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- PDB-1rqg: Methionyl-tRNA synthetase from Pyrococcus abyssi -

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Basic information

Entry
Database: PDB / ID: 1rqg
TitleMethionyl-tRNA synthetase from Pyrococcus abyssi
ComponentsMethionyl-tRNA synthetase
KeywordsLIGASE / translation / dimerization
Function / homology
Function and homology information


methionine-tRNA ligase / methionine-tRNA ligase activity / methionyl-tRNA aminoacylation / aminoacyl-tRNA synthetase multienzyme complex / tRNA binding / ATP binding / metal ion binding / cytosol
Similarity search - Function
Methionine-tRNA ligase, type 1 / Methionyl-tRNA synthetase, Zn-domain / Methionyl-tRNA synthetase, beta subunit, C-terminal / Methionyl-trna Synthetase; domain 2 / Methionyl-trna Synthetase; domain 2 - #10 / Anticodon binding domain of methionyl tRNA ligase / Methionyl-tRNA synthetase / Methioninyl-tRNA synthetase core domain / Methionyl-tRNA synthetase, anticodon-binding domain / Isoleucyl-tRNA Synthetase; Domain 1 ...Methionine-tRNA ligase, type 1 / Methionyl-tRNA synthetase, Zn-domain / Methionyl-tRNA synthetase, beta subunit, C-terminal / Methionyl-trna Synthetase; domain 2 / Methionyl-trna Synthetase; domain 2 - #10 / Anticodon binding domain of methionyl tRNA ligase / Methionyl-tRNA synthetase / Methioninyl-tRNA synthetase core domain / Methionyl-tRNA synthetase, anticodon-binding domain / Isoleucyl-tRNA Synthetase; Domain 1 / Isoleucyl-tRNA Synthetase; Domain 1 / tRNA-binding domain / Putative tRNA binding domain / tRNA-binding domain profile. / Methionyl/Leucyl tRNA synthetase / tRNA synthetases class I (M) / Aminoacyl-tRNA synthetase, class Ia, anticodon-binding / Aminoacyl-tRNA synthetase, class I, conserved site / Aminoacyl-transfer RNA synthetases class-I signature. / HUPs / Rossmann-like alpha/beta/alpha sandwich fold / Beta Complex / Nucleic acid-binding, OB-fold / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Methionine--tRNA ligase
Similarity search - Component
Biological speciesPyrococcus abyssi (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.9 Å
AuthorsCrepin, T. / Schmitt, E. / Blanquet, S. / Mechulam, Y.
CitationJournal: Biochemistry / Year: 2004
Title: Three-dimensional structure of methionyl-tRNA synthetase from Pyrococcus abyssi.
Authors: Crepin, T. / Schmitt, E. / Blanquet, S. / Mechulam, Y.
History
DepositionDec 5, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 25, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 23, 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_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_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_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_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Remark 300BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAIN(S) ...BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAIN(S). The author states that the biological unit is a dimer, but that the identification of the second molecule is ambiguous.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Methionyl-tRNA synthetase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)84,5563
Polymers84,4261
Non-polymers1312
Water91951
1
A: Methionyl-tRNA synthetase
hetero molecules

A: Methionyl-tRNA synthetase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)169,1136
Polymers168,8512
Non-polymers2624
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation5_555-x+1/2,y,-z+3/41
Unit cell
Length a, b, c (Å)113.150, 113.150, 287.016
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number98
Space group name H-MI4122

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Components

#1: Protein Methionyl-tRNA synthetase / Methionine--tRNA ligase / MetRS


Mass: 84425.516 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pyrococcus abyssi (archaea) / Gene: METG, METS, PYRAB09870, PAB2364 / Plasmid: pet3ametpa-sd / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21-De3 / References: UniProt: Q9V011, methionine-tRNA ligase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 51 / 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: 2.72 Å3/Da / Density % sol: 54.77 %
Crystal growTemperature: 297 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 3.5% peg6000, 2% dioxane, 100mM MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-1 / Wavelength: 0.934 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Feb 13, 2002
RadiationMonochromator: crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.934 Å / Relative weight: 1
ReflectionResolution: 2.9→72.5 Å / Num. all: 20834 / Num. obs: 20834 / % possible obs: 99 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 5.4 % / Biso Wilson estimate: 73.8 Å2 / Rsym value: 0.087
Reflection shellResolution: 2.9→2.98 Å / Redundancy: 5.5 % / Num. unique all: 1524 / Rsym value: 0.358 / % possible all: 99.8

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Processing

Software
NameVersionClassification
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing
CNSrefinement
CCP4(SCALA)data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 1a8h

1a8h


Resolution: 2.9→72.5 Å / Isotropic thermal model: anisotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.2968 1170 -random
Rwork0.2436 ---
all0.2436 20041 --
obs0.2436 20041 94.7 %-
Displacement parametersBiso mean: 56 Å2
Baniso -1Baniso -2Baniso -3
1--7.793 Å20 Å20 Å2
2---7.793 Å20 Å2
3---15.586 Å2
Refinement stepCycle: LAST / Resolution: 2.9→72.5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4973 0 2 51 5026
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_angle_deg1.5
X-RAY DIFFRACTIONc_bond_d0.008
LS refinement shellResolution: 2.9→2.94 Å /
RfactorNum. reflection
Rfree0.418 43
Rwork0.347 -
obs-807

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