ID   2.1.1.113
DE   site-specific DNA-methyltransferase (cytosine-N(4)-specific).
AN   modification methylase.
AN   N(4)-cytosine-specific DNA methylase.
AN   restriction-modification system.
CA   a 2'-deoxycytidine in DNA + S-adenosyl-L-methionine = an N(4)-methyl-
CA   2'-deoxycytidine in DNA + H(+) + S-adenosyl-L-homocysteine.
CC   -!- This is a large group of enzymes, the majority of which, with enzymes
CC       of similar site specificity listed as EC 3.1.21.3, EC 3.1.21.4 and
CC       EC 3.1.21.5, form so-called restriction-modification systems.
CC   -!- See the REBASE database for a complete list of these enzymes:
CC       http://rebase.neb.com/rebase/
DR   P0A462, MTA1_ANAVA ;  P0A461, MTA1_NOSS1 ;  P23941, MTB1_BACAM ;
DR   O68556, MTB1_BACIU ;  Q9LAI2, MTB1_BACSQ ;  P70986, MTB1_GEOSE ;
DR   P18051, MTB2_BACAM ;  Q45489, MTB2_BACIU ;  Q04845, MTC1_CITFR ;
DR   P14243, MTC9_CITFR ;  P29568, MTHZ_METTF ;  Q58392, MTM1_METJA ;
DR   Q58843, MTM2_METJA ;  Q58893, MTM5_METJA ;  Q58606, MTM6_METJA ;
DR   P14244, MTMV_KOCVA ;  O59647, MTMW_METWO ;  P11409, MTP2_PROHU ;
DR   O52692, MTS1_STRCS ;  O52513, MTS1_STRFI ;  P14230, MTSM_SERMA ;
DR   P30774, MTX1_XANCC ;
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