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- PDB-6s30: Crystal Structure of Seryl-tRNA Synthetase from Klebsiella pneumoniae -

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Basic information

Entry
Database: PDB / ID: 6s30
TitleCrystal Structure of Seryl-tRNA Synthetase from Klebsiella pneumoniae
ComponentsSerine--tRNA ligase
KeywordsLIGASE / Coil-coil / Beta barrel / tRNA synthetase / Inhibitor / Complex
Function / homology
Function and homology information


L-selenocysteine biosynthetic process / serine-tRNA ligase / serine-tRNA ligase activity / seryl-tRNA aminoacylation / ATP binding / metal ion binding / cytoplasm
Similarity search - Function
Serine-tRNA synthetase, tRNA binding domain / Serine-tRNA synthetase, type1, N-terminal / Seryl-tRNA synthetase N-terminal domain / Serine-tRNA ligase, type1 / Serine-tRNA ligase catalytic core domain / Serine-tRNA synthetase, type1, N-terminal domain superfamily / Class I and II aminoacyl-tRNA synthetase, tRNA-binding arm / Aminoacyl-tRNA synthetase, class II (G/ P/ S/T) / tRNA synthetase class II core domain (G, H, P, S and T) / Bira Bifunctional Protein; Domain 2 ...Serine-tRNA synthetase, tRNA binding domain / Serine-tRNA synthetase, type1, N-terminal / Seryl-tRNA synthetase N-terminal domain / Serine-tRNA ligase, type1 / Serine-tRNA ligase catalytic core domain / Serine-tRNA synthetase, type1, N-terminal domain superfamily / Class I and II aminoacyl-tRNA synthetase, tRNA-binding arm / Aminoacyl-tRNA synthetase, class II (G/ P/ S/T) / tRNA synthetase class II core domain (G, H, P, S and T) / Bira Bifunctional Protein; Domain 2 / BirA Bifunctional Protein; domain 2 / Aminoacyl-tRNA synthetase, class II / Aminoacyl-transfer RNA synthetases class-II family profile. / Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL) / Helix Hairpins / 2-Layer Sandwich / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Serine--tRNA ligase / Serine--tRNA ligase
Similarity search - Component
Biological speciesKlebsiella pneumoniae (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.41 Å
AuthorsPang, L. / De Graef, S. / Weeks, S.D. / Strelkov, S.V.
Funding support Belgium, 3items
OrganizationGrant numberCountry
Research Foundation - FlandersG077814N Belgium
Research Foundation - FlandersG0A4616N Belgium
Research Foundation - Flanders1S53516N Belgium
CitationJournal: Acs Chem.Biol. / Year: 2020
Title: Structural Insights into the Binding of Natural Pyrimidine-Based Inhibitors of Class II Aminoacyl-tRNA Synthetases.
Authors: Pang, L. / Nautiyal, M. / De Graef, S. / Gadakh, B. / Zorzini, V. / Economou, A. / Strelkov, S.V. / Van Aerschot, A. / Weeks, S.D.
History
DepositionJun 23, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 8, 2020Provider: repository / Type: Initial release
Revision 1.1Jan 15, 2020Group: Database references / Category: citation / Item: _citation.title / _citation.year
Revision 1.2Mar 4, 2020Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Jan 24, 2024Group: 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
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_symmetry / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_symmetry

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Serine--tRNA ligase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)48,9146
Polymers48,6691
Non-polymers2445
Water1,42379
1
A: Serine--tRNA ligase
hetero molecules

A: Serine--tRNA ligase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)97,82712
Polymers97,3382
Non-polymers48910
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation7_555y,x,-z1
Buried area6660 Å2
ΔGint-46 kcal/mol
Surface area35710 Å2
MethodPISA
Unit cell
Length a, b, c (Å)83.342, 83.342, 229.999
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number96
Space group name H-MP43212

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Components

#1: Protein Serine--tRNA ligase / Seryl-tRNA synthetase / SerRS / Seryl-tRNA(Ser/Sec) synthetase


Mass: 48669.180 Da / Num. of mol.: 1 / Fragment: Seryl-tRNA synthetase
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Klebsiella pneumoniae (bacteria)
Gene: serS, AGG09_05015, B1727_25560, B4U21_07300, B4U22_08075, BB785_18280, BL124_0015080, BN49_2024, C3483_17160, C3F39_05595, C9J88_18700, CPT10_05250, CSC88_02630, CWQ24_18365, PMK1_03261, SM57_00973
Plasmid: pETRUK / Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): Rosetta 2 pLysS
References: UniProt: W9BNU9, UniProt: A6T6Z0*PLUS, serine-tRNA ligase
#2: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C2H6O2
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Ca
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 79 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestN

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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: 4.1 Å3/Da / Density % sol: 70.02 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: Protein at 10 mg/mL in 10 mM Tris pH 7, 100 mM NaCl, 5 mM DTT was mixed with an equal volume of 7.5% w/v PEG 8000, 50 mM CaCl2, 20% v/v Ethylene glycol, 100 mM Morpheus buffer system 1 (MES/Imidazole) pH 6.5.

