PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10603985-3 1998 Experiments measuring tension transients in saponin-permeabilized cardiac muscles from genetically engineered mice under a variety of SR calcium loading conditions provide evidence of the functional alterations that can be achieved by manipulation of the degree of PLB inhibition of the calcium pump. sr calcium 134-144 phospholamban Mus musculus 265-268 30806861-10 2018 These results suggest that the abnormal increase in PLN in the ipsilateral fast-twitch fibers may be involved in decreased SERCA activity, SR calcium content, peak calcium transients, and contractile forces of denervated muscles. sr calcium 139-149 phospholamban Mus musculus 52-55