Functional Information from GO Data
| Chain | GOid | namespace | contents | 
| A | 0003824 | molecular_function | catalytic activity | 
| A | 0003908 | molecular_function | methylated-DNA-[protein]-cysteine S-methyltransferase activity | 
| A | 0006281 | biological_process | DNA repair | 
| B | 0003824 | molecular_function | catalytic activity | 
| B | 0003908 | molecular_function | methylated-DNA-[protein]-cysteine S-methyltransferase activity | 
| B | 0006281 | biological_process | DNA repair | 
| C | 0003824 | molecular_function | catalytic activity | 
| C | 0003908 | molecular_function | methylated-DNA-[protein]-cysteine S-methyltransferase activity | 
| C | 0006281 | biological_process | DNA repair | 
Functional Information from PDB Data
| site_id | AC1 | 
| Number of Residues | 5 | 
| Details | BINDING SITE FOR RESIDUE ZN A 301 | 
| Chain | Residue | 
| A | CYS5 | 
| A | MET7 | 
| A | CYS24 | 
| A | HIS29 | 
| A | HIS85 | 
| site_id | AC2 | 
| Number of Residues | 4 | 
| Details | BINDING SITE FOR RESIDUE ZN C 302 | 
| Chain | Residue | 
| C | CYS5 | 
| C | CYS24 | 
| C | HIS29 | 
| C | HIS85 | 
| site_id | AC3 | 
| Number of Residues | 5 | 
| Details | BINDING SITE FOR RESIDUE ZN B 303 | 
| Chain | Residue | 
| B | CYS5 | 
| B | MET7 | 
| B | CYS24 | 
| B | HIS29 | 
| B | HIS85 | 
Functional Information from PROSITE/UniProt
| site_id | PS00374 | 
| Number of Residues | 7 | 
| Details | MGMT Methylated-DNA--protein-cysteine methyltransferase active site. IPCHRVV | 
| Chain | Residue | Details | 
| A | ILE143-VAL149 |  | 
| site_id | PS00639 | 
| Number of Residues | 11 | 
| Details | THIOL_PROTEASE_HIS Eukaryotic thiol (cysteine) proteases histidine active site. GLHEIKLLGKG | 
| Chain | Residue | Details | 
| A | GLY27-GLY37 |  | 
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 | 
| Number of Residues | 3 | 
| Details | Active site: {"description":"Nucleophile; methyl group acceptor"} | 
| site_id | SWS_FT_FI2 | 
| Number of Residues | 12 | 
| Details | Binding site: {} | 
| site_id | SWS_FT_FI3 | 
| Number of Residues | 18 | 
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"10747039","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"15964013","evidenceCode":"ECO:0000269"}]} | 
| site_id | SWS_FT_FI4 | 
| Number of Residues | 3 | 
| Details | Modified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]} | 
Catalytic Information from CSA
| site_id | CSA1 | 
| Number of Residues | 4 | 
| Details | Annotated By Reference To The Literature 1eh6 | 
| Chain | Residue | Details | 
| A | GLU172 |  | 
| A | CYS145 |  | 
| A | ASN137 |  | 
| A | HIS146 |  | 
| site_id | CSA2 | 
| Number of Residues | 4 | 
| Details | Annotated By Reference To The Literature 1eh6 | 
| Chain | Residue | Details | 
| B | GLU172 |  | 
| B | CYS145 |  | 
| B | ASN137 |  | 
| B | HIS146 |  | 
| site_id | CSA3 | 
| Number of Residues | 4 | 
| Details | Annotated By Reference To The Literature 1eh6 | 
| Chain | Residue | Details | 
| C | GLU172 |  | 
| C | CYS145 |  | 
| C | ASN137 |  | 
| C | HIS146 |  | 
| site_id | MCSA1 | 
| Number of Residues | 5 | 
| Details | M-CSA 251 | 
| site_id | MCSA2 | 
| Number of Residues | 5 | 
| Details | M-CSA 251 | 
| site_id | MCSA3 | 
| Number of Residues | 5 | 
| Details | M-CSA 251 |