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- PDB-1o5t: Crystal structure of the aminoacylation catalytic fragment of hum... -

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Basic information

Entry
Database: PDB / ID: 1o5t
TitleCrystal structure of the aminoacylation catalytic fragment of human tryptophanyl-tRNA synthetase
ComponentsTryptophanyl-tRNA synthetase
KeywordsLIGASE / Rossmann fold / four helix bundle
Function / homology
Function and homology information


tryptophan-tRNA ligase / tryptophan-tRNA ligase activity / tryptophanyl-tRNA aminoacylation / kinase inhibitor activity / Cytosolic tRNA aminoacylation / regulation of angiogenesis / positive regulation of protein-containing complex assembly / negative regulation of protein kinase activity / angiogenesis / translation ...tryptophan-tRNA ligase / tryptophan-tRNA ligase activity / tryptophanyl-tRNA aminoacylation / kinase inhibitor activity / Cytosolic tRNA aminoacylation / regulation of angiogenesis / positive regulation of protein-containing complex assembly / negative regulation of protein kinase activity / angiogenesis / translation / protein domain specific binding / negative regulation of cell population proliferation / positive regulation of gene expression / protein kinase binding / protein homodimerization activity / protein-containing complex / extracellular exosome / ATP binding / nucleus / cytosol / cytoplasm
Similarity search - Function
WHEP-TRS domain / WHEP-TRS domain / WHEP-TRS domain signature. / WHEP-TRS domain profile. / WHEP-TRS / Tryptophan-tRNA ligase / Tyrosyl-Transfer RNA Synthetase / Tyrosyl-Transfer RNA Synthetase / Aminoacyl-tRNA synthetase, class Ic / tRNA synthetases class I (W and Y) ...WHEP-TRS domain / WHEP-TRS domain / WHEP-TRS domain signature. / WHEP-TRS domain profile. / WHEP-TRS / Tryptophan-tRNA ligase / Tyrosyl-Transfer RNA Synthetase / Tyrosyl-Transfer RNA Synthetase / Aminoacyl-tRNA synthetase, class Ic / tRNA synthetases class I (W and Y) / Aminoacyl-tRNA synthetase, class I, conserved site / Aminoacyl-transfer RNA synthetases class-I signature. / HUPs / Rossmann-like alpha/beta/alpha sandwich fold / S15/NS1, RNA-binding / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Tryptophan--tRNA ligase, cytoplasmic
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 2.5 Å
AuthorsYu, Y. / Liu, Y. / Shen, N. / Xu, X. / Jia, J. / Jin, Y. / Arnold, E. / Ding, J.
CitationJournal: J.BIOL.CHEM. / Year: 2004
Title: Crystal Structure of Human Tryptophanyl-tRNA Synthetase Catalytic Fragment
Authors: Yu, Y. / Liu, Y. / Shen, N. / Xu, X. / Xu, F. / Jia, J. / Jin, Y. / Arnold, E. / Ding, J.
History
DepositionOct 5, 2003Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 6, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Dec 27, 2023Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
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: Tryptophanyl-tRNA synthetase


Theoretical massNumber of molelcules
Total (without water)43,3861
Polymers43,3861
Non-polymers00
Water1,928107
1
A: Tryptophanyl-tRNA synthetase

A: Tryptophanyl-tRNA synthetase


Theoretical massNumber of molelcules
Total (without water)86,7732
Polymers86,7732
Non-polymers00
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation12_543x,x-y-1,-z-7/61
Buried area3030 Å2
ΔGint-22 kcal/mol
Surface area31460 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)82.240, 82.240, 263.560
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number179
Space group name H-MP6522
DetailsThe enzyme forms a homodimer in both solution and crystal structure. The two subunits of the dimer are related by the crystallographic 2-fold axis. Therefore, there is one molecule per asymmetric unit.

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Components

#1: Protein Tryptophanyl-tRNA synthetase / Tryptophan--tRNA ligase / TrpRS / IFP53 / hWRS


Mass: 43386.477 Da / Num. of mol.: 1 / Fragment: aminoacylation catalytic fragment
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Plasmid: pET24a(+) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) Codon-Plus / References: UniProt: P23381, tryptophan-tRNA ligase
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 107 / 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: 2.91 Å3/Da / Density % sol: 57.33 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 8.2
Details: 16% PEG1500, 4% PEG3350, 0.2M tri-sodium citrate dihydrate, pH 8.2, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: CHESS / Beamline: F1 / Wavelength: 0.916, 0.9500, 0.9790, 0.9787
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Feb 10, 2003 / Details: mirror
RadiationMonochromator: GRAPHITE / Protocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
IDWavelength (Å)Relative weight
10.9161
20.951
30.9791
40.97871
ReflectionResolution: 2.5→30 Å / Num. all: 19164 / Num. obs: 18911 / % possible obs: 98.7 % / Observed criterion σ(I): -3 / Redundancy: 8.5 % / Biso Wilson estimate: 49.7 Å2 / Rmerge(I) obs: 0.09
Reflection shellResolution: 2.5→2.54 Å / Redundancy: 5 % / Rmerge(I) obs: 0.415 / Mean I/σ(I) obs: 2 / Num. unique all: 881 / % possible all: 96.3

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing
RefinementMethod to determine structure: MAD / Resolution: 2.5→29.51 Å / Rfactor Rfree error: 0.01 / Data cutoff high absF: 2193404.92 / 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
Rfree0.296 960 5.1 %RANDOM
Rwork0.245 ---
obs0.245 18911 99 %-
all-19164 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 53.1418 Å2 / ksol: 0.321367 e/Å3
Displacement parametersBiso mean: 65 Å2
Baniso -1Baniso -2Baniso -3
1-7.1 Å29.78 Å20 Å2
2--7.1 Å20 Å2
3----14.21 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.48 Å0.39 Å
Luzzati d res low-5 Å
Luzzati sigma a0.46 Å0.45 Å
Refinement stepCycle: LAST / Resolution: 2.5→29.51 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3056 0 0 107 3163
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.007
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_deg1.3
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d21.1
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.83
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 6

Resolution (Å)Rfactor RfreeNum. reflection Rfree% reflection Rfree (%)Rfactor RworkNum. reflection RworkNum. reflection obs
2.5-2.660.40431534.60.34917402989
2.66-2.860.36891480.32383089
2.86-3.150.33981520.30123134
3.15-3.610.30951540.28633151
3.61-4.540.30111740.22753213
4.54-29.510.24731790.19313335
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMWATER_REP.TOP

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