Site-specific DNA-methyltransferase (cytosine-N4-specific)

Site-specific DNA-methyltransferase (cytosine-N4-specific)
Identifiers
EC number 2.1.1.113
CAS number 169592-50-1
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum

Site-specific DNA-methyltransferase (cytosine-N4-specific) (EC 2.1.1.113, modification methylase, restriction-modification system, DNA[cytosine-N4]methyltransferase, m4C-forming MTase, S-adenosyl-L-methionine:DNA-cytosine 4-N-methyltransferase) is an enzyme with systematic name S-adenosyl-L-methionine:DNA-cytosine N4-methyltransferase.[1][2][3][4] This enzyme catalyses the following chemical reaction

S-adenosyl-L-methionine + DNA cytosine S-adenosyl-L-homocysteine + DNA N4-methylcytosine

This is a large group of enzymes.[5]

References

  1. Kessler, C.; Manta, V. (1990). "Specificity of restriction endonucleases and DNA modification methyltransferases: a review". Gene. 92: 1–248. doi:10.1016/0378-1119(90)90486-B. PMID 2172084.
  2. Klimasauskas, S.; Timinskas, A.; Menkevicius, S.; Butkiene, D.; Butkus, V.; Janulaitis, A. (1989). "Sequence motifs characteristic of DNA[cytosine-N4]methyltransferases: similarity to adenine and cytosine-C5 DNA-methylases". Nucleic Acids Res. 17: 9823–9832. doi:10.1093/nar/17.23.9823. PMID 2690010.
  3. Roberts, R.J. (1990). "Restriction enzymes and their isoschizomers". Nucleic Acids Res. 18: 2331–2365. doi:10.1093/nar/18.suppl.2331. PMID 2159140.
  4. Yuan, R. (1981). "Structure and mechanism of multifunctional restriction endonucleases". Annu. Rev. Biochem. 50: 285–319. doi:10.1146/annurev.bi.50.070181.001441. PMID 6267988.
  5. R.J. Roberts. "A complete listing of all of these enzymes".

See also

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