Negatively stained sarcoplasmic reticulum from the scallop Placopecten magellanicus presented a variety of crystalline forms, the most common being tubular structures. These were characterized by paired rows of morphological units, spaced at approximately 120 A, running diagonally across the tubules. The orthogonal unit cell (120 X 55 A) contained two units, related by a twofold axis, which probably represented the part of the Ca2+-ATPase molecule projecting from the outer surface of the membrane.
Article| August 01 1983
Crystalline structure of sarcoplasmic reticulum from scallop.
P M Hardwicke
Online Issn: 1540-8140
Print Issn: 0021-9525
J Cell Biol (1983) 97 (2): 557–561.
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L Castellani, P M Hardwicke; Crystalline structure of sarcoplasmic reticulum from scallop.. J Cell Biol 1 August 1983; 97 (2): 557–561. doi: https://doi.org/10.1083/jcb.97.2.557
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