[To assess whether this functional phenomenon was a direct result of altered Ca(2+) affinity or was caused by altered troponin-tropomyosin switching, we assessed Ca(2+) binding of the regulatory site of cardiac troponin C in wild-type or mutant troponin complex and thin filaments using a fluorescent probe (2-[4'-{iodoacetamido}aniline]-naphthalene-6-sulfonate) attached to Cys35 of cardiac troponin C. The Ca(2+)-binding affinity (pCa(50)=6.57+/-0.03) of reconstituted troponin complex was unaffected by all of the HCM and dilated cardiomyopathy troponin mutants tested, with the exception of the troponin I Arg145Gly HCM mutation, which caused an increase (DeltapCa(50)=+0.31+/-0.05).]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine.
Gene-disease associations inferred from text-mining the literature.
DisGeNET evidence - LITERATURE