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- PDB-1pfu: METHIONYL-TRNA SYNTHETASE FROM ESCHERICHIA COLI COMPLEXED WITH ME... -

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Basic information

Entry
Database: PDB / ID: 1pfu
TitleMETHIONYL-TRNA SYNTHETASE FROM ESCHERICHIA COLI COMPLEXED WITH METHIONINE PHOSPHINATE
ComponentsMethionyl-tRNA synthetase
KeywordsLIGASE / Rossmann fold
Function / homology
Function and homology information


methionine-tRNA ligase / methionine-tRNA ligase activity / methionyl-tRNA aminoacylation / tRNA binding / protein homodimerization activity / zinc ion binding / ATP binding / membrane / cytosol
Similarity search - Function
Methionyl-tRNA synthetase, Zn-domain / Methionine-tRNA ligase, type 1 / Methionyl-tRNA synthetase, Zn-domain / Methionyl-tRNA synthetase, beta subunit, C-terminal / 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 ...Methionyl-tRNA synthetase, Zn-domain / Methionine-tRNA ligase, type 1 / Methionyl-tRNA synthetase, Zn-domain / Methionyl-tRNA synthetase, beta subunit, C-terminal / 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 / Rubrerythrin, domain 2 / Aminoacyl-tRNA synthetase, class I, conserved site / Aminoacyl-transfer RNA synthetases class-I signature. / HUPs / Single Sheet / Rossmann-like alpha/beta/alpha sandwich fold / Nucleic acid-binding, OB-fold / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
(1-AMINO-3-METHYLSULFANYL-PROPYL)-PHOSPHINIC ACID / Methionine--tRNA ligase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.91 Å
AuthorsCrepin, T. / Schmitt, E. / Mechulam, Y. / Sampson, P.B. / Vaughan, M.D. / Honek, J.F. / Blanquet, S.
CitationJournal: J.Mol.Biol. / Year: 2003
Title: Use of analogues of methionine and methionyl adenylate to sample conformational changes during catalysis in Escherichia coli methionyl-tRNA synthetase.
Authors: Crepin, T. / Schmitt, E. / Mechulam, Y. / Sampson, P.B. / Vaughan, M.D. / Honek, J.F. / Blanquet, S.
History
DepositionMay 27, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 17, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 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_seq_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Methionyl-tRNA synthetase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)63,1933
Polymers62,9581
Non-polymers2352
Water7,981443
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)79.008, 45.500, 86.322
Angle α, β, γ (deg.)90.00, 107.34, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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


Mass: 62958.102 Da / Num. of mol.: 1 / Fragment: RESIDUES 1-551
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: METG / Plasmid: pBluescript / Production host: Escherichia coli (E. coli) / Strain (production host): JM101Tr / References: UniProt: P00959, methionine-tRNA ligase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-MPJ / (1-AMINO-3-METHYLSULFANYL-PROPYL)-PHOSPHINIC ACID / METHIONINE PHOSPHINATE


Type: L-peptide linking / Mass: 169.182 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H12NO2PS
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 443 / 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: 2.35 Å3/Da / Density % sol: 47.69 %
Crystal growTemperature: 280 K / Method: vapor diffusion / pH: 7
Details: AMMONIUM CITRATE, POTASSIUM PHOSPHATE, pH 7, VAPOR DIFFUSION, temperature 280K
Crystal grow
*PLUS
Method: unknown / Details: Mechulam, Y., (1999) J. Mol. Biol., 294, 1287.

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: LURE / Beamline: DW32 / Wavelength: 0.9674 Å
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Feb 26, 2002
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9674 Å / Relative weight: 1
ReflectionResolution: 1.91→42 Å / Num. all: 44768 / Num. obs: 44768 / % possible obs: 99 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 2.5 % / Biso Wilson estimate: 17.3 Å2 / Rsym value: 0.077 / Net I/σ(I): 6.3
Reflection shellResolution: 1.91→1.96 Å / Redundancy: 2.5 % / Mean I/σ(I) obs: 2.5 / Num. unique all: 3328 / Rsym value: 0.26 / % possible all: 98.4
Reflection
*PLUS
Num. obs: 45381 / Rmerge(I) obs: 0.077
Reflection shell
*PLUS
% possible obs: 98.4 % / Rmerge(I) obs: 0.26

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Processing

Software
NameVersionClassification
MOSFLMdata reduction
SCALAdata scaling
CNSrefinement
CCP4(SCALA)data scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1QQT

1qqt


Resolution: 1.91→42 Å / Isotropic thermal model: anisotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.224 2247 -random
Rwork0.195 ---
all0.195 45922 --
obs0.195 44768 97.5 %-
Displacement parameters
Baniso -1Baniso -2Baniso -3
1-1.121 Å20 Å2-0.968 Å2
2---0.472 Å20 Å2
3----0.649 Å2
Refinement stepCycle: LAST / Resolution: 1.91→42 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4394 0 10 443 4847
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_bond_d0.0063
LS refinement shellResolution: 1.91→1.92 Å /
RfactorNum. reflection
Rfree0.306 40
Rwork0.24 -
obs-991
Refinement
*PLUS
% reflection Rfree: 5 %
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: c_angle_deg / Dev ideal: 1.22

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