4MSW
Y78 ester mutant of KcsA in high K+
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | ANTIBODY FAB FRAGMENT HEAVY CHAIN | polymer | 219 | 23411.2 | 1 | Mus musculus | ||
| 2 | B (B) | Monoclonal 11D8 anti-human butyrylcholinesterase (BChE) light chain | polymer | 212 | 23435.7 | 1 | UniProt (A0A0M4KEQ7) Pfam (PF07686) Pfam (PF07654) | Mus musculus (house mouse) | |
| 3 | C (C) | pH-gated potassium channel KcsA | polymer | 102 | 10989.7 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) | Streptomyces lividans | Streptomyces lividans K+ channel,SKC1 |
| 4 | D (C) | DIACYL GLYCEROL | non-polymer | 625.0 | 1 | Chemie (DGA) | |||
| 5 | E, F, G, H, I... (C) | POTASSIUM ION | non-polymer | 39.1 | 6 | Chemie (K) | |||
| 6 | K, L, M (A, B, C) | water | water | 18.0 | 259 | Chemie (HOH) |
Sequence modifications
B: 1 - 212 (UniProt: A0A0M4KEQ7)
C: 22 - 76 (UniProt: P0A334)
C: 77 - 123 (UniProt: P0A334)
| PDB | External Database | Details |
|---|---|---|
| Ser 20 | Arg 40 | conflict |
| Phe 21 | Leu 41 | conflict |
| Ile 29 | Cys 49 | conflict |
| Asp 32 | Ser 52 | conflict |
| His 34 | Tyr 54 | conflict |
| Lys 49 | Met 69 | conflict |
| Ser 54 | Pro 74 | conflict |
| Ile 55 | Phe 75 | conflict |
| Asn 85 | Asp 105 | conflict |
| Arg 93 | Ser 113 | conflict |
| Phe 96 | Trp 116 | conflict |
| Ser 100 | Gly 120 | conflict |
| Lys 103 | Arg 123 | conflict |
C: 77 - 123 (UniProt: P0A334)
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 57836.7 | |
| Non-Polymers* | Number of molecules | 7 |
| Total formula weight | 859.6 | |
| All* | Total formula weight | 58696.3 |
