5dqq

Structural highlights

Function

[TPC1_ARATH] Functions as a voltage-gated inward-rectifying Ca(2+) channel (VDCC) across the vacuole membrane. Is one of the essential components of the slow vacuolar (SV) channel. Acts as the major ROS-responsive Ca(2+) channel and is the possible target of Al-dependent inhibition. Involved in the regulation of germination and stomatal movement.^{[1] [2]}

References

1. ↑ Kawano T, Kadono T, Fumoto K, Lapeyrie F, Kuse M, Isobe M, Furuichi T, Muto S. Aluminum as a specific inhibitor of plant TPC1 Ca2+ channels. Biochem Biophys Res Commun. 2004 Nov 5;324(1):40-5. PMID:15464979 doi:http://dx.doi.org/S0006-291X(04)02051-0
2. ↑ Peiter E, Maathuis FJ, Mills LN, Knight H, Pelloux J, Hetherington AM, Sanders D. The vacuolar Ca2+-activated channel TPC1 regulates germination and stomatal movement. Nature. 2005 Mar 17;434(7031):404-8. PMID:15772667 doi:http://dx.doi.org/nature03381