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- PDB-3epj: Crystallographic snapshots of eukaryotic dimethylallyltransferase... -

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Basic information

Entry
Database: PDB / ID: 3epj
TitleCrystallographic snapshots of eukaryotic dimethylallyltransferase acting on tRNA: Insight into tRNA recognition and reaction mechanism
Components
  • tRNA
  • tRNA isopentenyltransferase
KeywordsTransferase/RNA / Transferase / Alternative initiation / ATP-binding / Cytoplasm / Mitochondrion / Nucleotide-binding / Nucleus / tRNA processing / Transferase-RNA COMPLEX
Function / homology
Function and homology information


tRNA dimethylallyltransferase / tRNA dimethylallyltransferase activity / tRNA modification / tRNA binding / nucleolus / mitochondrion / zinc ion binding / ATP binding / nucleus / cytosol
Similarity search - Function
tRNA isopentenyltransferase, eukaryotes / Histone, subunit A - #140 / IPP transferase / Dimethylallyltransferase / IPP transferase / Classic Zinc Finger / Histone, subunit A / Double Stranded RNA Binding Domain / P-loop containing nucleotide triphosphate hydrolases / Rossmann fold ...tRNA isopentenyltransferase, eukaryotes / Histone, subunit A - #140 / IPP transferase / Dimethylallyltransferase / IPP transferase / Classic Zinc Finger / Histone, subunit A / Double Stranded RNA Binding Domain / P-loop containing nucleotide triphosphate hydrolases / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase / 2-Layer Sandwich / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
RNA / RNA (> 10) / tRNA dimethylallyltransferase
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 3.1 Å
AuthorsHuang, R.H. / Zhou, C.
CitationJournal: Proc.Natl.Acad.Sci.Usa / Year: 2008
Title: Crystallographic snapshots of eukaryotic dimethylallyltransferase acting on tRNA: insight into tRNA recognition and reaction mechanism.
Authors: Zhou, C. / Huang, R.H.
History
DepositionSep 29, 2008Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 4, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Feb 21, 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 / struct_conn / struct_ncs_dom_lim / struct_ref_seq / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id / _struct_ref_seq.db_align_beg / _struct_ref_seq.db_align_end / _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

Downloads & links

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Assembly

Deposited unit
A: tRNA isopentenyltransferase
E: tRNA
B: tRNA isopentenyltransferase
F: tRNA
hetero molecules


Theoretical massNumber of molelcules
Total (without water)141,36622
Polymers140,8464
Non-polymers52018
Water3,549197
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
A: tRNA isopentenyltransferase
E: tRNA
hetero molecules


Theoretical massNumber of molelcules
Total (without water)70,70712
Polymers70,4232
Non-polymers28410
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5840 Å2
ΔGint-108 kcal/mol
Surface area28610 Å2
MethodPISA
3
B: tRNA isopentenyltransferase
F: tRNA
hetero molecules


Theoretical massNumber of molelcules
Total (without water)70,65910
Polymers70,4232
Non-polymers2368
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5550 Å2
ΔGint-89 kcal/mol
Surface area28950 Å2
MethodPISA
Unit cell
Length a, b, c (Å)162.920, 211.033, 126.228
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number20
Space group name H-MC2221
Components on special symmetry positions
IDModelComponents
11B-487-

HOH

Noncrystallographic symmetry (NCS)NCS domain: (Details: chain A,B, using restrain)
NCS domain segments:

Dom-ID: 1 / Ens-ID: 1 / Beg auth comp-ID: SER / Beg label comp-ID: SER / End auth comp-ID: ASP / End label comp-ID: ASP / Auth seq-ID: 13 - 415 / Label seq-ID: 1 - 403

Component-IDAuth asym-IDLabel asym-ID
1AA
2BC

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Components

#1: Protein tRNA isopentenyltransferase / Isopentenyl-diphosphate: tRNA isopentenyltransferase / IPP transferase / IPTase / IPPT


Mass: 48199.000 Da / Num. of mol.: 2 / Fragment: UNP residues 13-421
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: MOD5 / Plasmid: pLM-1 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P07884, EC: 2.5.1.8
#2: RNA chain tRNA


Mass: 22224.121 Da / Num. of mol.: 2 / Source method: obtained synthetically
Details: RNA was prepared by in vitro transcription with T7 RNA polymerase
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#4: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 16 / Source method: obtained synthetically / Formula: Mg
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 197 / 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: 3.85 Å3/Da / Density % sol: 68.07 %
Crystal growTemperature: 278 K / Method: vapor diffusion / pH: 6.5
Details: Pentaerythritol propoxylate 426, pH 6.5, vapor diffusion, temperature 278K, , VAPOR DIFFUSION
Components of the solutionsName: Pentaerythritol propoxylate 426

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Data collection

Diffraction
IDMean temperature (K)Crystal-ID
11001
21
Diffraction source
SourceSiteBeamlineIDWavelengthWavelength (Å)
SYNCHROTRONAPS 21-ID-F10.97850.9785
SYNCHROTRONAPS 21-ID-G20.97850.9785
Detector
TypeIDDetectorDate
MARMOSAIC 225 mm CCD1CCDNov 12, 2007
MARMOSAIC 300 mm CCD2CCDNov 12, 2007
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9785 Å / Relative weight: 1
ReflectionResolution: 3.1→50 Å / Num. obs: 36730

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Processing

Software
NameVersionClassificationNB
CNSrefinement
PDB_EXTRACT3.006data extraction
RefinementResolution: 3.1→50 Å / Occupancy max: 1.01 / Occupancy min: 1 / FOM work R set: 0.843 / σ(F): 2516
RfactorNum. reflection% reflection
Rfree0.24 2780 7 %
Rwork0.198 --
obs-34214 86 %
Solvent computationBsol: 28 Å2
Displacement parametersBiso max: 200 Å2 / Biso mean: 90.092 Å2 / Biso min: 22.73 Å2
Baniso -1Baniso -2Baniso -3
1--23.328 Å20 Å20 Å2
2--39.895 Å20 Å2
3----16.567 Å2
Refinement stepCycle: LAST / Resolution: 3.1→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6678 2944 18 197 9837
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.007
X-RAY DIFFRACTIONc_angle_deg1.211
X-RAY DIFFRACTIONc_mcbond_it1.2821.5
X-RAY DIFFRACTIONc_scbond_it1.6152
X-RAY DIFFRACTIONc_mcangle_it2.2672
X-RAY DIFFRACTIONc_scangle_it2.6732.5
Refine LS restraints NCSRms: 0.072 / Type: restrain / Weight: 100
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2dna-rna_rep.paramdna-rna.top
X-RAY DIFFRACTION3water_rep.paramwater.top
X-RAY DIFFRACTION4ion.paramion.top
X-RAY DIFFRACTION5ligands.parligands.top

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