2A9H
NMR structural studies of a potassium channel / charybdotoxin complex
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, B, C, D) | Voltage-gated potassium channel | polymer | 155 | 16717.5 | 4 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) | Streptomyces lividans | |
| 2 | E (E) | charybdotoxin | polymer | 37 | 4310.0 | 1 | Pfam (PF00451) UniProt (by SIFTS) (P13487) |
Sequence modifications
A, B, C, D: 1 - 132 (UniProt: P0A334)
| PDB | External Database | Details |
|---|---|---|
| Met -22 | - | cloning artifact |
| Ser -21 | - | cloning artifact |
| Gly -20 | - | cloning artifact |
| Ser -19 | - | cloning artifact |
| His -18 | - | expression tag |
| His -17 | - | expression tag |
| His -16 | - | expression tag |
| His -15 | - | expression tag |
| His -14 | - | expression tag |
| His -13 | - | expression tag |
| Ser -12 | - | cloning artifact |
| Ser -11 | - | cloning artifact |
| Gly -10 | - | cloning artifact |
| Ile -9 | - | cloning artifact |
| Glu -8 | - | cloning artifact |
| Gly -7 | - | cloning artifact |
| Arg -6 | - | cloning artifact |
| Gly -5 | - | cloning artifact |
| Arg -4 | - | cloning artifact |
| Leu -3 | - | cloning artifact |
| Ile -2 | - | cloning artifact |
| Lys -1 | - | cloning artifact |
| His 0 | - | cloning artifact |
| Ala 58 | Gln 58 | engineered mutation |
| Ser 61 | Thr 61 | engineered mutation |
| Asp 64 | Arg 64 | engineered mutation |
| Cys 90 | Leu 90 | engineered mutation |
| Tyr 103 | Phe 103 | engineered mutation |
| Phe 107 | Thr 107 | engineered mutation |
| Val 110 | Leu 110 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 5 |
| Total formula weight | 71179.9 | |
| All* | Total formula weight | 71179.9 |
