DOI: 10.1083/jcb.93.3.883. Localization of Ca2+ + Mg2+-ATPase of the sarcoplasmic reticulum in adult rat papillary muscle.

Localization of Ca2+ + Mg2+-ATPase of the sarcoplasmic reticulum in adult rat papillary muscle.

10.1083/jcb.93.3.883

Crossref journal-article

Rockefeller University Press

The Journal of cell biology (291)

Abstract

Localization of the Ca2+ + Mg2+-ATPase of the sarcoplasmic reticulum in rat papillary muscle was determined by indirect immunofluorescence and immunoferritin labeling of cryostat and ultracryotomy sections, respectively. The Ca2+ + Mg2+-ATPase was found to be rather uniformly distributed in the free sarcoplasmic reticulum membrane but to be absent from both peripheral and interior junctional sarcoplasmic reticulum membrane, transverse tubules, sarcolemma, and mitochondria. This suggests that the Ca2+ + Mg2+-ATPase of the sarcoplasmic reticulum is antigenically unrelated to the Ca2+ + Mg2+-ATPase of the sarcolemma. These results are in agreement with the idea that the sites of interior and peripheral coupling between sarcoplasmic reticulum membrane and transverse tubules and between sarcoplasmic reticulum and sarcolemmal membranes play the same functional role in the excitation-contraction coupling in cardiac muscle.

Bibliography

Jorgensen, A. O., Shen, A. C., Daly, P., & MacLennan, D. H. (1982). Localization of Ca2+ + Mg2+-ATPase of the sarcoplasmic reticulum in adult rat papillary muscle. The Journal of Cell Biology, 93(3), 883â892.

Authors 4

A O Jorgensen (first)
A C Shen (additional)
P Daly (additional)
D H MacLennan (additional)

References 0 Referenced 48

None

Dates

Type	When
Created	21 years, 3 months ago (May 14, 2004, 7:04 p.m.)
Deposited	2 years, 1 month ago (July 24, 2023, 12:52 p.m.)
Indexed	3 months, 1 week ago (May 19, 2025, 8:07 a.m.)
Issued	43 years, 2 months ago (June 1, 1982)
Published	43 years, 2 months ago (June 1, 1982)
Published Online	43 years, 2 months ago (June 1, 1982)
Published Print	43 years, 2 months ago (June 1, 1982)

Funders 0

None

BibTeX

@article{Jorgensen_1982, title={Localization of Ca2+ + Mg2+-ATPase of the sarcoplasmic reticulum in adult rat papillary muscle.}, volume={93}, ISSN={1540-8140}, url={http://dx.doi.org/10.1083/jcb.93.3.883}, DOI={10.1083/jcb.93.3.883}, number={3}, journal={The Journal of cell biology}, publisher={Rockefeller University Press}, author={Jorgensen, A O and Shen, A C and Daly, P and MacLennan, D H}, year={1982}, month=jun, pages={883–892} }

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