SMTL ID : 4i9w.1

Human two pore domain K+ channel TRAAK (K2P4.1) - Fab complex structure

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.75 Å

Oligo State

hetero-2-2-2-mer

Ligands

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

K.1: 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.2, K.6 5 PLIP interactions: 3 interactions with chain B, 2 interactions with chain A Metal complexes: B:I.130, B:T.238, B:V.239, A:T.238, A:V.239 K.2: 5 residues within 4Å: Chain A: T.129, T.238 Chain B: T.129, T.238 Ligands: K.1 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:T.129, B:T.238, A:T.129, A:T.238 K.4: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) K.5: 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.6 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Metal complexes: B:Y.132, B:F.241, A:Y.132, A:G.240, A:F.241 K.6: 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.1, K.5 5 PLIP interactions: 2 interactions with chain A, 3 interactions with chain B Metal complexes: A:G.131, A:V.239, B:I.130, B:G.131, B:G.240

2 x CA: CALCIUM ION(Non-covalent)

CA.3: 4 residues within 4Å: Chain A: S.112, D.115, S.118, D.249 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:S.112, A:D.115, A:D.115, A:S.118, A:D.249 CA.7: 2 residues within 4Å: Chain F: E.10, K.19 3 PLIP interactions: 3 interactions with chain F Metal complexes: F:E.10, F:E.10, F:K.19

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Brohawn, S.G. et al., Domain-swapped chain connectivity and gated membrane access in a Fab-mediated crystal of the human TRAAK K+ channel. Proc.Natl.Acad.Sci.USA (2013)

Release Date

2013-01-23

Peptides

Potassium channel subfamily K member 4: AB
ANTIBODY FAB FRAGMENT LIGHT CHAIN: CE
ANTIBODY FAB FRAGMENT HEAVY CHAIN: DF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
D

E
F

D
E

F
G

Membrane

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

ANTIBODY FAB FRAGMENT LIGHT CHAIN

ANTIBODY FAB FRAGMENT HEAVY CHAIN

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