1BUN
STRUCTURE OF BETA2-BUNGAROTOXIN: POTASSIUM CHANNEL BINDING BY KUNITZ MODULES AND TARGETED PHOSPHOLIPASE ACTION
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | BETA2-BUNGAROTOXIN | polymer | 120 | 13521.4 | 1 | UniProt (P00617) Pfam (PF00068) | Bungarus multicinctus (many-banded krait) | PHOSPHATIDE ACYL-HYDROLASE, PHOSPHATIDYLCHOLINE 2-ACYLHYDROLASE |
| 2 | B (B) | BETA2-BUNGAROTOXIN | polymer | 61 | 7213.3 | 1 | UniProt (P00989) Pfam (PF00014) | Bungarus multicinctus (many-banded krait) | PHOSPHATIDE ACYL-HYDROLASE, PHOSPHATIDYLCHOLINE 2-ACYLHYDROLASE |
| 3 | C, D (A) | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 4 | E, F (A, B) | water | water | 18.0 | 81 | Chemie (HOH) |
Sequence modifications
A: 1 - 120 (UniProt: P00617)
| PDB | External Database | Details |
|---|---|---|
| Gln 66 | Ser 66 | conflict |
| Ser 67 | Gln 67 | conflict |
| Ala 87 | Gly 87 | conflict |
| Asn 103 | Gln 103 | conflict |
| Glu 105 | Asp 105 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 20734.7 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 46.0 | |
| All* | Total formula weight | 20780.7 |
