Protein
Two-pore potassium channel 3
Organism
Arabidopsis thaliana
Function
Two-pore potassium channel modulating the proton motive force (pmf) necessary to convert photochemical energy into physiological functions. Mediates the potassium efflux from the thylakoid lumen required for the regulation of the transmembrane electrical potential, the enhancement of the pH gradient for ATP synthesis, the regulation of electron flow, and pH-mediated photoprotective responses. Requires calcium for channel activity.
Similarity
Belongs to the two pore domain potassium channel (TC 1.A.1.7) family.
Sequence
MANEGSDPLLQYMISPRLKKPPQLLFPLPEDNEVAIPMPMTPSEFKERLIFGPFSCSPRDSSHFIDSMKQPSPSSSSTAVNNPFSDSSTLDPLLPPPPPQPEPWLSDQTSSHCQGHALHRSKTAPAMAVINDLHHPIRQKDPTETSRSVVRQAFALLVVYLSLGVLIYWLNRDHYVVNQTHPVVDGLYFCIVTMCTIGYGDITPNSVVTKLFSIMFVLVGFGFIDILLSGMVSYVLDLQESYMLDSAKRRDEPEKRRSYIIDVKKGRMRIRLKVALALGVVVLCIAVGVGIMHFIEEIGWLDSFYLSVMSVTTVGYGDRAFKTLPGRLFAAIWLLVSTLAVARAFLYLAEARVDKRNRERAKKVLCETMSVSQFFAADIDNNGCVSKAEYVIYKLKEMEKITDKDILPISKQFDKLDRCSNGKITLLDLLEGGSGD