HEADER MEMBRANE PROTEIN 31-DEC-69 6FG3 TITLE Structure of Ryanodine receptor 1 in nanodiscs in the presence of TITLE 2 calcium, ATP and ryanodine COMPND MOL_ID: 1; COMPND 2 MOLECULE: Ryanodine receptor 1; COMPND 3 CHAIN: A, B, C, D; COMPND 4 Poly Unk stretches correspond to polypeptide regions where the COMPND 5 OTHER_DETAILS: register is not assigned.;