Sarcoplasmic reticulum membrane; Multi-pass membrane protein . Sarcoplasmic reticulum . The number of predicted transmembrane domains varies between orthologs, but the 3D-structures show the presence of six transmembrane regions. Both N-terminus and C-terminus are cytoplasmic. .
Tissue Expression
Skeletal muscle and brain (cerebellum and hippocampus).
Signaling_pathway
Organismal Systems >> Endocrine system >> Oxytocin signaling pathway;Human Diseases >> Neurodegenerative disease >> Spinocerebellar ataxia;Human Diseases >> Neurodegenerative disease >> Prion disease;Human Diseases >> Neurodegenerative disease >> Pathways of neurodegeneration - multiple diseases;Environmental Information Processing >> Signal transduction >> Apelin signaling pathway;Environmental Information Processing >> Signal transduction >> Calcium signaling pathway
Research Areas
Function
Calcium channel that mediates the release of Ca(2+) from the sarcoplasmic reticulum into the cytoplasm and thereby plays a key role in triggering muscle contraction following depolarization of T-tubules . Repeated very high-level exercise increases the open probability of the channel and leads to Ca(2+) leaking into the cytoplasm . Can also mediate the release of Ca(2+) from intracellular stores in neurons, and may thereby promote prolonged Ca(2+) signaling in the brain. Required for normal embryonic development of muscle fibers and skeletal muscle. Required for normal heart morphogenesis, skin development and ossification during embryogenesis (By similarity).