- Coordinates
- PDB Format
- Method
- ELECTRON MICROSCOPY 3.10 Å
- Oligo State
- hetero-4-4-mer
- Ligands
- 4 x 01: N-(2,1,3-benzoxadiazol-4-yl)-4-(trifluoromethyl)benzamide
01.1: 13 residues within 4Å:- Chain A: F.208, S.209, I.210, L.212, W.213, A.216, I.243, S.244, F.247, T.269, M.272, C.276
- Chain F: I.271
10 PLIP interactions:10 interactions with chain A- Hydrophobic interactions: A:I.210, A:L.212, A:W.213, A:A.216, A:I.243, A:F.247, A:T.269
- pi-Stacking: A:W.213, A:W.213, A:F.247
01.20: 13 residues within 4Å:- Chain F: F.208, S.209, I.210, L.212, W.213, A.216, I.243, S.244, F.247, T.269, M.272, C.276
- Chain G: I.271
10 PLIP interactions:10 interactions with chain F- Hydrophobic interactions: F:I.210, F:L.212, F:W.213, F:A.216, F:I.243, F:F.247, F:T.269
- pi-Stacking: F:W.213, F:W.213, F:F.247
01.21: 13 residues within 4Å:- Chain G: F.208, S.209, I.210, L.212, W.213, A.216, I.243, S.244, F.247, T.269, M.272, C.276
- Chain H: I.271
10 PLIP interactions:10 interactions with chain G- Hydrophobic interactions: G:I.210, G:L.212, G:W.213, G:A.216, G:I.243, G:F.247, G:T.269
- pi-Stacking: G:W.213, G:W.213, G:F.247
01.22: 13 residues within 4Å:- Chain A: I.271
- Chain H: F.208, S.209, I.210, L.212, W.213, A.216, I.243, S.244, F.247, T.269, M.272, C.276
10 PLIP interactions:10 interactions with chain H- Hydrophobic interactions: H:I.210, H:L.212, H:W.213, H:A.216, H:I.243, H:F.247, H:T.269
- pi-Stacking: H:W.213, H:W.213, H:F.247
- 2 x K: POTASSIUM ION(Non-covalent)
- 16 x CA: CALCIUM ION(Non-covalent)
CA.4: 5 residues within 4Å:- Chain B: D.21, D.23, D.25, T.27, E.32
5 PLIP interactions:5 interactions with chain B- Metal complexes: B:D.21, B:D.23, B:D.25, B:T.27, B:E.32
CA.5: 5 residues within 4Å:- Chain B: D.57, D.59, N.61, T.63, E.68
4 PLIP interactions:4 interactions with chain B- Metal complexes: B:D.57, B:D.59, B:D.59, B:T.63
CA.6: 5 residues within 4Å:- Chain B: D.96, N.98, Y.100, I.101, E.105
4 PLIP interactions:4 interactions with chain B- Metal complexes: B:D.96, B:D.96, B:Y.100, B:E.105
CA.7: 6 residues within 4Å:- Chain B: D.132, D.134, Q.136, V.137, N.138, E.141
3 PLIP interactions:3 interactions with chain B- Metal complexes: B:D.134, B:Q.136, B:E.141
CA.8: 6 residues within 4Å:- Chain C: D.21, D.23, D.25, T.27, T.29, E.32
5 PLIP interactions:5 interactions with chain C- Metal complexes: C:D.21, C:D.23, C:D.25, C:T.27, C:E.32
CA.9: 6 residues within 4Å:- Chain C: D.57, D.59, N.61, T.63, D.65, E.68
5 PLIP interactions:5 interactions with chain C- Metal complexes: C:D.59, C:T.63, C:D.65, C:E.68, C:E.68
CA.10: 5 residues within 4Å:- Chain C: D.96, N.98, Y.100, I.101, E.105
4 PLIP interactions:4 interactions with chain C- Metal complexes: C:D.96, C:D.96, C:Y.100, C:E.105
CA.11: 6 residues within 4Å:- Chain C: D.132, D.134, Q.136, V.137, N.138, E.141
4 PLIP interactions:4 interactions with chain C- Metal complexes: C:D.134, C:D.134, C:Q.136, C:E.141
CA.12: 6 residues within 4Å:- Chain D: D.21, D.23, D.25, T.27, T.29, E.32
5 PLIP interactions:5 interactions with chain D- Metal complexes: D:D.21, D:D.23, D:D.25, D:T.27, D:E.32
CA.13: 6 residues within 4Å:- Chain D: D.57, D.59, N.61, T.63, D.65, E.68
4 PLIP interactions:4 interactions with chain D- Metal complexes: D:D.59, D:T.63, D:D.65, D:E.68
CA.14: 7 residues within 4Å:- Chain D: D.94, D.96, N.98, Y.100, I.101, S.102, E.105
4 PLIP interactions:4 interactions with chain D- Metal complexes: D:D.96, D:D.96, D:Y.100, D:E.105
CA.15: 6 residues within 4Å:- Chain D: D.132, D.134, Q.136, V.137, N.138, E.141
4 PLIP interactions:4 interactions with chain D- Metal complexes: D:D.134, D:D.134, D:Q.136, D:E.141
CA.16: 6 residues within 4Å:- Chain E: D.21, D.23, D.25, T.27, T.29, E.32
5 PLIP interactions:5 interactions with chain E- Metal complexes: E:D.21, E:D.23, E:D.25, E:T.27, E:E.32
CA.17: 6 residues within 4Å:- Chain E: D.57, D.59, N.61, T.63, D.65, E.68
3 PLIP interactions:3 interactions with chain E- Metal complexes: E:D.59, E:T.63, E:E.68
CA.18: 5 residues within 4Å:- Chain E: D.96, N.98, Y.100, I.101, E.105
4 PLIP interactions:4 interactions with chain E- Metal complexes: E:D.96, E:D.96, E:Y.100, E:E.105
CA.19: 6 residues within 4Å:- Chain E: D.132, D.134, Q.136, V.137, N.138, E.141
4 PLIP interactions:4 interactions with chain E- Metal complexes: E:D.134, E:D.134, E:Q.136, E:E.141
- Links
- RCSB PDBe PDBe-KB PDBj PDBsum CATH PLIP
- Citation
- Cassell, S.J. et al., Mechanism of SK2 channel gating and its modulation by the bee toxin apamin and small molecules. To Be Published
- Release Date
- 2025-07-09
- Peptides
- Intermediate conductance calcium-activated potassium channel protein 4,Small conductance calcium-activated potassium channel protein 2 chimera: AFGH
Calmodulin-1: BCDE - SMTL:PDB
- SMTL Chain Id:
PDB Chain Id:A
AF
BG
CH
DB
EC
FD
GE
H - Membrane
-
We predict this structure to be a membrane protein.
