PDB ID or protein name

4i9w » Potassium channel subfamily K member 4, structure 2

4i9w » Potassium channel subfamily K member 4, structure 2
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Topology in Eukaryotic plasma membrane
Topologyextracellular side
cytoplasmic side
4i9w » Potassium channel subfamily K member 4, structure 2
Hydrophobic Thickness 30.8 ± 1.4 Å
Tilt Angle 6 ± 0°
ΔGtransfer -106.2 kcal/mol
Links to 4i9w PDB Sum, PDB, SCOP, MSD, OCA, MMDB
Topology subunit A (N-terminus cytoplasmic)
Resolution 2.75 Å
Other PDB entries representing this structure 4wfe, 4wff, 4wfg, 4wfh
Number of TM Secondary Structures 8
2 transmembrane subunits
A - Tilt: 21° - Segments: 1( 30- 53), 2( 142- 172), 3( 198- 221), 4( 255- 282)
B - Tilt: 21° - Segments: 1( 30- 50), 2( 140- 173), 3( 195- 218), 4( 255- 280)
Comments on 4i9w » Potassium channel subfamily K member 4, structure 2
The arrangement with respect to membrane is not exactly symmetric because the structure is incomplete (ends of some TM helices are disordered).