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Basic information

Entry
Database: PDB / ID: 4mgh
TitleImportance of Hydrophobic Cavities in Allosteric Regulation of Formylglycinamide Synthetase: Insight from Xenon Trapping and Statistical Coupling Analysis
ComponentsPhosphoribosylformylglycinamidine synthase
KeywordsLIGASE / Amidotransferasae / Amidotransferase
Function / homology
Function and homology information


phosphoribosylformylglycinamidine synthase / phosphoribosylformylglycinamidine synthase activity / purine nucleotide biosynthetic process / 'de novo' IMP biosynthetic process / glutamine metabolic process / ATP binding / metal ion binding / cytoplasm
Similarity search - Function
Phosphoribosylformylglycinamidine synthase, linker domain / Phosphoribosylformylglycinamidine synthase PurL / Phosphoribosylformylglycinamidine synthase, N-terminal / Formylglycinamide ribonucleotide amidotransferase N-terminal / CobB/CobQ-like glutamine amidotransferase domain / CobB/CobQ-like glutamine amidotransferase domain / Phosphoribosylformylglycinamidine synthase, linker domain / Formylglycinamide ribonucleotide amidotransferase linker domain / Phosphoribosylformylglycinamidine synthase subunit PurS-like superfamily / PurM-like, C-terminal domain ...Phosphoribosylformylglycinamidine synthase, linker domain / Phosphoribosylformylglycinamidine synthase PurL / Phosphoribosylformylglycinamidine synthase, N-terminal / Formylglycinamide ribonucleotide amidotransferase N-terminal / CobB/CobQ-like glutamine amidotransferase domain / CobB/CobQ-like glutamine amidotransferase domain / Phosphoribosylformylglycinamidine synthase, linker domain / Formylglycinamide ribonucleotide amidotransferase linker domain / Phosphoribosylformylglycinamidine synthase subunit PurS-like superfamily / PurM-like, C-terminal domain / PurM-like, C-terminal domain superfamily / PurM-like, N-terminal domain superfamily / AIR synthase related protein, C-terminal domain / Glutamine amidotransferase type 1 domain profile. / Class I glutamine amidotransferase (GATase) domain / Class I glutamine amidotransferase-like / Helicase, Ruva Protein; domain 3 / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
ACETATE ION / ADENOSINE-5'-DIPHOSPHATE / : / XENON / Phosphoribosylformylglycinamidine synthase
Similarity search - Component
Biological speciesSalmonella typhimurium (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.65 Å
AuthorsTanwar, A.S. / Goyal, V.D. / Choudhary, D. / Panjikar, S. / Anand, R.
CitationJournal: Plos One / Year: 2013
Title: Importance of hydrophobic cavities in allosteric regulation of formylglycinamide synthetase: insight from xenon trapping and statistical coupling analysis
Authors: Tanwar, A.S. / Goyal, V.D. / Choudhary, D. / Panjikar, S. / Anand, R.
History
DepositionAug 28, 2013Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Dec 11, 2013Provider: repository / Type: Initial release
Revision 1.1Nov 8, 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 / diffrn_source / 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 / _diffrn_source.pdbx_synchrotron_site / _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_seq_id / _pdbx_struct_conn_angle.ptnr2_label_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.pdbx_leaving_atom_flag / _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: Phosphoribosylformylglycinamidine synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)145,15628
Polymers142,5661
Non-polymers2,59027
Water9,332518
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)146.448, 146.448, 141.687
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number170
Space group name H-MP65

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Phosphoribosylformylglycinamidine synthase / FGAM synthase / FGAMS / Formylglycinamide ribotide amidotransferase / FGARAT / Formylglycinamide ...FGAM synthase / FGAMS / Formylglycinamide ribotide amidotransferase / FGARAT / Formylglycinamide ribotide synthetase


Mass: 142566.406 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Salmonella typhimurium (bacteria) / Strain: LT2 / SGSC1412 / ATCC 700720 / Gene: purL, STM2565 / Plasmid: pET28a / Production host: Escherichia coli (E. coli)
References: UniProt: P74881, phosphoribosylformylglycinamidine synthase

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Non-polymers , 7 types, 545 molecules

#2: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#3: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Mg
#4: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mn
#5: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 13 / Source method: obtained synthetically / Formula: SO4
#6: Chemical
ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C2H3O2
#7: Chemical
ChemComp-XE / XENON


Mass: 131.293 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Xe
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 518 / 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: 3.08 Å3/Da / Density % sol: 60.02 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 2M Ammonium Sulphate, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: X12 / Wavelength: 0.81738 Å
DetectorType: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: May 26, 2011
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.81738 Å / Relative weight: 1
ReflectionResolution: 2.64→19.99 Å / Num. all: 50158 / Num. obs: 50158 / % possible obs: 99.3 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 25.067 Å2 / Rmerge(I) obs: 0.136 / Net I/σ(I): 27.3
Reflection shell

Diffraction-ID: 1

Resolution (Å)Highest resolution (Å)Rmerge F obsRmerge(I) obsMean I/σ(I) obsNum. measured obsNum. possibleNum. unique obsRrim(I) all% possible all
2.64-2.80.9830.4659.07164144799277890.47697.5
2.8-2.990.9910.3413.01163945755275520.348100
2.99-3.220.9950.22519.59153232703070300.23100
3.22-3.520.9980.14927.11142298647364730.152100
3.52-3.920.9990.10235.22130017589558950.105100
3.92-4.50.9990.07543.96114851520452040.077100
4.5-5.440.9990.07443.3698742448144810.076100
5.44-7.430.9990.0934.8477561353035300.093100
7.4310.04760.646968233122040.04894.6

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Processing

Software
NameVersionClassificationNB
XSCALEdata scaling
REFMAC5.7.0032refinement
PDB_EXTRACT3.11data extraction
MAR345dtbdata collection
XDSdata reduction
REFMACphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1T3T

1t3t


Resolution: 2.65→19.99 Å / Cor.coef. Fo:Fc: 0.955 / Cor.coef. Fo:Fc free: 0.918 / Occupancy max: 1 / Occupancy min: 0.46 / SU B: 7.708 / SU ML: 0.163 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.512 / ESU R Free: 0.252 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES: REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2027 1176 2.4 %RANDOM
Rwork0.1526 ---
obs0.1538 49942 99.74 %-
all-49942 --
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 86.53 Å2 / Biso mean: 20.8347 Å2 / Biso min: 2 Å2
Baniso -1Baniso -2Baniso -3
1--0 Å2-0 Å2-0 Å2
2---0 Å2-0 Å2
3---0 Å2
Refinement stepCycle: LAST / Resolution: 2.65→19.99 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms9879 0 117 518 10514
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0160.01910191
X-RAY DIFFRACTIONr_bond_other_d0.0010.029570
X-RAY DIFFRACTIONr_angle_refined_deg1.7841.96313841
X-RAY DIFFRACTIONr_angle_other_deg0.873321957
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.94351282
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.00824.076476
X-RAY DIFFRACTIONr_dihedral_angle_3_deg17.279151632
X-RAY DIFFRACTIONr_dihedral_angle_4_deg18.6041574
X-RAY DIFFRACTIONr_chiral_restr0.10.21524
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.02111717
X-RAY DIFFRACTIONr_gen_planes_other0.0010.022352
X-RAY DIFFRACTIONr_mcbond_it1.4281.9745140
X-RAY DIFFRACTIONr_mcbond_other1.421.975133
X-RAY DIFFRACTIONr_mcangle_it2.3192.9526414
LS refinement shellHighest resolution: 2.65 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.2026 --
Rwork0.1526 3557 -
obs--99.74 %

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