymers6482
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation3_656-x+1,y,-z+3/21
2
A: OROTIDINE 5'-PHOSPHATE DECARBOXYLASE
hetero molecules

A: OROTIDINE 5'-PHOSPHATE DECARBOXYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)54,1244
Polymers53,4752
Non-polymers6482
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation4_566x,-y+1,-z+11
Buried area3500 Å2
ΔGint-35 kcal/mol
Surface area15160 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)58.184, 103.161, 73.687
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Cell settingorthorhombic
Space group name H-MC2221
Components on special symmetry positions
IDModelComponents
11A-100-

PHE

21A-3001-

HOH

Detailsthe other half of the biological dimer is generated by two fold axis -x, -y, z+1/2

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Components

#1: Protein OROTIDINE 5'-PHOSPHATE DECARBOXYLASE / / E.C.4.1.1.23 / OMP DECARBOXYLASE / OMPDCASE


Mass: 26737.744 Da / Num. of mol.: 1 / Mutation: K72A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Methanothermobacter thermautotrophicus (archaea)
Plasmid: pET15b / Production host: Escherichia coli (E. coli)
References: UniProt: O26232, orotidine-5'-phosphate decarboxylase
#2: Chemical ChemComp-U / URIDINE-5'-MONOPHOSPHATE / Uridine monophosphate


Type: RNA linking / Mass: 324.181 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H13N2O9P
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 271 / 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: 2.07 Å3/Da / Density % sol: 40.49 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: trisodium citrate, pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Crystal grow
*PLUS
pH: 6.5 / Details: Wu, N., (2000) Acta Crystallogr., Sect.D, 56, 912.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
111 mg/mlprotein1drop
21.1 Mtrisodium citrate1reservoirpH6.5
33 %glycerol1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 14-BM-C / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Jul 15, 2000 / Details: bent conical Si-mirror (Rh coating)
RadiationMonochromator: bend cylindrical Ge(111) monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.5→30 Å / Num. all: 35285 / Num. obs: 35285 / % possible obs: 98.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Biso Wilson estimate: 11.3 Å2
Reflection shellResolution: 1.5→1.59 Å / % possible all: 96.9
Reflection
*PLUS
Highest resolution: 1.5 Å / Lowest resolution: 30 Å / Num. measured all: 506092 / Rmerge(I) obs: 0.043

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Processing

Software
NameClassification
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.5→29.98 Å / Rfactor Rfree error: 0.004 / Data cutoff high absF: 963758.8 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: CNS library
RfactorNum. reflection% reflectionSelection details
Rfree0.183 2649 7.5 %RANDOM
Rwork0.155 ---
all0.155 35285 --
obs0.155 35285 98.3 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 39.6794 Å2 / ksol: 0.38074 e/Å3
Displacement parametersBiso mean: 12.4 Å2
Baniso -1Baniso -2Baniso -3
1--0.64 Å20 Å20 Å2
2---1.41 Å20 Å2
3---2.04 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.15 Å0.12 Å
Luzzati d res low-5 Å
Luzzati sigma a--0.05 Å
Refinement stepCycle: LAST / Resolution: 1.5→29.98 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1601 0 21 271 1893
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.011
X-RAY DIFFRACTIONc_angle_deg1.6
X-RAY DIFFRACTIONc_dihedral_angle_d22.7
X-RAY DIFFRACTIONc_improper_angle_d1.28
X-RAY DIFFRACTIONc_mcbond_it1.351.5
X-RAY DIFFRACTIONc_mcangle_it1.922
X-RAY DIFFRACTIONc_scbond_it2.62
X-RAY DIFFRACTIONc_scangle_it3.722.5
LS refinement shellResolution: 1.5→1.59 Å / Rfactor Rfree error: 0.009 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.17 330 5.8 %
Rwork0.145 5369 -
obs--96.9 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION3U5P.PARAMU5P.TOP
Refinement
*PLUS
Highest resolution: 1.5 Å / Lowest resolution: 30 Å / Rfactor obs: 0.155 / Rfactor Rfree: 0.183 / Rfactor Rwork: 0.155
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg22.7
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg1.28
LS refinement shell
*PLUS
Rfactor Rfree: 0.17 / Rfactor Rwork: 0.145

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