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- PDB-1pvn: The crystal structure of the complex between IMP dehydrogenase ca... -

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Basic information

Entry
Database: PDB / ID: 1pvn
TitleThe crystal structure of the complex between IMP dehydrogenase catalytic domain and a transition state analogue MZP
ComponentsInosine-5'-monophosphate dehydrogenase
KeywordsOXIDOREDUCTASE / Transition state analogue / IMP dehydrogenase / Mizoribine 5'-monophosphate / distal flap / general base / drug selectivity
Function / homology
Function and homology information


IMP dehydrogenase activity / IMP dehydrogenase / GMP biosynthetic process / GTP biosynthetic process / nucleotide binding / protein-containing complex / identical protein binding / metal ion binding / cytoplasm
Similarity search - Function
IMP dehydrogenase / GMP reductase domain / Inosine-5'-monophosphate dehydrogenase / IMP dehydrogenase / GMP reductase, conserved site / IMP dehydrogenase / GMP reductase signature. / IMP dehydrogenase/GMP reductase / IMP dehydrogenase / GMP reductase domain / CBS domain superfamily / CBS domain / CBS domain / CBS domain profile. ...IMP dehydrogenase / GMP reductase domain / Inosine-5'-monophosphate dehydrogenase / IMP dehydrogenase / GMP reductase, conserved site / IMP dehydrogenase / GMP reductase signature. / IMP dehydrogenase/GMP reductase / IMP dehydrogenase / GMP reductase domain / CBS domain superfamily / CBS domain / CBS domain / CBS domain profile. / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
: / Chem-MZP / Inosine-5'-monophosphate dehydrogenase
Similarity search - Component
Biological speciesTritrichomonas foetus (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsGan, L. / Seyedsayamdost, M. / Shuto, S. / Matsuda, A. / Petsko, G.A. / Hedstrom, L.
CitationJournal: Biochemistry / Year: 2003
Title: The Immunosuppressive Agent Mizoribine Monophosphate Forms a Transition State Analogue Complex with Inosine Monophosphate Dehydrogenase
Authors: Gan, L. / Seyedsayamdost, M. / Shuto, S. / Matsuda, A. / Petsko, G.A. / Hedstrom, L.
History
DepositionJun 27, 2003Deposition site: RCSB / Processing site: RCSB
SupersessionJul 22, 2003ID: 1MWF
Revision 1.0Jul 22, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 2, 2017Group: Source and taxonomy / Category: entity_src_gen
Revision 1.4Aug 16, 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_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_asym_id / _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.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_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_asym_id / _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_asym_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_conn.ptnr2_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Remark 999SEQUENCE IMP dehydrogenase in this structure is a subdomain-deletion mutant. It only contains the ...SEQUENCE IMP dehydrogenase in this structure is a subdomain-deletion mutant. It only contains the catalytic domain with residues 2 to 100 and 227 to 503. Residues 100, 227-230 and 495-503 are disordered in the structure

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Inosine-5'-monophosphate dehydrogenase
B: Inosine-5'-monophosphate dehydrogenase
C: Inosine-5'-monophosphate dehydrogenase
D: Inosine-5'-monophosphate dehydrogenase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)167,24622
Polymers164,8524
Non-polymers2,39418
Water17,475970
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area23810 Å2
ΔGint-98 kcal/mol
Surface area48220 Å2
MethodPISA
Unit cell
Length a, b, c (Å)96.754, 112.566, 159.756
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
Inosine-5'-monophosphate dehydrogenase / IMP dehydrogenase / IMPDH / IMPD


Mass: 41212.914 Da / Num. of mol.: 4 / Fragment: Catalytic core domain
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Tritrichomonas foetus (eukaryote) / Gene: IMPDH / Plasmid: pKK233-3 / Production host: Escherichia coli (E. coli) / Strain (production host): H712 / References: UniProt: P50097, IMP dehydrogenase
#2: Chemical
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: K
#3: Chemical
ChemComp-MZP / 4-CARBAMOYL-1-BETA-D-RIBOFURANOSYL-IMIDAZOLIUM-5-OLATE-5'-PHOSPHATE


Mass: 337.180 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C9H12N3O9P
#4: Chemical
ChemComp-TRS / 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / TRIS BUFFER


Mass: 122.143 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C4H12NO3 / Comment: pH buffer*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 970 / 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: 2.64 Å3/Da / Density % sol: 53.37 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.25
Details: PEG 10,000, MES, Glycerol, KCl, Tris, pH 6.25, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal grow
*PLUS
pH: 7.5 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
12.0 mg/mlprotein1drop
220 mMTris-HCl1droppH7.5
35 %glycerol1drop
40.6 mMMZP1drop
51 mMdithiothreitol1drop
610 %PEG100001reservoir
7100 mMMES1reservoirpH6.25
8120 mM1reservoirKCl
920 %glycerol1reservoir
101 mMdithiothreitol1reservoir

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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: Sep 23, 2001
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2→30 Å / Num. all: 117771 / Num. obs: 114993 / % possible obs: 99.1 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 1 / Redundancy: 16 % / Biso Wilson estimate: 11.9 Å2 / Rmerge(I) obs: 0.069 / Net I/σ(I): 22
Reflection shellResolution: 2→2.07 Å / Rmerge(I) obs: 0.181 / Mean I/σ(I) obs: 7.8 / Num. unique all: 11629 / % possible all: 99.9
Reflection
*PLUS
Num. obs: 113342 / Num. measured all: 1775920
Reflection shell
*PLUS
% possible obs: 99.9 %

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Processing

Software
NameVersionClassification
CNS1refinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: Tetramer of IMP dehydrogenase, PDB entry 1LRT

1lrt


Resolution: 2→29.71 Å / Rfactor Rfree error: 0.002 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 1 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.222 11509 10 %RANDOM
Rwork0.196 ---
obs0.196 113342 97.4 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 52.1099 Å2 / ksol: 0.39474 e/Å3
Displacement parametersBiso mean: 21.5 Å2
Baniso -1Baniso -2Baniso -3
1-2.75 Å20 Å20 Å2
2---1.7 Å20 Å2
3----1.04 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.24 Å0.22 Å
Luzzati d res low-5 Å
Luzzati sigma a0.15 Å0.1 Å
Refinement stepCycle: LAST / Resolution: 2→29.71 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms11084 0 144 970 12198
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.01
X-RAY DIFFRACTIONc_angle_deg1.7
X-RAY DIFFRACTIONc_dihedral_angle_d22.7
X-RAY DIFFRACTIONc_improper_angle_d1.47
X-RAY DIFFRACTIONc_mcbond_it1.11.5
X-RAY DIFFRACTIONc_mcangle_it1.652
X-RAY DIFFRACTIONc_scbond_it22
X-RAY DIFFRACTIONc_scangle_it2.92.5
LS refinement shellResolution: 2→2.13 Å / Rfactor Rfree error: 0.006 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.239 1801 9.8 %
Rwork0.21 16614 -
obs-16685 94.6 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER.PARAMWATER.TOP
X-RAY DIFFRACTION3ION.PARAMION.TOP
X-RAY DIFFRACTION4MZP.PARMZP.TOP
X-RAY DIFFRACTION5TRIS.PARTRIS.TOP
X-RAY DIFFRACTION7&_1_PARAMETER_INFILE_7&_1_TOPOLOGY_INFILE_7
Refinement
*PLUS
Highest resolution: 2 Å / Lowest resolution: 8 Å / Num. reflection Rfree: 11341
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1.28
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg22.6
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.76

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