SMTL ID : 3um7.1

Crystal structure of the human two pore domain K+ ion channel TRAAK (K2P4.1)

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.31 Å

Oligo State

homo-dimer

Ligands

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

K.1: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) K.2: 9 residues within 4Å: Chain A: G.131, Y.132, G.240, F.241 Chain B: G.131, Y.132, G.240, F.241 Ligands: K.3 No protein-ligand interaction detected (PLIP) K.3: 10 residues within 4Å: Chain A: I.130, G.131, V.239, G.240 Chain B: I.130, G.131, V.239, G.240 Ligands: K.2, K.4 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:I.130, A:G.240 K.4: 10 residues within 4Å: Chain A: T.129, I.130, T.238, V.239 Chain B: T.129, I.130, T.238, V.239 Ligands: K.3, K.5 3 PLIP interactions: 1 interactions with chain B, 2 interactions with chain A Metal complexes: B:V.239, A:I.130, A:V.239 K.5: 5 residues within 4Å: Chain A: T.129, T.238 Chain B: T.129, T.238 Ligands: K.4 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Brohawn, S.G. et al., Crystal structure of the human K2P TRAAK, a lipid- and mechano-sensitive K+ ion channel. Science (2012)

Release Date

2012-02-08

Peptides

Potassium channel subfamily K member 4: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
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Potassium channel subfamily K member 4

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