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Slezak Jan Schulze Wolfgang Stefankova Zuzana Okruhlicova Ludmila Danihel Ludovit Wallukat Gerd 《Molecular and cellular biochemistry》1996,159(1):39-45
By indirect immunofluorescence and preembedding peroxidase-diaminobenzidine technique the localization of polyclonal and monoclonal antibodies against 1, 2 and 3 isoforms of the Na,K-ATPase were studied in rat myocardium.The 1-subunit was identified predominantly on sarcolemma of cultured myocytes, neonatal, as well as adult cardiocytes. The 2 signal was localized around nuclei of cultured cardiocytes, very weak signals were seen in neonatal and more intense signal, were dispersed throughout the adult myocytes. The 3-subunit immunoreactivity was weak and localized in cell processes connecting individual cultured cells, on sarcolemma and intercalated discs of neonatal cells and very weak in adult working myocytes. Cytochemically demonstrated ouabain resistant Na,K-ATPase localized in junctional sarcoplasmic reticulum may represent 1 isoenzyme which is directly involved in modulation of action potential fluxes. 相似文献
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