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- PDB-1gro: REGULATORY AND CATALYTIC MECHANISMS IN ESCHERICHIA COLI ISOCITRAT... -

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Basic information

Entry
Database: PDB / ID: 1gro
TitleREGULATORY AND CATALYTIC MECHANISMS IN ESCHERICHIA COLI ISOCITRATE DEHYDROGENASE: MULTIPLE ROLES FOR N115
ComponentsISOCITRATE DEHYDROGENASE
KeywordsOXIDOREDUCTASE (NAD(A)-CHOH(D)) / OXIDOREDUCTASE / NADP / PHOSPHORYLATION / GLYOXYLATE BYPASS
Function / homology
Function and homology information


isocitrate dehydrogenase (NADP+) / isocitrate dehydrogenase (NADP+) activity / glyoxylate cycle / guanosine tetraphosphate binding / electron transport chain / tricarboxylic acid cycle / NAD binding / response to oxidative stress / magnesium ion binding / cytosol / cytoplasm
Similarity search - Function
Isocitrate dehydrogenase NADP-dependent, dimeric, prokaryotic / Isopropylmalate Dehydrogenase / Isopropylmalate Dehydrogenase / Isocitrate/isopropylmalate dehydrogenase, conserved site / Isocitrate and isopropylmalate dehydrogenases signature. / Isopropylmalate dehydrogenase-like domain / Isocitrate/isopropylmalate dehydrogenase / Isocitrate/isopropylmalate dehydrogenase / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
ISOCITRIC ACID / Isocitrate dehydrogenase [NADP]
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / Resolution: 2.5 Å
AuthorsGrobler, J.A. / Hurley, J.H.
Citation
Journal: Protein Sci. / Year: 1996
Title: Second-site suppression of regulatory phosphorylation in Escherichia coli isocitrate dehydrogenase.
Authors: Chen, R. / Grobler, J.A. / Hurley, J.H. / Dean, A.M.
#1: Journal: J.Biol.Chem. / Year: 1990
Title: Regulation of Isocitrate Dehydrogenase by Phosphorylation Involves No Long-Range Conformational Change in the Free Enzyme
Authors: Hurley, J.H. / Dean, A.M. / Thorsness, P.E. / Koshland Junior, D.E. / Stroud, R.M.
#2: Journal: Science / Year: 1990
Title: Regulation of an Enzyme by Phosphorylation at the Active Site
Authors: Hurley, J.H. / Dean, A.M. / Sohl, J.L. / Koshland Junior, D.E. / Stroud, R.M.
#3: Journal: Proc.Natl.Acad.Sci.USA / Year: 1989
Title: Structure of a Bacterial Enzyme Regulated by Phosphorylation, Isocitrate Dehydrogenase
Authors: Hurley, J.H. / Thorsness, P.E. / Ramalingam, V. / Helmers, N.H. / Koshland Junior, D.E. / Stroud, R.M.
History
DepositionOct 12, 1995Processing site: BNL
Revision 1.0Apr 3, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Nov 29, 2017Group: Derived calculations / Other
Category: pdbx_database_status / struct_conf / struct_conf_type
Item: _pdbx_database_status.process_site
Revision 1.4Nov 3, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / 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.ptnr1_symmetry / _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.ptnr3_symmetry / _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.ptnr1_symmetry / _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_conn.ptnr2_symmetry / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.5Feb 7, 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: ISOCITRATE DEHYDROGENASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)46,0533
Polymers45,8371
Non-polymers2162
Water0
1
A: ISOCITRATE DEHYDROGENASE
hetero molecules

A: ISOCITRATE DEHYDROGENASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)92,1066
Polymers91,6732
Non-polymers4334
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation7_555y,x,-z1
Buried area7700 Å2
ΔGint-57 kcal/mol
Surface area30500 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)105.100, 105.100, 150.600
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number96
Space group name H-MP43212
Atom site foot note1: CIS PROLINE - PRO 262

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Components

#1: Protein ISOCITRATE DEHYDROGENASE /


Mass: 45836.629 Da / Num. of mol.: 1 / Mutation: S113E, N115L
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli)
References: UniProt: P08200, isocitrate dehydrogenase (NADP+)
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-ICT / ISOCITRIC ACID / Isocitric acid


Mass: 192.124 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H8O7

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 4.53 Å3/Da / Density % sol: 72.87 %
Crystal grow
*PLUS
pH: 5.4 / Method: unknown
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
128 mg/mldephosphorylated IDH11
234 %satammonium sulfate11
3100 mM11NaCl
435 mM11Na2HPO4
59 mMcitric acid11
60.2 mMdithiothreitol11

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Data collection

Diffraction sourceWavelength: 1.54
DetectorType: RAXIS / Detector: IMAGE PLATE
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2.5→100 Å / Num. obs: 26055 / % possible obs: 86.7 % / Observed criterion σ(I): 0 / Rmerge(I) obs: 0.099
Reflection
*PLUS
Rmerge(I) obs: 0.099
Reflection shell
*PLUS
Highest resolution: 2.5 Å / Lowest resolution: 2.59 Å / % possible obs: 65.7 % / Num. unique obs: 1921 / Rmerge(I) obs: 0.265 / Mean I/σ(I) obs: 2

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
X-PLORphasing
RefinementResolution: 2.5→6 Å /
RfactorNum. reflection
Rwork0.195 -
obs0.195 24306
Refinement stepCycle: LAST / Resolution: 2.5→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3153 0 14 0 3167
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.013
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.8
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS

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