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- PDB-1y5x: tRNA-guanine Transglycosylase (TGT) in complex with 6-Amino-4-[2-... -

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Basic information

Entry
Database: PDB / ID: 1y5x
TitletRNA-guanine Transglycosylase (TGT) in complex with 6-Amino-4-[2-(4-methoxyphenyl)ethyl]-1,7-dihydro-8H-imidazo[4,5-g]quinazolin-8-one
ComponentsQueuine tRNA-ribosyltransferase
KeywordsTRANSFERASE
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-E89 / Queuine tRNA-ribosyltransferase
Similarity search - Component
Biological speciesZymomonas mobilis (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.1 Å
AuthorsStengl, B. / Meyer, E.A. / Heine, A. / Brenk, R. / Diederich, F. / Klebe, G.
Citation
Journal: J.Mol.Biol. / Year: 2007
Title: Crystal structures of tRNA-guanine transglycosylase (TGT) in complex with novel and potent inhibitors unravel pronounced induced-fit adaptations and suggest dimer formation upon substrate binding
Authors: Stengl, B. / Meyer, E.A. / Heine, A. / Brenk, R. / Diederich, F. / Klebe, G.
#1: Journal: To be Published
Title: Synthesis, Biological Evaluation and Crystallographic Studies of Extended Guanine-based (lin-Benzoguanine) Inhibitors for tRNA-Guanine Transglycosylase (TGT)
Authors: Meyer, E.A. / Donati, N. / Guillot, M. / Schweizer, B. / Diederich, F. / Stengl, B. / Heine, A. / Brenk, R. / Klebe, G.
History
DepositionDec 3, 2004Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Dec 13, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Aug 26, 2020Group: Derived calculations
Category: pdbx_struct_assembly / pdbx_struct_assembly_gen ...pdbx_struct_assembly / pdbx_struct_assembly_gen / pdbx_struct_assembly_prop / struct_conn / struct_site
Item: _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_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_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
Revision 1.4Oct 25, 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

Downloads & links

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Assembly

Deposited unit
A: Queuine tRNA-ribosyltransferase
D: Queuine tRNA-ribosyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)86,3916
Polymers85,5892
Non-polymers8024
Water4,378243
1
A: Queuine tRNA-ribosyltransferase
hetero molecules

A: Queuine tRNA-ribosyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)86,3916
Polymers85,5892
Non-polymers8024
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,y,-z1
Buried area4720 Å2
ΔGint-18 kcal/mol
Surface area25630 Å2
MethodPISA
2
D: Queuine tRNA-ribosyltransferase
hetero molecules

D: Queuine tRNA-ribosyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)86,3916
Polymers85,5892
Non-polymers8024
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_556-x,y,-z+11
Buried area3870 Å2
ΔGint-23 kcal/mol
Surface area26290 Å2
MethodPISA
Unit cell
Length a, b, c (Å)71.11, 64.21, 88.08
Angle α, β, γ (deg.)90.00, 95.11, 90.00
Int Tables number3
Space group name H-MP121

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Components

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


Mass: 42794.508 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Zymomonas mobilis (bacteria) / Gene: tgt / Plasmid: pET9d / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / 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.: 2 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-E89 / 6-AMINO-4-[2-(4-METHOXYPHENYL)ETHYL]-1,7-DIHYDRO-8H-IMIDAZO[4,5-G]QUINAZOLIN-8-ONE


Mass: 335.360 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C18H17N5O2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 243 / 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: 2.3 Å3/Da / Density % sol: 47 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop / pH: 5.5
Details: PEG8000, MES, DMSO, DTT, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Apr 7, 2003
RadiationMonochromator: OSMIC MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.1→20 Å / Num. all: 44873 / Num. obs: 44873 / % possible obs: 96.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 2.4 % / Biso Wilson estimate: 20.9 Å2 / Rsym value: 0.059 / Net I/σ(I): 13.4
Reflection shellResolution: 2.1→2.14 Å / Redundancy: 2.1 % / Mean I/σ(I) obs: 2.4 / Num. unique all: 2269 / Rsym value: 0.357 / % possible all: 98.5

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Processing

Software
NameVersionClassification
CNS1refinement
CrystalClear(MSC/RIGAKU)data reduction
HKL-2000data scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1P0D

1p0d


Resolution: 2.1→19.84 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 530934.8 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.255 2118 5 %RANDOM
Rwork0.221 ---
obs0.221 42047 90.7 %-
all-42047 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 53.2191 Å2 / ksol: 0.369198 e/Å3
Displacement parametersBiso mean: 32.8 Å2
Baniso -1Baniso -2Baniso -3
1--5.08 Å20 Å20.06 Å2
2--1.44 Å20 Å2
3---3.64 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.31 Å0.26 Å
Luzzati d res low-5 Å
Luzzati sigma a0.3 Å0.23 Å
Refinement stepCycle: LAST / Resolution: 2.1→19.84 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5568 0 52 243 5863
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d21.6
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.76
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.371.5
X-RAY DIFFRACTIONc_mcangle_it2.162
X-RAY DIFFRACTIONc_scbond_it2.062
X-RAY DIFFRACTIONc_scangle_it2.852.5
LS refinement shellResolution: 2.1→2.17 Å / Rfactor Rfree error: 0.023 / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.33 199 5 %
Rwork0.281 3754 -
obs--86.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2ION.PARAM
X-RAY DIFFRACTION3E89.PARAM
X-RAY DIFFRACTION4WATER_REP.PARAM

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