abstract:A homotetramer is a protein complex made up of four identical subunits which are associated but not covalently bound. A heterotetramer is a 4-subunit complex where one or more subunits differ.
There areevidencesthatchannel is constructed by homotetrameror hereotetramer, GIRK1 -GIRK4 subtype express in different locus of central nervous system (CNS) of animals.