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- PDB-1cg4: STRUCTURE OF THE MUTANT (R303L) OF ADENYLOSUCCINATE SYNTHETASE FR... -

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Basic information

Entry
Database: PDB / ID: 1cg4
TitleSTRUCTURE OF THE MUTANT (R303L) OF ADENYLOSUCCINATE SYNTHETASE FROM E. COLI COMPLEXED WITH, GDP, 6-PHOSPHORYL-IMP, AND MG2+
ComponentsPROTEIN (ADENYLOSUCCINATE SYNTHETASE)
KeywordsLIGASE / GTP-HYDROLYSING ENZYMES / PURINE 2 NUCLEOTIDE BIOSYNTHESIS / 6-PHOSPORYL-IMP
Function / homology
Function and homology information


adenylosuccinate synthase / adenylosuccinate synthase activity / adenosine biosynthetic process / IMP metabolic process / 'de novo' AMP biosynthetic process / nucleobase-containing small molecule interconversion / purine nucleotide biosynthetic process / guanosine tetraphosphate binding / DNA damage response / GTP binding ...adenylosuccinate synthase / adenylosuccinate synthase activity / adenosine biosynthetic process / IMP metabolic process / 'de novo' AMP biosynthetic process / nucleobase-containing small molecule interconversion / purine nucleotide biosynthetic process / guanosine tetraphosphate binding / DNA damage response / GTP binding / magnesium ion binding / membrane / cytoplasm / cytosol
Similarity search - Function
Adenylosuccinate Synthetase; Chain A, domain 1 / Adenylosuccinate Synthetase, subunit A, domain 1 / Adenylosuccinate Synthetase; Chain A, domain 3 / Adenylosuccinate Synthetase, subunit A, domain 3 / Adenylosuccinate Synthetase, subunit A; domain 2 / Adenylosuccinate Synthetase, subunit A, domain 2 / Adenylosuccinate synthase, active site / Adenylosuccinate synthetase active site. / Adenylosuccinate synthase, GTP-binding site / Adenylosuccinate synthetase, domain 2 ...Adenylosuccinate Synthetase; Chain A, domain 1 / Adenylosuccinate Synthetase, subunit A, domain 1 / Adenylosuccinate Synthetase; Chain A, domain 3 / Adenylosuccinate Synthetase, subunit A, domain 3 / Adenylosuccinate Synthetase, subunit A; domain 2 / Adenylosuccinate Synthetase, subunit A, domain 2 / Adenylosuccinate synthase, active site / Adenylosuccinate synthetase active site. / Adenylosuccinate synthase, GTP-binding site / Adenylosuccinate synthetase, domain 2 / Adenylosuccinate synthetase, domain 3 / Adenylosuccinate synthetase GTP-binding site. / Adenylosuccinate synthetase / Adenylosuccinate synthetase, domain 1 / Adenylosuccinate synthetase / Adenylosuccinate synthetase / Alpha-Beta Complex / P-loop containing nucleoside triphosphate hydrolase / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
GUANOSINE-5'-DIPHOSPHATE / 6-O-PHOSPHORYL INOSINE MONOPHOSPHATE / Adenylosuccinate synthetase
Similarity search - Component
Biological speciesEscherichia coli K12 (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.5 Å
AuthorsChoe, J.Y. / Poland, B.W. / Fromm, H. / Honzatko, R.
CitationJournal: Biochemistry / Year: 1999
Title: Mechanistic implications from crystalline complexes of wild-type and mutant adenylosuccinate synthetases from Escherichia coli.
Authors: Choe, J.Y. / Poland, B.W. / Fromm, H.J. / Honzatko, R.B.
History
DepositionMar 26, 1999Deposition site: BNL / Processing site: RCSB
Revision 1.0Jun 17, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 26, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Oct 4, 2017Group: Refinement description / Category: software / Item: _software.name
Revision 1.4Mar 14, 2018Group: Database references / Category: struct_ref_seq_dif / Item: _struct_ref_seq_dif.details
Revision 1.5Aug 9, 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_conn.ptnr2_label_seq_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

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Assembly

Deposited unit
A: PROTEIN (ADENYLOSUCCINATE SYNTHETASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)48,1214
Polymers47,2261
Non-polymers8963
Water2,990166
1
A: PROTEIN (ADENYLOSUCCINATE SYNTHETASE)
hetero molecules

A: PROTEIN (ADENYLOSUCCINATE SYNTHETASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)96,2438
Polymers94,4512
Non-polymers1,7916
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_555-x,-x+y,-z+2/31
Buried area9190 Å2
ΔGint-54 kcal/mol
Surface area27600 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)80.210, 80.210, 157.870
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number154
Space group name H-MP3221

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Components

#1: Protein PROTEIN (ADENYLOSUCCINATE SYNTHETASE) / AMPSASE


Mass: 47225.559 Da / Num. of mol.: 1 / Mutation: R303L
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli K12 (bacteria) / Species: Escherichia coli / Strain: K-12 / Plasmid: pTrc99A / Production host: Escherichia coli (E. coli) / Strain (production host): PUR A- STRAIN H1238 / References: UniProt: P0A7D4, adenylosuccinate synthase
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-IMO / 6-O-PHOSPHORYL INOSINE MONOPHOSPHATE


Mass: 428.186 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H14N4O11P2
#4: Chemical ChemComp-GDP / GUANOSINE-5'-DIPHOSPHATE


Type: RNA linking / Mass: 443.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O11P2 / Comment: GDP, energy-carrying molecule*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 166 / 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: 3.1 Å3/Da / Density % sol: 60.36 %
Crystal growpH: 6.5 / Details: 13% PEG 8000, 100MM NA-CACODYLATE(PH 6.5)
Crystal grow
*PLUS
pH: 7 / Method: vapor diffusion, hanging drop
Details: drop consists of equal volume of enzyme and reservoir solutions
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
150 mMimidazole1drop
275 mMsuccinate1drop
34 mMGTP1drop
44 mMIMP1drop
55 mMhadacidin1drop
610 mg/mlprotein1drop
713 %(w/w)PEG80001reservoir
8100 mMcacodylic acid/cacodylate1reservoir
9200 mMmagnesium chloride1reservoir

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Data collection

DiffractionMean temperature: 120 K
Diffraction sourceSource: ROTATING ANODE / Type: SIEMENS / Wavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: May 1, 1997
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.5→50 Å / Num. obs: 26203 / % possible obs: 99 % / Redundancy: 2.5 % / Rmerge(I) obs: 0.107
Reflection shellResolution: 2.5→2.7 Å / % possible all: 99
Reflection
*PLUS
Num. measured all: 185165
Reflection shell
*PLUS
% possible obs: 99 %

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Processing

Software
NameVersionClassification
X-PLORmodel building
X-PLOR3.851refinement
X-GENdata reduction
X-GENdata scaling
X-PLORphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1GIM

1gim


Resolution: 2.5→5 Å / Rfactor Rfree error: 0.0056 / Data cutoff low absF: 0 / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.252 1753 10 %RANDOM
Rwork0.179 ---
obs-17525 66.9 %-
Displacement parametersBiso mean: 35 Å2
Refinement stepCycle: LAST / Resolution: 2.5→5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3318 0 56 166 3540
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.01
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_deg1.76
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
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARHCSDX.PROTOPHCSDX.PRO
X-RAY DIFFRACTION2PARNAH1E.DNATOPH19.PEP
X-RAY DIFFRACTION3PARAM19.SOL
Software
*PLUS
Name: X-PLOR / Version: 3.851 / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.179
Solvent computation
*PLUS
Displacement parameters
*PLUS

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