Na+ -K+-C1- cotransporter contains

Na+ -K±C1- cotransporter contains ?
a) 5 transmembrane spanning domain
b) 7 transmembrane spanning domain
c) 9 transmembrane spanning domain
d) 12 transmembrane spanning domain
Correct Answer - D
Ans. D . 12 transmembrane spanning domain
Na+ -K±Cl- cotransporter (cation-chloride cotransporter) has 12-
transmembrane spanning domains with glycosylation sites on
extracellular loop between membrane spans 7 and 8.