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- PDB-2z7k: tRNA-Guanine transglycosylase (TGT) in complex with 2-Amino-lin-B... -

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Basic information

Entry
Database: PDB / ID: 2z7k
TitletRNA-Guanine transglycosylase (TGT) in complex with 2-Amino-lin-Benzoguanine
ComponentsQueuine tRNA-ribosyltransferase
KeywordsTRANSFERASE / TIM Barrel / Glycosyltransferase / Metal-binding / Queuosine biosynthesis / tRNA processing
Function / homology
Function and homology information


tRNA-guanosine34 preQ1 transglycosylase / tRNA wobble guanine modification / tRNA-guanosine(34) queuine transglycosylase activity / : / tRNA queuosine(34) biosynthetic process / metal ion binding / cytosol
Similarity search - Function
Queuine tRNA-ribosyltransferase-like / : / tRNA-guanine transglycosylase / tRNA-guanine(15) transglycosylase-like / Queuine tRNA-ribosyltransferase-like / Queuine tRNA-ribosyltransferase / TIM Barrel / Alpha-Beta Barrel / Alpha Beta
Similarity search - Domain/homology
Chem-BGU / Queuine tRNA-ribosyltransferase
Similarity search - Component
Biological speciesZymomonas mobilis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 1.28 Å
AuthorsRitschel, T. / Heine, A. / Klebe, G.
CitationJournal: Chembiochem / Year: 2009
Title: Crystal structure analysis and in silico pKa calculations suggest strong pKa shifts of ligands as driving force for high-affinity binding to TGT
Authors: Ritschel, T. / Hoertner, S. / Heine, A. / Diederich, F. / Klebe, G.
History
DepositionAug 24, 2007Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 26, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.2Oct 11, 2017Group: Refinement description / Category: software
Revision 1.3Aug 26, 2020Group: Advisory / Data collection / Derived calculations
Category: pdbx_distant_solvent_atoms / pdbx_struct_assembly ...pdbx_distant_solvent_atoms / pdbx_struct_assembly / pdbx_struct_assembly_gen / pdbx_struct_assembly_prop / pdbx_struct_conn_angle / struct_biol / struct_conn / struct_site
Item: _pdbx_struct_assembly_prop.biol_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id ..._pdbx_struct_assembly_prop.biol_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_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_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_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Nov 1, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Queuine tRNA-ribosyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,2994
Polymers42,9261
Non-polymers3743
Water6,756375
1
A: Queuine tRNA-ribosyltransferase
hetero molecules

A: Queuine tRNA-ribosyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)86,5998
Polymers85,8512
Non-polymers7476
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,y,-z1
Buried area4610 Å2
ΔGint-13 kcal/mol
Surface area25250 Å2
MethodPISA
Unit cell
Length a, b, c (Å)90.500, 65.100, 70.600
Angle α, β, γ (deg.)90.00, 96.20, 90.00
Int Tables number5
Space group name H-MC121
Components on special symmetry positions
IDModelComponents
11A-1158-

HOH

21A-1176-

HOH

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Components

#1: Protein Queuine tRNA-ribosyltransferase / tRNA-guanine transglycosylase / Guanine insertion enzyme


Mass: 42925.703 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Zymomonas mobilis (bacteria) / Gene: TGT / Plasmid: pET9d / Production host: Escherichia coli (E. coli) / Strain (production host): Bl21(de3)
References: UniProt: P28720, tRNA-guanosine34 preQ1 transglycosylase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-BGU / 2,6-diamino-1,7-dihydro-8H-imidazo[4,5-g]quinazolin-8-one / 2-Amino-lin-Benzogunaine


Mass: 216.199 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H8N6O
#4: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


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


Mass: 18.015 Da / Num. of mol.: 375 / Source method: isolated from a natural source / Formula: H2O
Sequence details312TH RESIDUE IS LYS ACCORDING TO REUTER K.K.H. ET AL [J. BACTERIOL. 177:5284-5288(1995)] AND AHN J. ...312TH RESIDUE IS LYS ACCORDING TO REUTER K.K.H. ET AL [J. BACTERIOL. 177:5284-5288(1995)] AND AHN J.Y. ET AL[SUBMITTED (OCT-2000) TO THE EMBL/GENBANK/DDBJ DATABASES].

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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: 2.4 Å3/Da / Density % sol: 50 %
Crystal growTemperature: 288 K / Method: vapor diffusion, hanging drop / pH: 5.5
Details: 100mM TRIS HCl, 1mM DTT, 10% DMSO, 5% PEG 8000, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 288K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: BESSY / Beamline: 14.2 / Wavelength: 0.97803 Å
DetectorType: MAR CCD 165 mm / Detector: CCD / Date: Mar 18, 2007 / Details: Mirror and Double Crystal Monochromator
RadiationMonochromator: Double Crystal Monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97803 Å / Relative weight: 1
ReflectionResolution: 1.28→30 Å / Num. all: 102059 / Num. obs: 102059 / % possible obs: 97.4 % / Redundancy: 2.7 % / Rsym value: 0.038 / Net I/σ(I): 21.4
Reflection shellResolution: 1.28→1.3 Å / Redundancy: 2.5 % / Mean I/σ(I) obs: 3.8 / Num. unique all: 5228 / Rsym value: 0.249 / % possible all: 99.6

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Processing

Software
NameClassification
SHELXmodel building
SHELXL-97refinement
MAR345data collection
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB ENTRY 1P0D

1p0d


Resolution: 1.28→10 Å / Num. parameters: 13209 / Num. restraintsaints: 12081 / Isotropic thermal model: thourhout / Cross valid method: FREE R / σ(F): 0 / σ(I): 0 / Stereochemistry target values: ENGH & HUBER
Details: ANISOTROPIC SCALING APPLIED BY THE METHOD OF PARKIN, MOEZZI & HOPE, J.APPL.CRYST.28(1995)53-56
RfactorNum. reflection% reflectionSelection details
Rfree0.1858 5104 -RANDOM
Rwork0.1618 ---
all0.1622 101970 --
obs-96866 97.5 %-
Refine analyzeNum. disordered residues: 20 / Occupancy sum hydrogen: 2750 / Occupancy sum non hydrogen: 3201
Refinement stepCycle: LAST / Resolution: 1.28→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2803 0 23 375 3201
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.014
X-RAY DIFFRACTIONs_angle_d0.03
X-RAY DIFFRACTIONs_similar_dist0
X-RAY DIFFRACTIONs_from_restr_planes0.0284
X-RAY DIFFRACTIONs_zero_chiral_vol0.076
X-RAY DIFFRACTIONs_non_zero_chiral_vol0.082
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.058
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt0
X-RAY DIFFRACTIONs_similar_adp_cmpnt0.044
X-RAY DIFFRACTIONs_approx_iso_adps0

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