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- PDB-2z6r: Crystal structure of Lys49 to Arg mutant of Diphthine synthase -

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Basic information

Entry
Database: PDB / ID: 2z6r
TitleCrystal structure of Lys49 to Arg mutant of Diphthine synthase
Componentsdiphthine synthase
KeywordsTRANSFERASE / Methyltransferase / S-adenosyl-L-methionine
Function / homology
Function and homology information


diphthine synthase / diphthine synthase activity / protein histidyl modification to diphthamide / methylation
Similarity search - Function
Diphthine synthase / Tetrapyrrole methylase, C-terminal domain / Methyltransferase, Cobalt-precorrin-4 Transmethylase; Domain 2 / Tetrapyrrole methylase, N-terminal domain / Tetrapyrrole methylase, subdomain 2 / Cobalt-precorrin-4 Transmethylase; domain 1 / Tetrapyrrole methylase / Tetrapyrrole (Corrin/Porphyrin) Methylases / Tetrapyrrole methylase, subdomain 1 / Tetrapyrrole methylase superfamily ...Diphthine synthase / Tetrapyrrole methylase, C-terminal domain / Methyltransferase, Cobalt-precorrin-4 Transmethylase; Domain 2 / Tetrapyrrole methylase, N-terminal domain / Tetrapyrrole methylase, subdomain 2 / Cobalt-precorrin-4 Transmethylase; domain 1 / Tetrapyrrole methylase / Tetrapyrrole (Corrin/Porphyrin) Methylases / Tetrapyrrole methylase, subdomain 1 / Tetrapyrrole methylase superfamily / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
S-ADENOSYL-L-HOMOCYSTEINE / Diphthine synthase
Similarity search - Component
Biological speciesPyrococcus horikoshii (archaea)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.5 Å
AuthorsMizutani, H. / Matsuura, Y. / Krishna Swamy, B.S. / Simanshu, D.K. / Murthy, M.R.N. / Kunishima, N.
CitationJournal: Acta Crystallogr.,Sect.D / Year: 2008
Title: Systematic study on crystal-contact engineering of diphthine synthase: influence of mutations at crystal-packing regions on X-ray diffraction quality.
Authors: Mizutani, H. / Saraboji, K. / Malathy Sony, S.M. / Ponnuswamy, M.N. / Kumarevel, T. / Krishna Swamy, B.S. / Simanshu, D.K. / Murthy, M.R. / Kunishima, N.
History
DepositionAug 8, 2007Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 28, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Source and taxonomy / Version format compliance
Revision 1.2Nov 10, 2021Group: Database references / Derived calculations / Category: database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.3Nov 1, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.4Aug 6, 2025Group: Data collection / Database references / Structure summary
Category: chem_comp / citation ...chem_comp / citation / citation_author / pdbx_entry_details
Item: _chem_comp.mon_nstd_flag / _chem_comp.type ..._chem_comp.mon_nstd_flag / _chem_comp.type / _citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: diphthine synthase
B: diphthine synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)61,20216
Polymers59,2832
Non-polymers1,91914
Water14,646813
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7990 Å2
MethodPISA
Unit cell
Length a, b, c (Å)104.501, 104.501, 137.523
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212
Components on special symmetry positions
IDModelComponents
11A-1916-

HOH

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein diphthine synthase / Diphthamide biosynthesis methyltransferase


Mass: 29641.381 Da / Num. of mol.: 2 / Mutation: K49R
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pyrococcus horikoshii (archaea) / Strain: OT3 / Plasmid: pET11a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21-CodonPlus(DE3)-RIL / References: UniProt: O58456, diphthine synthase

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Non-polymers , 5 types, 827 molecules

#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE


Mass: 384.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H20N6O5S
#4: Chemical ChemComp-MES / 2-(N-MORPHOLINO)-ETHANESULFONIC ACID


Mass: 195.237 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C6H13NO4S / Comment: pH buffer*YM
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C3H8O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 813 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationN

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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: 3.17 Å3/Da / Density % sol: 61.16 %
Crystal growTemperature: 295 K / Method: microbatch / pH: 6.5
Details: 1.8M AMMONIUM SULFATE, 0.1M MES, 0.01M Co CHLORIDE , pH 6.5, microbatch, temperature 295K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL26B1 / Wavelength: 1 Å
DetectorType: RIGAKU RAXIS V / Detector: IMAGE PLATE / Date: Oct 5, 2006
RadiationMonochromator: bending magnet / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.5→30 Å / Num. all: 121413 / Num. obs: 121413 / % possible obs: 99.9 % / Observed criterion σ(F): -3 / Observed criterion σ(I): -3 / Redundancy: 10.7 % / Biso Wilson estimate: 22.4 Å2 / Rmerge(I) obs: 0.083 / Rsym value: 0.08 / Net I/σ(I): 13.9
Reflection shellResolution: 1.5→1.55 Å / Redundancy: 10.6 % / Rmerge(I) obs: 0.399 / Mean I/σ(I) obs: 5.65 / Num. unique all: 12000 / Rsym value: 0.38 / % possible all: 100

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1WNG

1wng


Resolution: 1.5→30 Å / Rfactor Rfree error: 0.003 / Data cutoff high absF: 2182780.03 / 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
Rfree0.206 6078 5 %RANDOM
Rwork0.196 ---
all0.197 121327 --
obs0.196 121327 99.6 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 51.1267 Å2 / ksol: 0.371901 e/Å3
Displacement parametersBiso mean: 22.3 Å2
Baniso -1Baniso -2Baniso -3
1--0.27 Å20 Å20 Å2
2---0.27 Å20 Å2
3---0.54 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.19 Å0.18 Å
Luzzati d res low-5 Å
Luzzati sigma a0.12 Å0.11 Å
Refinement stepCycle: LAST / Resolution: 1.5→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4168 0 115 813 5096
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
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_deg1.4
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d23
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.85
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it0.991.5
X-RAY DIFFRACTIONc_mcangle_it1.512
X-RAY DIFFRACTIONc_scbond_it1.762
X-RAY DIFFRACTIONc_scangle_it2.62.5
LS refinement shellResolution: 1.5→1.59 Å / Rfactor Rfree error: 0.009 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.278 1006 5.1 %
Rwork0.258 18796 -
obs--99 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.paramwater.top
X-RAY DIFFRACTION3ion.paramion.top
X-RAY DIFFRACTION4sah.paramsah.top
X-RAY DIFFRACTION5gol.paramgol.top
X-RAY DIFFRACTION6mes.parammes.top

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