FUNCTION: 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 PKD...
FUNCTION: 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 does not affect cytoplasmic calcium concentration (PubMed:24336289). The channel formed by PKD1L2 and PKD1L1 in primary cilia regulates sonic hedgehog/SHH signaling and GLI2 transcription (PubMed:24336289). Pore-forming subunit of a channel formed by PKD1L2 and PKD1L3 that contributes to sour taste perception in gustatory cells (PubMed:19812697). The heteromeric channel formed by PKD1L2 and PKD1L3 is activated by low pH, but opens only when the extracellular pH rises again (PubMed:23212381). May play a role in the perception of carbonation taste (By similarity). May play a role in the sensory perception of water, via a mechanism that activates the channel in response to dilution of salivary bicarbonate and changes in salivary pH (By similarity). {ECO:0000250|UniProtKB:A2A259, ECO:0000269|PubMed:10517637, ECO:0000269|PubMed:11959145, ECO:0000269|PubMed:19812697, ECO:0000269|PubMed:23212381, ECO:0000269|PubMed:24336289, ECO:0000269|PubMed:25820328, ECO:0000269|PubMed:27754867, ECO:0000269|PubMed:29425510, ECO:0000269|PubMed:30004384}.
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GO - Biological processes (BP):
cation transport [GO:0006812]; cellular response to acidic pH [GO:0071468]; detection of chemical stimulus involved in sensory perception of sour taste [GO:0001581]; detection of chemical stimulus involved in sensory perception of taste [GO:0050912]; detection of mechanical stimulus [GO:0050982]; in...
cation transport [GO:0006812]; cellular response to acidic pH [GO:0071468]; detection of chemical stimulus involved in sensory perception of sour taste [GO:0001581]; detection of chemical stimulus involved in sensory perception of taste [GO:0050912]; detection of mechanical stimulus [GO:0050982]; inorganic cation transmembrane transport [GO:0098662]; potassium ion transmembrane transport [GO:0071805]; protein homotetramerization [GO:0051289]; response to water [GO:0009415]; sensory perception of sour taste [GO:0050915]; smoothened signaling pathway [GO:0007224]; sodium ion transmembrane transport [GO:0035725]
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GO - Molecular function (MF):
alpha-actinin binding [GO:0051393]; calcium activated cation channel activity [GO:0005227]; calcium-activated potassium channel activity [GO:0015269]; calcium channel activity [GO:0005262]; calcium ion binding [GO:0005509]; cation channel activity [GO:0005261]; cytoskeletal protein binding [GO:00080...
alpha-actinin binding [GO:0051393]; calcium activated cation channel activity [GO:0005227]; calcium-activated potassium channel activity [GO:0015269]; calcium channel activity [GO:0005262]; calcium ion binding [GO:0005509]; cation channel activity [GO:0005261]; cytoskeletal protein binding [GO:0008092]; identical protein binding [GO:0042802]; muscle alpha-actinin binding [GO:0051371]; sodium channel activity [GO:0005272]; sour taste receptor activity [GO:0033040]
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GO - Cellular component (CC):
actin cytoskeleton [GO:0015629]; calcium channel complex [GO:0034704]; cell surface [GO:0009986]; ciliary membrane [GO:0060170]; cytoplasmic vesicle [GO:0031410]; cytosol [GO:0005829]; endoplasmic reticulum [GO:0005783]; integral component of membrane [GO:0016021]; integral component of plasma membr...
actin cytoskeleton [GO:0015629]; calcium channel complex [GO:0034704]; cell surface [GO:0009986]; ciliary membrane [GO:0060170]; cytoplasmic vesicle [GO:0031410]; cytosol [GO:0005829]; endoplasmic reticulum [GO:0005783]; integral component of membrane [GO:0016021]; integral component of plasma membrane [GO:0005887]; intracellular membrane-bounded organelle [GO:0043231]; membrane [GO:0016020]; non-motile cilium [GO:0097730]; plasma membrane [GO:0005886]; receptor complex [GO:0043235]
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