Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0003677 | molecular_function | DNA binding |
| A | 0008168 | molecular_function | methyltransferase activity |
| A | 0008170 | molecular_function | N-methyltransferase activity |
| A | 0009307 | biological_process | DNA restriction-modification system |
| A | 0015667 | molecular_function | site-specific DNA-methyltransferase (cytosine-N4-specific) activity |
| A | 0032259 | biological_process | methylation |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE SAH A 401 |
| Chain | Residue |
| A | GLY33 |
| A | ILE272 |
| A | PHE273 |
| A | GLY274 |
| A | GLY275 |
| A | SER276 |
| A | THR278 |
| A | GLU294 |
| A | MET295 |
| A | TYR299 |
| A | ASP34 |
| A | SER35 |
| A | SER53 |
| A | PRO55 |
| A | HIS246 |
| A | ALA248 |
| A | ARG249 |
| A | PHE250 |
Functional Information from PROSITE/UniProt
| site_id | PS00093 |
| Number of Residues | 6 |
| Details | N4_MTASE N-4 cytosine-specific DNA methylases signature. MTSPPF |
| Chain | Residue | Details |
| A | MET51-PHE56 | |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 3 |
| Details | a catalytic site defined by CSA, PubMed 9207015 |
| Chain | Residue | Details |
| A | PRO54 | |
| A | SER53 | |
| A | ASP96 | |
| site_id | MCSA1 |
| Number of Residues | 3 |
| Details | M-CSA 427 |
| Chain | Residue | Details |
| A | SER53 | proton shuttle (general acid/base) |
| A | PRO54 | electrostatic stabiliser, modifies pKa |
| A | ASP96 | proton shuttle (general acid/base) |
