Organism
Rattus norvegicus
Function
Junctophilins contribute to the formation of junctional membrane complexes (JMCs) which link the plasma membrane with the endoplasmic or sarcoplasmic reticulum in excitable cells. Provides a structural foundation for functional cross-talk between the cell surface and intracellular calcium release channels. JPH4 is brain-specific and appears to have an active role in certain neurons involved in motor coordination and memory (By similarity).
Similarity
Belongs to the junctophilin family.
Sequence
MHVPLGRKFDFDDGGCYVGGWEAGRAHGYGVCTGPGAQGEYSGCWAHGFESLGVFTGPGGHSYQGHWQQGKREGLGVERKSRWTYRGEWLGGLKGRSGVWESVSGLRYAGLWKDGFQDGYGTETYSDGGTYQGQWQAGKRHGYGVRQSVPYHQAALLRSPRRTSLDSGHSDPPTPPPPLPLPGDEGGSPASGSRGGFVLAGPGDADGASSRKRTPAAGGFFRRSLLLSGLRAGGRRSSLGSKRGSLRSEVSSEVGSTGPPGSEASGPPIPAPPALIEGSATEVYAGEWRADRRSGYGVSQRSNGLRYEGEWLGNRRHGYGRTTRPDGSREEGKYKRNRLVHGGRVRSLLPLALRRGKVKEKVDRAVEGARRAVSAARQRQEIAAARAADALLKAVAASSVAEKAVEAARMAKLIAQDLQPMLEAPGRRPRQDSGGSDTEPLDEDSPGVYENGLTPSEGSPELPSSPASSHQPWRAPPCRSPLPPGGNWGPFSSPKAWPEEWGGPGEQAEELAGYEAEDEAGMQGPGPRDGSPLLGGCSDSSGSLREEEGEDEESLPQLRAPGGSESEPVTTPVLRGLSSRGPDAGCLTEEFEEPAATERPAQPGAANPLVVGAVALLDLSLAFLFSQLLT