SMTL ID : 9o5o.1
Cryo-EM structure of the human SK2-4 chimera/calmodulin channel complex bound to a small molecule activator
Intermediate conductance calcium-activated potassium channel protein 4,Small conductance calcium-activated potassium channel protein 2 chimera
Toggle Identical (AFGH)Calmodulin-1
Toggle Identical (BCDE)Related Entries With Identical Sequence
1iq5.1 | 1lvc.1 | 1lvc.2 | 1lvc.3 | 1wrz.1 | 2bki.1 | 2r28.1 | 2v01.1 | 2v02.1 | 2w73.1 | 2w73.2 | 2y4v.1 | 3hr4.1 | 3hr4.2 | 3hr4.3 | 3hr4.4 | 3j41.1 | 3oxq.1 | 3oxq.2 | 3sjq.1 | 3sui.1 | 4bw7.1 | 4bw7.2 | 4bw7.3 | 4bw8.1 | 4bw8.2 | 4byf.1 | 4byf.2 | 4dck.1 | 4dck.2 more...less...4g27.1 | 4g28.1 | 4j9y.1 | 4j9z.1 | 4jpz.1 | 4jpz.2 | 4jq0.1 | 4l79.1 | 4ovn.1 | 4ovn.2 | 4ovn.3 | 4ovn.4 | 4ovn.5 | 4q5u.1 | 4umo.1 | 4v0c.1 | 4zlk.1 | 5j03.1 | 5jqa.1 | 5k7l.1 | 5k7l.2 | 5k7l.3 | 5k8q.1 | 5nin.1 | 5nin.2 | 5v02.1 | 5v03.1 | 5v7x.1 | 5vms.1 | 5vms.2 | 5vms.3 | 6b8l.1 | 6b8l.2 | 6b8l.3 | 6b8l.4 | 6b8m.1 | 6b8m.2 | 6b8m.3 | 6b8m.4 | 6b8n.1 | 6b8n.2 | 6b8n.3 | 6b8n.4 | 6b8p.1 | 6b8p.2 | 6b8p.3 | 6b8p.4 | 6b8q.1 | 6b8q.2 | 6b8q.3 | 6b8q.4 | 6cnm.1 | 6cnn.1 | 6cno.1 | 6dmw.1 | 6e2f.1 | 6e2g.1 | 6feg.1 | 6feh.1 | 6ji8.1 | 6jiu.1 | 6jiy.1 | 6jrs.1 | 6jv2.1 | 6k4k.1 | 6k4k.2 | 6k4l.1 | 6k4l.2 | 6k4r.1 | 6k4r.2 | 6mba.1 | 6mc9.1 | 6mud.1 | 6n5w.1 | 6paw.1 | 6paw.2 | 6paw.3 | 6paw.4 | 6pbx.1 | 6pby.1 | 6s5t.1 | 6sz5.1 | 6uzz.1 | 6v00.1 | 6v01.1 | 6xxf.1 | 6y4o.1 | 7b1g.1 | 7bf1.1 | 7bf2.1 | 7byl.1 | 7bym.1 | 7byn.1 | 7cr3.1 | 7cr4.1 | 7cr7.1 | 7kl5.1 | 7sx3.1 | 7sx4.1 | 7tci.1 | 7tcp.1 | 7u9t.1 | 7ua3.1 | 7ua4.1 | 7vnp.1 | 7vnq.1 | 7vnr.1 | 7wji.1 | 7wr4.1 | 7wr5.1 | 7xn4.1 | 7xn5.1 | 7xn6.1 | 8ahs.1 | 8bx7.1 | 8dgh.1 | 8dgk.1 | 8ijk.1 | 8j07.736 | 8jfk.1 | 8sik.1 | 8sim.1 | 8sin.1 | 8uxl.1 | 8uxm.1 | 8w41.1 | 8w4u.1 | 8x43.1 | 8xo1.1 | 8xya.1 | 8xyb.1 | 9cui.1 | 9cuk.1 | 9d9z.1 | 9ijj.333 | 9ijj.378 | 9ijj.379 | 9ijj.380 | 9ijj.385 | 9ijj.386 | 9ijj.387 | 9ixz.1 | 9j38.1 | 9nwe.1 | 9o48.1 | 9o51.1 | 9o52.1 | 9o53.1