1HMY image
Deposition Date 1993-08-05
Release Date 1993-10-31
Last Version Date 2024-12-25
Entry Detail
PDB ID:
1HMY
Keywords:
TRANSFERASE(METHYLTRANSFERASE)
Title:
CRYSTAL STRUCTURE OF THE HHAI DNA METHYLTRANSFERASE COMPLEXED WITH S-ADENOSYL-L-METHIONINE
Biological Source:
Source Organism:
Haemophilus haemolyticus (Taxon ID: 726)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.50 Å
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 1 21 1
1HMY validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:HaeIII METHYLTRANSFERASE
Gene (Uniprot):hhaIM
Chain IDs:A
Chain Length:327
Number of Molecules:1
Biological Source:Haemophilus haemolyticus
UniProt ID:P05102 Pfam ID:PF00145 EC:2.1.1.37
Ligand Molecules
SAM
Primary Citation
Crystal structure of the HhaI DNA methyltransferase complexed with S-adenosyl-L-methionine.
Cell(Cambridge,Mass.) 74 299 307 (1993)
PMID: 8343957 DOI: 10.1016/0092-8674(93)90421-L

Abstact

The first three-dimensional structure of a DNA methyltransferase is presented. The crystal structure of the DNA (cytosine-5)-methyltransferase, M.HhaI (recognition sequence: GCGC), complexed with S-adenosyl-L-methionine has been determined and refined at 2.5 A resolution. The core of the structure is dominated by sequence motifs conserved among all DNA (cytosine-5)-methyltransferases, and these are responsible for cofactor binding and methyltransferase function.

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Protein

Chemical

Disease

Primary Citation of related structures
1HMY