SMTL ID : 7sqw.1

Structure of the KcsA-W67F mutant with the activation gate in the closed conformation

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.21 Å

Oligo State

hetero-1-1-1-mer

Ligands

1 x F09: NONAN-1-OL(Non-covalent)

F09.1: 5 residues within 4Å: Chain A: R.57 Chain C: A.29, W.66, V.70, V.73 3 PLIP interactions: 3 interactions with chain C Hydrophobic interactions: C:A.29, C:V.70, C:V.73

1 x 1EM: (1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL MYRISTATE(Non-covalent)

1EM.2: 3 residues within 4Å: Chain C: L.65, R.68, V.72 2 PLIP interactions: 2 interactions with chain C Hydrophobic interactions: C:V.72 Salt bridges: C:R.68

5 x K: POTASSIUM ION(Non-functional Binders)(Non-covalent)

K.3: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) K.4: 2 residues within 4Å: Chain C: G.56, Y.57 2 PLIP interactions: 2 interactions with chain C Metal complexes: C:G.56, C:Y.57 K.5: 3 residues within 4Å: Chain C: T.54, V.55 Ligands: K.6 2 PLIP interactions: 2 interactions with chain C Metal complexes: C:T.54, C:V.55 K.6: 2 residues within 4Å: Chain C: T.54 Ligands: K.5 1 PLIP interactions: 1 interactions with chain C Metal complexes: C:T.54 K.7: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Coonen, L. et al., The nonconducting W434F mutant adopts upon membrane depolarization an inactivated-like state that differs from wild-type Shaker-IR potassium channels. Sci Adv (2022)

Release Date

2022-10-12

Peptides

Antibody Fragment: A
Antibody Fragment: B
KcsA potassium channel: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

Membrane

We predict this structure to be a membrane protein.
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Antibody Fragment

Antibody Fragment

KcsA potassium channel

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