SMTL ID : 8xbm.1

Structure of Cx43/GJA1 gap junction intercellular channel in complex with diC8-PIP2

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-12-mer

Ligands

12 x PIO: [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate(Non-covalent)

PIO.1: 7 residues within 4Å: Chain A: Y.98, R.101, K.105 Chain F: A.20, K.146, Y.230, K.234 8 PLIP interactions: 4 interactions with chain F, 4 interactions with chain A Hydrophobic interactions: F:Y.230 Salt bridges: F:K.144, F:K.146, F:K.234, A:R.101, A:K.105, A:K.105 Hydrogen bonds: A:K.105 PIO.2: 7 residues within 4Å: Chain A: A.20, K.146, Y.230, K.234 Chain B: Y.98, R.101, K.105 8 PLIP interactions: 4 interactions with chain A, 4 interactions with chain B Hydrophobic interactions: A:Y.230 Salt bridges: A:K.144, A:K.146, A:K.234, B:R.101, B:K.105, B:K.105 Hydrogen bonds: B:K.105 PIO.3: 7 residues within 4Å: Chain B: A.20, K.146, Y.230, K.234 Chain C: Y.98, R.101, K.105 8 PLIP interactions: 4 interactions with chain B, 4 interactions with chain C Hydrophobic interactions: B:Y.230 Salt bridges: B:K.144, B:K.146, B:K.234, C:R.101, C:K.105, C:K.105 Hydrogen bonds: C:K.105 PIO.4: 7 residues within 4Å: Chain C: A.20, K.146, Y.230, K.234 Chain D: Y.98, R.101, K.105 8 PLIP interactions: 4 interactions with chain C, 4 interactions with chain D Hydrophobic interactions: C:Y.230 Salt bridges: C:K.144, C:K.146, C:K.234, D:R.101, D:K.105, D:K.105 Hydrogen bonds: D:K.105 PIO.5: 7 residues within 4Å: Chain D: A.20, K.146, Y.230, K.234 Chain E: Y.98, R.101, K.105 8 PLIP interactions: 4 interactions with chain D, 4 interactions with chain E Hydrophobic interactions: D:Y.230 Salt bridges: D:K.144, D:K.146, D:K.234, E:R.101, E:K.105, E:K.105 Hydrogen bonds: E:K.105 PIO.6: 7 residues within 4Å: Chain E: A.20, K.146, Y.230, K.234 Chain F: Y.98, R.101, K.105 8 PLIP interactions: 4 interactions with chain E, 4 interactions with chain F Hydrophobic interactions: E:Y.230 Salt bridges: E:K.144, E:K.146, E:K.234, F:R.101, F:K.105, F:K.105 Hydrogen bonds: F:K.105 PIO.7: 7 residues within 4Å: Chain G: Y.98, R.101, K.105 Chain L: A.20, K.146, Y.230, K.234 9 PLIP interactions: 5 interactions with chain G, 4 interactions with chain L Hydrogen bonds: G:Y.98, G:K.105 Salt bridges: G:R.101, G:K.105, G:K.105, L:K.144, L:K.146, L:K.234 Hydrophobic interactions: L:Y.230 PIO.8: 7 residues within 4Å: Chain G: A.20, K.146, Y.230, K.234 Chain H: Y.98, R.101, K.105 9 PLIP interactions: 5 interactions with chain H, 4 interactions with chain G Hydrogen bonds: H:Y.98, H:K.105 Salt bridges: H:R.101, H:K.105, H:K.105, G:K.144, G:K.146, G:K.234 Hydrophobic interactions: G:Y.230 PIO.9: 7 residues within 4Å: Chain H: A.20, K.146, Y.230, K.234 Chain I: Y.98, R.101, K.105 9 PLIP interactions: 4 interactions with chain H, 5 interactions with chain I Hydrophobic interactions: H:Y.230 Salt bridges: H:K.144, H:K.146, H:K.234, I:R.101, I:K.105, I:K.105 Hydrogen bonds: I:Y.98, I:K.105 PIO.10: 7 residues within 4Å: Chain I: A.20, K.146, Y.230, K.234 Chain J: Y.98, R.101, K.105 9 PLIP interactions: 4 interactions with chain I, 5 interactions with chain J Hydrophobic interactions: I:Y.230 Salt bridges: I:K.144, I:K.146, I:K.234, J:R.101, J:K.105, J:K.105 Hydrogen bonds: J:Y.98, J:K.105 PIO.11: 7 residues within 4Å: Chain J: A.20, K.146, Y.230, K.234 Chain K: Y.98, R.101, K.105 9 PLIP interactions: 5 interactions with chain K, 4 interactions with chain J Hydrogen bonds: K:Y.98, K:K.105 Salt bridges: K:R.101, K:K.105, K:K.105, J:K.144, J:K.146, J:K.234 Hydrophobic interactions: J:Y.230 PIO.12: 7 residues within 4Å: Chain K: A.20, K.146, Y.230, K.234 Chain L: Y.98, R.101, K.105 9 PLIP interactions: 4 interactions with chain K, 5 interactions with chain L Hydrophobic interactions: K:Y.230 Salt bridges: K:K.144, K:K.146, K:K.234, L:R.101, L:K.105, L:K.105 Hydrogen bonds: L:Y.98, L:K.105

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lee, H.J. et al., PIP2-dependent conformational changes and stabilization of cytoplasmic loop in Cx43/GJA1 gap junction channel. To Be Published

Release Date

2025-06-11

Peptides

Gap junction alpha-1 protein: ABCDEFGHIJKL

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
E

F
F

G
G

H
H

I
I

J
J

K
K

L
L

Membrane

We predict this structure to be a membrane protein.
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Gap junction alpha-1 protein