Aim: The aim of the present study was to define whether cardiac myosin contributes to energy conservation in the heart of hibernating mammals. Methods: Thin cardiac strips were isolated from the left ventricles of active and hibernating grizzly bears; and subjected to loaded Mant-ATP chase assays. X-ray diffraction and proteomics. Main findings: Hibernating grizzly bears displayed an ... https://bbmbatteryes.shop/product-category/130/