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- PDB-2pca: Crystal structure of PH0725 from Pyrococcus horikoshii OT3 -

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Basic information

Entry
Database: PDB / ID: 2pca
TitleCrystal structure of PH0725 from Pyrococcus horikoshii OT3
ComponentsProbable diphthine synthase
KeywordsTRANSFERASE / Pyrococcus horikoshii OT3 / Methyltransferase / S-adenosyl-L-methionine / Structural Genomics / NPPSFA / National Project on Protein Structural and Functional Analyses / RIKEN Structural Genomics/Proteomics Initiative / RSGI
Function / homology
Function and homology information


diphthine synthase / diphthine synthase activity / protein histidyl modification to diphthamide / methylation
Similarity search - Function
Diphthine synthase / Tetrapyrrole methylase, N-terminal domain / Tetrapyrrole methylase, C-terminal domain / Methyltransferase, Cobalt-precorrin-4 Transmethylase; Domain 2 / 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, N-terminal domain / Tetrapyrrole methylase, C-terminal domain / Methyltransferase, Cobalt-precorrin-4 Transmethylase; Domain 2 / 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 / FOURIER SYNTHESIS / Resolution: 2 Å
AuthorsSugahara, M. / Taketa, M. / Morikawa, Y. / Matsuura, Y. / Kunishima, N. / RIKEN Structural Genomics/Proteomics Initiative (RSGI)
CitationJournal: To be Published
Title: Crystal structure of PH0725 from Pyrococcus horikoshii OT3
Authors: Sugahara, M. / Taketa, M. / Morikawa, Y. / Matsuura, Y. / Kunishima, N.
History
DepositionMar 29, 2007Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Oct 2, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.2Nov 10, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif
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.ptnr3_auth_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_ref_seq_dif.details
Revision 1.3Oct 25, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

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


Theoretical massNumber of molelcules
Total (without water)59,6704
Polymers59,2632
Non-polymers4072
Water8,107450
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5120 Å2
ΔGint-38 kcal/mol
Surface area21360 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)105.079, 105.079, 140.133
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212

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Components

#1: Protein Probable diphthine synthase / PH0725 protein (L83M) / Diphthamide biosynthesis methyltransferase


Mass: 29631.404 Da / Num. of mol.: 2 / Mutation: L83M
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pyrococcus horikoshii (archaea) / Gene: dphB / Plasmid: pET-11A / Production host: Escherichia coli (E. coli) / Strain (production host): BL21-CodonPlus(DE3)-RIL / References: UniProt: O58456, diphthine synthase
#2: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#3: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE / S-Adenosyl-L-homocysteine


Type: L-peptide linking / Mass: 384.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H20N6O5S
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 450 / 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: 3.26 Å3/Da / Density % sol: 62.3 %
Crystal growTemperature: 295 K / Method: oil microbatch / pH: 5.5
Details: 3.86M Sodium formate, 0.1M Acetate, pH5.5, oil 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 JUPITER / Detector: CCD / Date: Nov 20, 2006
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2→30 Å / Num. all: 53695 / Num. obs: 53695 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 14.1 % / Biso Wilson estimate: 30.037 Å2 / Rmerge(I) obs: 0.099 / Rsym value: 0.097 / Net I/σ(I): 8.2
Reflection shellResolution: 2→2.07 Å / Redundancy: 13.9 % / Rmerge(I) obs: 0.497 / Mean I/σ(I) obs: 3.3 / Num. unique all: 5275 / Rsym value: 0.483 / % possible all: 100

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Processing

Software
NameClassification
HKL-2000data collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: 1wng
Resolution: 2→29.15 Å / Isotropic thermal model: Anisotrop / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.229 2667 -RANDOM
Rwork0.203 ---
obs0.203 53594 99.8 %-
all-53594 --
Displacement parametersBiso mean: 33 Å2
Baniso -1Baniso -2Baniso -3
1--0.83 Å20 Å20 Å2
2---0.83 Å20 Å2
3---1.66 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.27 Å0.23 Å
Luzzati d res low-5 Å
Luzzati sigma a0.22 Å0.17 Å
Refinement stepCycle: LAST / Resolution: 2→29.15 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4172 0 27 450 4649
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_angle_deg1.3
X-RAY DIFFRACTIONc_bond_d0.007
LS refinement shellResolution: 2→2.07 Å / Rfactor Rfree error: 0.017
RfactorNum. reflection% reflection
Rfree0.27 259 -
Rwork0.244 --
obs-5009 100 %

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