Polycystic kidney disease 2-like 1 protein (PKD2L1)

Pore-forming subunit of a heterotetrameric, non- selective cation channel that is permeable to Ca(2+) (PubMed:10517637, PubMed:11959145, PubMed:25820328, PubMed:27754867, PubMed:29425510, PubMed:23212381, PubMed:30004384). Pore-forming subunit of a calcium-permeant ion channel formed by PKD1L2 and PKD1L1 in primary cilia, where it controls cilium calcium concentration, but doesn't affect cytoplasmic calcium concentration (PubMed:24336289).

The channel formed by PKD1L2 and PKD1L1 in primary cilia governs sonic hedgehog/SHH indicating and GLI2 transcription (PubMed:24336289). Pore-forming subunit of a channel formed by PKD1L2 and PKD1L3 that contributes to sour flavor perception in gustatory cells (PubMed:19812697).