1BUN
STRUCTURE OF BETA2-BUNGAROTOXIN: POTASSIUM CHANNEL BINDING BY KUNITZ MODULES AND TARGETED PHOSPHOLIPASE ACTION
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004623 | molecular_function | phospholipase A2 activity |
| A | 0005102 | molecular_function | signaling receptor binding |
| A | 0005509 | molecular_function | calcium ion binding |
| A | 0005543 | molecular_function | phospholipid binding |
| A | 0005576 | cellular_component | extracellular region |
| A | 0006629 | biological_process | lipid metabolic process |
| A | 0006633 | biological_process | fatty acid biosynthetic process |
| A | 0006644 | biological_process | phospholipid metabolic process |
| A | 0016042 | biological_process | lipid catabolic process |
| A | 0016787 | molecular_function | hydrolase activity |
| A | 0035821 | biological_process | modulation of process of another organism |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0047498 | molecular_function | calcium-dependent phospholipase A2 activity |
| A | 0048146 | biological_process | positive regulation of fibroblast proliferation |
| A | 0050482 | biological_process | arachidonic acid secretion |
| A | 0090729 | molecular_function | toxin activity |
| B | 0004867 | molecular_function | serine-type endopeptidase inhibitor activity |
| B | 0005576 | cellular_component | extracellular region |
| B | 0005615 | cellular_component | extracellular space |
| B | 0015459 | molecular_function | potassium channel regulator activity |
| B | 0035821 | biological_process | modulation of process of another organism |
| B | 0090729 | molecular_function | toxin activity |
| B | 0099106 | molecular_function | ion channel regulator activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE NA A 121 |
| Chain | Residue |
| A | TYR28 |
| A | GLY30 |
| A | GLY32 |
| A | ASP49 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE NA A 122 |
| Chain | Residue |
| A | ASP39 |
| A | ALA40 |
| A | LEU41 |
| A | GLU105 |
Functional Information from PROSITE/UniProt
| site_id | PS00118 |
| Number of Residues | 8 |
| Details | PA2_HIS Phospholipase A2 histidine active site. CCYvHDnC |
| Chain | Residue | Details |
| A | CYS44-CYS51 |
| site_id | PS00119 |
| Number of Residues | 11 |
| Details | PA2_ASP Phospholipase A2 aspartic acid active site. VCDCDRTAaLC |
| Chain | Residue | Details |
| A | VAL90-CYS100 |
| site_id | PS00280 |
| Number of Residues | 19 |
| Details | BPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FryGGCngngnhFksdhlC |
| Chain | Residue | Details |
| B | PHE35-CYS53 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | ACT_SITE: ACT_SITE => ECO:0000250|UniProtKB:P14418 |
| Chain | Residue | Details |
| A | ARG75 |
| site_id | SWS_FT_FI2 |
| Number of Residues | 4 |
| Details | BINDING: BINDING => ECO:0000305|PubMed:8590005 |
| Chain | Residue | Details |
| A | ALA55 | |
| A | LYS57 | |
| A | HIS59 | |
| A | THR76 |
