8J2O
Crystal Structure of Human Carbonic Anhydrase II In-complex with Acetohexamide at 2.6 A Resolution
Functional Information from PROSITE/UniProt
| site_id | PS00162 |
| Number of Residues | 17 |
| Details | ALPHA_CA_1 Alpha-carbonic anhydrases signature. SEHtVdkkkYaaELHLV |
| Chain | Residue | Details |
| A | SER105-VAL121 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | ACT_SITE: Proton donor/acceptor => ECO:0000305|PubMed:15667203, ECO:0000305|PubMed:17330962 |
| Chain | Residue | Details |
| A | HIS64 |
| Chain | Residue | Details |
| A | HIS94 |
| Chain | Residue | Details |
| A | HIS96 | |
| A | HIS119 |
| site_id | SWS_FT_FI4 |
| Number of Residues | 1 |
| Details | BINDING: BINDING => ECO:0000269|PubMed:10550681, ECO:0000269|PubMed:19520834 |
| Chain | Residue | Details |
| A | THR199 |
| site_id | SWS_FT_FI5 |
| Number of Residues | 1 |
| Details | SITE: Fine-tunes the proton-transfer properties of H-64 => ECO:0000305|PubMed:17330962 |
| Chain | Residue | Details |
| A | TYR7 |
| site_id | SWS_FT_FI6 |
| Number of Residues | 2 |
| Details | SITE: Fine-tunes the proton-transfer properties of H-64; involved in the binding of some activators, including histamine and L-histidine => ECO:0000269|PubMed:16214338, ECO:0000269|PubMed:9265618, ECO:0000305|PubMed:17330962 |
| Chain | Residue | Details |
| A | ASN62 | |
| A | ASN67 |
| site_id | SWS_FT_FI7 |
| Number of Residues | 1 |
| Details | SITE: Involved in the binding of some activators, including histamine and L-histidine => ECO:0000269|PubMed:16214338, ECO:0000269|PubMed:9265618, ECO:0000305|PubMed:17330962 |
| Chain | Residue | Details |
| A | GLN92 |
| site_id | SWS_FT_FI8 |
| Number of Residues | 1 |
| Details | MOD_RES: Phosphoserine => ECO:0000250|UniProtKB:P27139 |
| Chain | Residue | Details |
| A | SER2 |
| site_id | SWS_FT_FI9 |
| Number of Residues | 2 |
| Details | MOD_RES: Phosphoserine => ECO:0007744|PubMed:24275569 |
| Chain | Residue | Details |
| A | SER166 | |
| A | SER173 |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 6 |
| Details | M-CSA 216 |
| Chain | Residue | Details |
| A | HIS64 | hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor |
| A | HIS94 | metal ligand |
| A | HIS96 | metal ligand |
| A | GLU106 | activator, electrostatic stabiliser, hydrogen bond acceptor |
| A | HIS119 | metal ligand |
| A | THR199 | activator, electrostatic stabiliser, hydrogen bond acceptor, hydrogen bond donor, increase nucleophilicity |
