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- PDB-6sjo: Methyltransferase of the MtgA D102A mutant from Desulfitobacteriu... -

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Basic information

Entry
Database: PDB / ID: 6sjo
TitleMethyltransferase of the MtgA D102A mutant from Desulfitobacterium hafniense in complex with methyl-tetrahydrofolate
ComponentsTetrahydromethanopterin S-methyltransferase
KeywordsTRANSFERASE / Anaerobic Bacteria / Glycine Betaine Metabolism / Methyl Transfer / Cobalamin / Tetrahydrofolate
Function / homologytetrahydromethanopterin S-methyltransferase / Tetrahydromethanopterin S-methyltransferase, subunit H/Methyltransferase Mtx, subunit H / Tetrahydromethanopterin S-methyltransferase MtrH subunit / Dihydropteroate synthase-like / one-carbon metabolic process / methyltransferase activity / methylation / Chem-THH / Tetrahydromethanopterin S-methyltransferase
Function and homology information
Biological speciesDesulfitobacterium hafniense DCB-2 (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.95 Å
AuthorsBadmann, T. / Groll, M.
Funding support Germany, 1items
OrganizationGrant numberCountry
German Research FoundationSFB1309 Germany
CitationJournal: Chembiochem / Year: 2020
Title: Structures in Tetrahydrofolate Methylation in Desulfitobacterial Glycine Betaine Metabolism at Atomic Resolution.
Authors: Badmann, T. / Groll, M.
History
DepositionAug 13, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 25, 2019Provider: repository / Type: Initial release
Revision 1.1Nov 27, 2019Group: Database references / Category: citation / Item: _citation.title
Revision 1.2Mar 25, 2020Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.year
Revision 1.3Jan 24, 2024Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Tetrahydromethanopterin S-methyltransferase
B: Tetrahydromethanopterin S-methyltransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)67,8488
Polymers66,9292
Non-polymers9206
Water1,36976
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5820 Å2
ΔGint-40 kcal/mol
Surface area23330 Å2
MethodPISA
Unit cell
Length a, b, c (Å)77.030, 84.290, 87.560
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Tetrahydromethanopterin S-methyltransferase


Mass: 33464.258 Da / Num. of mol.: 2 / Mutation: D102A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Desulfitobacterium hafniense DCB-2 (bacteria)
Gene: Dhaf_4327 / Plasmid: pET-28b(+) / Production host: Escherichia coli BL21(DE3) (bacteria)
References: UniProt: B8FUR2, tetrahydromethanopterin S-methyltransferase
#2: Chemical ChemComp-THH / N-[4-({[(6S)-2-AMINO-4-HYDROXY-5-METHYL-5,6,7,8-TETRAHYDROPTERIDIN-6-YL]METHYL}AMINO)BENZOYL]-L-GLUTAMIC ACID / 5-METHYLTETRAHYDROFOLATE


Mass: 459.456 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C20H25N7O6 / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C3H8O3
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 76 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: 2.14 Å3/Da / Density % sol: 42.58 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5 / Details: 100 mM HEPES, 27% PEG 3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SLS / Beamline: X06SA / Wavelength: 1 Å
DetectorType: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Dec 1, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.95→30 Å / Num. obs: 41877 / % possible obs: 99.2 % / Redundancy: 5.1 % / CC1/2: 0.998 / Rmerge(I) obs: 0.092 / Net I/σ(I): 11.5
Reflection shellResolution: 1.95→2.05 Å / Rmerge(I) obs: 0.579 / Mean I/σ(I) obs: 2.6 / Num. unique obs: 5735 / CC1/2: 0.917 / % possible all: 99.2

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Processing

Software
NameVersionClassification
REFMAC5.8.0238refinement
PDB_EXTRACT3.25data extraction
XDSdata reduction
XSCALEdata scaling
REFMACphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1SJ8

1sj8


Resolution: 1.95→30 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.951 / SU B: 11.459 / SU ML: 0.135 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.152
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : WITH TLS ADDED
RfactorNum. reflection% reflectionSelection details
Rfree0.2174 2093 5 %RANDOM
Rwork0.1851 ---
obs0.1869 39770 99.13 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso max: 86.92 Å2 / Biso mean: 31.928 Å2 / Biso min: 19.04 Å2
Baniso -1Baniso -2Baniso -3
1-4.84 Å2-0 Å20 Å2
2---3.19 Å2-0 Å2
3----1.66 Å2
Refinement stepCycle: final / Resolution: 1.95→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4679 0 63 76 4818
Biso mean--57.83 37.11 -
Num. residues----608
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0040.0134837
X-RAY DIFFRACTIONr_bond_other_d0.0020.0174594
X-RAY DIFFRACTIONr_angle_refined_deg1.2971.656551
X-RAY DIFFRACTIONr_angle_other_deg1.2261.58210677
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.9055606
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.81324.19210
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.26415815
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.7861514
X-RAY DIFFRACTIONr_chiral_restr0.0570.2639
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.025373
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02942
X-RAY DIFFRACTIONr_rigid_bond_restr1.01439428
LS refinement shellResolution: 1.95→2 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.292 152 -
Rwork0.277 2896 -
all-3048 -
obs--99.35 %
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
10.01940.0055-0.03780.1334-0.02730.1307-0.0060.00450.00630.00490.00980.00780.01720.0078-0.00370.0030.0011-0.0020.0313-0.00040.039523.81-8.955364.1989
20.06-0.03010.01990.1226-0.01120.08240.0020.0076-0.00790.00440.00240.0056-0.0119-0.0019-0.00440.0026-0.00080.00150.02990.00170.03515.091427.138461.3572
Refinement TLS group
IDRefine-IDRefine TLS-IDAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1A3 - 901
2X-RAY DIFFRACTION2B3 - 306

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