1. Neurobiology: The acid test for resting potassium channels
David A. Brown 
Current Biology 
Volume 10, Issue 12, Pages R456-R459 (June 2000)
DOI: /S (00)

2. Figure 1
Topology of the pore-forming subunits of the major families of K+ channels. Transmembrane domains are shaded yellow and the pore loops are shaded red. (a) The one pore, six transmembrane domain family includes the Shaker/Shal/Shab/Shaw (Kv1–4), KCNQ, Eag, Erg, Elk and Slo subfamilies of voltage gated channels. The voltage-sensing S4 transmembrane domain is shaded green. (b) The one pore, two transmembrane domain includes the inward rectifier (Kir) channels. (c,d) The two groups of twin-pore channels; note that these do not have a ‘voltage sensor’. TASK belongs to the two-pore, four transmembrane domain group (d).
Current Biology  , R456-R459DOI: ( /S (00) )