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- PDB-2hmy: BINARY COMPLEX OF HHAI METHYLTRANSFERASE WITH ADOMET FORMED IN TH... -

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Basic information

Entry
Database: PDB / ID: 2hmy
TitleBINARY COMPLEX OF HHAI METHYLTRANSFERASE WITH ADOMET FORMED IN THE PRESENCE OF A SHORT NONPSECIFIC DNA OLIGONUCLEOTIDE
ComponentsPROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI)
KeywordsTRANSFERASE (METHYLTRANSFERASE)
Function / homology
Function and homology information


DNA (cytosine-5-)-methyltransferase / DNA (cytosine-5-)-methyltransferase activity / DNA restriction-modification system / methylation / DNA binding
Similarity search - Function
: / DNA Methylase, subunit A, domain 2 / DNA Methylase; Chain A, domain 2 / DNA methylase, C-5 cytosine-specific, conserved site / C-5 cytosine-specific DNA methylases C-terminal signature. / DNA methylase, C-5 cytosine-specific, active site / C-5 cytosine-specific DNA methylases active site. / C-5 cytosine-specific DNA methylase (Dnmt) domain profile. / C-5 cytosine methyltransferase / C-5 cytosine-specific DNA methylase ...: / DNA Methylase, subunit A, domain 2 / DNA Methylase; Chain A, domain 2 / DNA methylase, C-5 cytosine-specific, conserved site / C-5 cytosine-specific DNA methylases C-terminal signature. / DNA methylase, C-5 cytosine-specific, active site / C-5 cytosine-specific DNA methylases active site. / C-5 cytosine-specific DNA methylase (Dnmt) domain profile. / C-5 cytosine methyltransferase / C-5 cytosine-specific DNA methylase / Vaccinia Virus protein VP39 / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Alpha-Beta Complex / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
S-ADENOSYLMETHIONINE / Type II methyltransferase M.HhaI
Similarity search - Component
Biological speciesHaemophilus haemolyticus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / OTHER / Resolution: 2.61 Å
AuthorsO'Gara, M. / Zhang, X. / Roberts, R.J. / Cheng, X.
Citation
Journal: J.Mol.Biol. / Year: 1999
Title: Structure of a binary complex of HhaI methyltransferase with S-adenosyl-L-methionine formed in the presence of a short non-specific DNA oligonucleotide.
Authors: O'Gara, M. / Zhang, X. / Roberts, R.J. / Cheng, X.
#1: Journal: Cell(Cambridge,Mass.) / Year: 1993
Title: Crystal structure of the HhaI DNA methyltransferase complexed with S-adenosyl-L-methionine.
Authors: Cheng, X. / Kumar, S. / Posfai, J. / Pflugrath, J.W. / Roberts, R.J.
#2: Journal: Biochemistry / Year: 1992
Title: Purification, crystallization, and preliminary X-ray diffraction analysis of an M.HhaI-AdoMet complex.
Authors: Kumar, S. / Cheng, X. / Pflugrath, J.W. / Roberts, R.J.
History
DepositionFeb 8, 1999Deposition site: BNL / Processing site: RCSB
Revision 1.0Mar 19, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 26, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 6, 2019Group: Data collection / Database references / Category: citation
Item: _citation.page_last / _citation.pdbx_database_id_DOI ..._citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.4Aug 30, 2023Group: 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 / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _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
B: PROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)37,4412
Polymers37,0421
Non-polymers3981
Water1,13563
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)55.300, 74.680, 90.960
Angle α, β, γ (deg.)90.00, 103.00, 90.00
Int Tables number4
Space group name H-MP1211
Noncrystallographic symmetry (NCS)NCS oper: (Code: given
Matrix: (-0.5025, -0.8406, -0.2021), (-0.8419, 0.4226, 0.3357), (-0.1968, 0.3389, -0.92)
Vector: 17.6933, -10.0461, 86.3415)

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Components

#1: Protein PROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI)


Mass: 37042.207 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Haemophilus haemolyticus (bacteria) / Production host: Escherichia coli (E. coli) / References: UniProt: P05102, EC: 2.1.1.73
#2: Chemical ChemComp-SAM / S-ADENOSYLMETHIONINE


Mass: 398.437 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C15H22N6O5S
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 63 / 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: 4.94 Å3/Da / Density % sol: 75.1 %
Crystal growpH: 6 / Details: 2.2M AMMONIUM SULFATE 50 MMSODIUM CITRATE PH 6.0
Crystal grow
*PLUS
Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
12.2 Mammonium sulfate1reservoir
250 mMsodium citrate1reservoir
30.175 Mprotein1drop

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Data collection

DiffractionMean temperature: 95 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X25 / Wavelength: 1
DetectorType: MAR scanner 300 mm plate / Detector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.61→34.5 Å / Num. obs: 20104 / % possible obs: 91.3 % / Redundancy: 2 %

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Processing

Software
NameClassification
PHASESphasing
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: OTHER
Starting model: PDB ENTRY 1HMY

1hmy


Resolution: 2.61→34.5 Å / σ(F): 0
RfactorNum. reflection% reflection
Rwork0.1981 --
obs-20104 91.3 %
Refinement stepCycle: LAST / Resolution: 2.61→34.5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2606 0 27 63 2696
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.012
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.79
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d25.88
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.65
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
LS refinement shellResolution: 2.61→2.75 Å / Total num. of bins used: 7
RfactorNum. reflection% reflection
Rwork0.2945 2104 -
obs--67.1 %
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.198
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg25.88
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.65
LS refinement shell
*PLUS
Rfactor obs: 0.2945

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