PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15276030-3 2004 Phosphorylation of PLN occurs on residues: serine-16 (Ser(16)) and threonine-17 (Thr(17)) in vivo. Threonine 67-76 phospholamban Mus musculus 19-22 15276030-3 2004 Phosphorylation of PLN occurs on residues: serine-16 (Ser(16)) and threonine-17 (Thr(17)) in vivo. Threonine 81-84 phospholamban Mus musculus 19-22 15276030-4 2004 In isolated wild-type cardiomyocytes, we found that increases of stimulation frequency from 0.5 to 5 Hz were associated with increased Thr(17) phosphorylation of PLN and cardiac contractility. Threonine 135-138 phospholamban Mus musculus 162-165 15276030-10 2004 These results indicate that Thr(17) phosphorylation of PLN is the major contributor to frequency-dependent increases of contractile and relaxation parameters in mouse cardiomyocytes, although some increases in these parameters occur even in the absence of PLN phosphorylation. Threonine 28-31 phospholamban Mus musculus 55-58