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InterPro: IPR001525 DNA methylase, C-5 cytosine-specific

Protein matchesHelp
UniProtKB
Matches:
2545 proteins
AccessionHelp IPR001525 C5_DNA_meth
TypeHelp Domain
SignaturesHelp
InterPro RelationshipsHelp
Found in IPR017198 DNA (cytosine-5)-methyltransferase 1
Contains IPR018117 DNA methylase, C-5 cytosine-specific, active site
GO Term annotationHelp
Process GO:0006306 DNA methylation
Function GO:0003677 DNA binding
InterPro annotation
BioMart Logo Entry Details in BioMart
AbstractHelp

C-5 cytosine-specific DNA methylases (EC:2.1.1.37) (C5 Mtase) are enzymes that specifically methylate the C-5 carbon of cytosines in DNA to produce C5-methylcytosine [1, 2, 3]. In mammalian cells, cytosine-specific methyltransferases methylate certain CpG sequences, which are believed to modulate gene expression and cell differentiation. In bacteria, these enzymes are a component of restriction-modification systems and serve as valuable tools for the manipulation of DNA [4, 2]. The structure of HhaI methyltransferase (M.HhaI) has been resolved to 2.5 A [5]: the molecule folds into 2 domains - a larger catalytic domain containing catalytic and cofactor binding sites, and a smaller DNA recognition domain.

Structural linksHelp
SCOP: c.66.1.26
Database linksHelp
PDBe-motif: PS00094 , PS00095
Enzyme: EC:2.1.1.37
PROSITE doc: PDOC00089
PANDIT: PF00145
Blocks: IPB001525
Pfam Clan: CL0102.19

Taxonomic coverageHelp

Overlapping InterPro entriesHelp
IPR001525 Numbers of overlapping proteins Average numbers of overlapping amino acids

Example proteinsHelp
B1Q3J6 DNA (cytosine-5)-methyltransferase 1B

O14717 tRNA (cytosine-5-)-methyltransferase

O49139 Putative DNA (cytosine-5)-methyltransferase CMT1

O88509 DNA (cytosine-5)-methyltransferase 3B

P45968 Chromo domain-containing protein T09A5.8

More proteins


Example Proteins Key


InterPro entry accession number/name and structure databases Colour code
IPR000953 Chromo domain
IPR017984 Chromo domain subgroup
IPR000313 PWWP
IPR001525 DNA methylase, C-5 cytosine-specific
IPR017198 DNA (cytosine-5)-methyltransferase 1
IPR011011 Zinc finger, FYVE/PHD-type
IPR016197 Chromo domain-like
IPR001025 Bromo adjacent homology (BAH) domain
IPR018117 DNA methylase, C-5 cytosine-specific, active site
PDB Chain
ModBase
CATH Domain
SWISS-MODEL
SCOP Domain

PublicationsHelp
1. Posfai J, Bhagwat AS, Roberts RJ.
Sequence motifs specific for cytosine methyltransferases.
Gene 74 261-5 1988 [PubMed: 3248729]
http://dx.doi.org/10.1016/0378-1119(88)90299-5
2. Kumar S, Cheng X, Klimasauskas S, Mi S, Posfai J, Roberts RJ, Wilson GG.
The DNA (cytosine-5) methyltransferases.
Nucleic Acids Res. 22 1-10 1994 [PubMed: 8127644]
http://dx.doi.org/10.1093/nar/22.1.1
3. Lauster R, Trautner TA, Noyer-Weidner M.
Cytosine-specific type II DNA methyltransferases. A conserved enzyme core with variable target-recognizing domains.
J. Mol. Biol. 206 305-12 1989 [PubMed: 2716049]
http://dx.doi.org/10.1016/0022-2836(89)90480-4
4. Cheng X.
DNA modification by methyltransferases.
Curr. Opin. Struct. Biol. 5 4-10 1995 [PubMed: 7773746]
http://dx.doi.org/10.1016/0959-440X(95)80003-J
5. Cheng X, Kumar S, Posfai J, Pflugrath JW, Roberts RJ.
Crystal structure of the HhaI DNA methyltransferase complexed with S-adenosyl-L-methionine.
Cell 74 299-307 1993 [PubMed: 8343957]
http://dx.doi.org/10.1016/0092-8674(93)90421-L

Additional ReadingHelp
Youngblood B, Shieh FK, De Los Rios S, Perona JJ, Reich NO.
Engineered extrahelical base destabilization enhances sequence discrimination of DNA methyltransferase M.HhaI.
J. Mol. Biol. 362 2006 334-46 [PubMed: 16919299]
http://dx.doi.org/10.1016/j.jmb.2006.07.031
Neely RK, Daujotyte D, Grazulis S, Magennis SW, Dryden DT, Klimasauskas S, Jones AC.
Time-resolved fluorescence of 2-aminopurine as a probe of base flipping in M.HhaI-DNA complexes.
Nucleic Acids Res. 33 2005 6953-60 [PubMed: 16340006]
http://dx.doi.org/10.1093/nar/gki995
Shieh FK, Reich NO.
AdoMet-dependent methyl-transfer: Glu119 is essential for DNA C5-cytosine methyltransferase M.HhaI.
J. Mol. Biol. 373 2007 1157-68 [PubMed: 17897676]
http://dx.doi.org/10.1016/j.jmb.2007.08.009
Verdine GL.
The flip side of DNA methylation.
Cell 76 1994 197-200 [PubMed: 8293456]
http://dx.doi.org/10.1016/0092-8674(94)90326-3
Youngblood B, Shieh FK, Buller F, Bullock T, Reich NO.
S-adenosyl-L-methionine-dependent methyl transfer: observable precatalytic intermediates during DNA cytosine methylation.
Biochemistry 46 2007 8766-75 [PubMed: 17616174]
http://dx.doi.org/10.1021/bi7005948
Shieh FK, Youngblood B, Reich NO.
The role of Arg165 towards base flipping, base stabilization and catalysis in M.HhaI.
J. Mol. Biol. 362 2006 516-27 [PubMed: 16926025]
http://dx.doi.org/10.1016/j.jmb.2006.07.030
Klimasauskas S, Kumar S, Roberts RJ, Cheng X.
HhaI methyltransferase flips its target base out of the DNA helix.
Cell 76 1994 357-69 [PubMed: 8293469]
http://dx.doi.org/10.1016/0092-8674(94)90342-5
Som S, Bhagwat AS, Friedman S.
Nucleotide sequence and expression of the gene encoding the EcoRII modification enzyme.
Nucleic Acids Res. 15 1987 313-32 [PubMed: 3029675]
http://dx.doi.org/10.1093/nar/15.1.313
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InterPro 23.1