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SOLEIL / Beamline: PROXIMA 2 / Wavelength: 0.979299 Å
DetectorType: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Sep 7, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979299 Å / Relative weight: 1
ReflectionResolution: 2.23→78.36 Å / Num. obs: 40604 / % possible obs: 100 % / Redundancy: 12.9 % / Biso Wilson estimate: 69.13 Å2 / CC1/2: 0.999 / Rmerge(I) obs: 0.124 / Rpim(I) all: 0.036 / Rrim(I) all: 0.13 / Net I/σ(I): 10 / Num. measured all: 525662
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique obsCC1/2Rpim(I) allRrim(I) allNet I/σ(I) obs% possible all
2.23-2.35132.7187586058390.8180.7812.8291100
7.05-78.3611.30.0541690814910.9980.0160.05728.799.9

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Processing

Software
NameVersionClassification
XDSdata reduction
Aimless0.7.4data scaling
BUSTER2.10.3refinement
PDB_EXTRACT3.25data extraction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6H9X

6h9x


Resolution: 2.41→31.28 Å / Cor.coef. Fo:Fc: 0.931 / Cor.coef. Fo:Fc free: 0.916 / SU R Cruickshank DPI: 0.21 / Cross valid method: THROUGHOUT / σ(F): 0 / SU R Blow DPI: 0.213 / SU Rfree Blow DPI: 0.186 / SU Rfree Cruickshank DPI: 0.186
RfactorNum. reflection% reflectionSelection details
Rfree0.236 1667 5.17 %RANDOM
Rwork0.202 ---
obs0.204 32260 100 %-
Displacement parametersBiso max: 154.12 Å2 / Biso mean: 70.3 Å2 / Biso min: 36.71 Å2
Baniso -1Baniso -2Baniso -3
1--9.2358 Å20 Å20 Å2
2---9.2358 Å20 Å2
3---18.4716 Å2
Refine analyzeLuzzati coordinate error obs: 0.32 Å
Refinement stepCycle: final / Resolution: 2.41→31.28 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3336 0 11 79 3426
Biso mean--74.41 66.15 -
Num. residues----428
Refine LS restraints
Refine-IDTypeNumberRestraint functionWeightDev ideal
X-RAY DIFFRACTIONt_dihedral_angle_d1236SINUSOIDAL2
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes606HARMONIC5
X-RAY DIFFRACTIONt_it3432HARMONIC20
X-RAY DIFFRACTIONt_nbd0SEMIHARMONIC5
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_chiral_improper_torsion442SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact3964SEMIHARMONIC4
X-RAY DIFFRACTIONt_bond_d3432HARMONIC20.01
X-RAY DIFFRACTIONt_angle_deg4648HARMONIC21.12
X-RAY DIFFRACTIONt_omega_torsion3.4
X-RAY DIFFRACTIONt_other_torsion17.71
LS refinement shellResolution: 2.41→2.43 Å / Rfactor Rfree error: 0 / Total num. of bins used: 50
RfactorNum. reflection% reflection
Rfree0.2874 34 5.26 %
Rwork0.2272 612 -
all0.2308 646 -
obs--99.7 %
Refinement TLS params.Method: refined / Origin x: -11.9291 Å / Origin y: -31.6191 Å / Origin z: -9.6698 Å
111213212223313233
T-0.0059 Å20.0486 Å2-0.0222 Å2--0.0827 Å20.0378 Å2---0.1195 Å2
L0.6183 °20.3091 °20.1994 °2-0.4293 °20.6366 °2--1.4416 °2
S0.0431 Å °-0.0586 Å °-0.0965 Å °-0.0309 Å °-0.0061 Å °-0.12 Å °0.1542 Å °0.2747 Å °-0.037 Å °
Refinement TLS groupSelection details: { A|* }

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