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- PDB-4iu5: Crystal structure of Leishmania mexicana arginase in complex with... -

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Basic information

Entry
Database: PDB / ID: 4iu5
TitleCrystal structure of Leishmania mexicana arginase in complex with catalytic product L-ornithine
ComponentsArginase
KeywordsHYDROLASE / arginase fold
Function / homology
Function and homology information


arginine metabolic process / arginase / arginase activity / urea cycle / metal ion binding
Similarity search - Function
Ureohydrolase domain / Arginase / Ureohydrolase, manganese-binding site / Arginase family signature. / Ureohydrolase / Arginase family / Arginase family profile. / Arginase; Chain A / Ureohydrolase domain superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
: / L-ornithine / Arginase
Similarity search - Component
Biological speciesLeishmania mexicana (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.95 Å
AuthorsD'Antonio, E.L. / Ullman, B. / Roberts, S.C. / Gaur Dixit, U. / Wilson, M.E. / Hai, Y. / Christianson, D.W.
CitationJournal: Arch.Biochem.Biophys. / Year: 2013
Title: Crystal structure of arginase from Leishmania mexicana and implications for the inhibition of polyamine biosynthesis in parasitic infections.
Authors: D'Antonio, E.L. / Ullman, B. / Roberts, S.C. / Dixit, U.G. / Wilson, M.E. / Hai, Y. / Christianson, D.W.
History
DepositionJan 19, 2013Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 30, 2013Provider: repository / Type: Initial release
Revision 1.1May 1, 2013Group: Database references
Revision 1.2May 22, 2013Group: Database references
Revision 1.3Sep 20, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / 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 / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Arginase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,3695
Polymers36,0341
Non-polymers3344
Water1,22568
1
A: Arginase
hetero molecules

A: Arginase
hetero molecules

A: Arginase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)109,10615
Polymers108,1033
Non-polymers1,00212
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-y,x-y,z1
crystal symmetry operation3_555-x+y,-x,z1
Buried area6440 Å2
ΔGint-41 kcal/mol
Surface area31960 Å2
MethodPISA
Unit cell
Length a, b, c (Å)89.617, 89.617, 114.359
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number146
Space group name H-MH3

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Components

#1: Protein Arginase /


Mass: 36034.449 Da / Num. of mol.: 1 / Fragment: UNP residues 13-329
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Leishmania mexicana (eukaryote) / Gene: ARG / Plasmid: pET200/D-TOPO / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: Q6TUJ5, arginase
#2: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#3: Chemical ChemComp-ORN / L-ornithine / Ornithine


Type: L-peptide linking / Mass: 132.161 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H12N2O2
#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 68 / 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: 2.45 Å3/Da / Density % sol: 49.85 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 8.5
Details: 3 uL protein solution (7.0 mg/mL delta-12-LmARG, 45 mM bicine, pH 8.5, 10 mM DL-alpha-difluoromethylornithine (DFMO), 90 uM manganese chloride, 4.5% v/v glycerol, 1.8 mM BME) + 3 uL ...Details: 3 uL protein solution (7.0 mg/mL delta-12-LmARG, 45 mM bicine, pH 8.5, 10 mM DL-alpha-difluoromethylornithine (DFMO), 90 uM manganese chloride, 4.5% v/v glycerol, 1.8 mM BME) + 3 uL precipitant solution (0.1 M HEPES, pH 7.5, 12% w/v PEG3350) equilibrated against 500 uL precipitant solution on a siliconized cover slide, crystals grow within one week, soaked in 10 uL 50 mM L-ornithine, 0.1 M HEPPS, pH 8.5, 15% w/v PEG3350 for 23 hours, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X29A / Wavelength: 1.075 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Apr 18, 2012
RadiationMonochromator: Cryogenically cooled double-crystal Si(111) with horizontally focusing, sagitally bent second crystal with 4:1 magnification ratio and vertically focusing mirror
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.075 Å / Relative weight: 1
Reflection twinOperator: h,-h-k,-l / Fraction: 0.3
ReflectionResolution: 1.95→50 Å / Num. all: 24954 / Num. obs: 24877 / % possible obs: 99.9 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 4.7 % / Rmerge(I) obs: 0.077 / Rsym value: 0.077 / Net I/σ(I): 20.195
Reflection shellResolution: 1.95→2.02 Å / Redundancy: 4.6 % / Rmerge(I) obs: 0.624 / Mean I/σ(I) obs: 2.711 / Rsym value: 0.624 / % possible all: 100

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Processing

Software
NameClassification
CBASSdata collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 4ITY

4ity


Resolution: 1.95→50 Å / Isotropic thermal model: ISOTROPIC / Cross valid method: THROUGHOUT / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2064 2181 -RANDOM
Rwork0.1643 21573 --
all0.1643 24954 --
obs0.1643 23754 95.2 %-
Solvent computationBsol: 58.5924 Å2
Displacement parametersBiso mean: 53 Å2
Baniso -1Baniso -2Baniso -3
1--5.278 Å20 Å20 Å2
2---5.278 Å20 Å2
3---10.557 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.34 Å0.31 Å
Luzzati d res low-5 Å
Luzzati sigma a0.35 Å0.34 Å
Refinement stepCycle: LAST / Resolution: 1.95→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2361 0 17 68 2446
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_mcbond_it1.6161.5
X-RAY DIFFRACTIONc_scbond_it1.8942
X-RAY DIFFRACTIONc_mcangle_it2.8942
X-RAY DIFFRACTIONc_scangle_it3.0382.5
X-RAY DIFFRACTIONc_bond_d0.008
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_dihedral_angle_d22.3
X-RAY DIFFRACTIONc_improper_angle_d0.87
LS refinement shellResolution: 1.95→2.02 Å /
Num. reflection% reflection
Rfree189 -
obs1953 79 %
Xplor file
Refine-IDSerial noParam file
X-RAY DIFFRACTION1CNS_TOPPAR:protein_rep.param
X-RAY DIFFRACTION2CNS_TOPPAR:ion.param
X-RAY DIFFRACTION3CNS_TOPPAR:water_rep.param
X-RAY DIFFRACTION4cis_peptide.param
X-RAY DIFFRACTION5orn_gol.par

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