Activities of cathepsins B, D, H and L in rat heart atrial and ventricular muscle.
Activities of four lysosomal proteolytic enzymes, namely cathepsins B, D, H and L are 1.8 to 2.8 times greater in atria of 360 g rats compared with ventricles. Activities of acid phosphatase and beta-acetylglucosaminidase (both lysosomal enzymes) are not significantly different in atria and ventricles. Catheptic activities thus reflect the greater protein turnover rate in atria.
D000818:Animals; D002401:Cathepsin B; D002402:Cathepsin D; D056655:Cathepsin H; D056668:Cathepsin L; D002403:Cathepsins / Q000378:metabolism*; D003546:Cysteine Endopeptidases; D010450:Endopeptidases; D006325:Heart Atria / Q000201:enzymology*; D006352:Heart Ventricles / Q000201:enzymology*; D051381:Rats
D002403:Cathepsins; D010450:Endopeptidases; D003546:Cysteine Endopeptidases; D002401:Cathepsin B; D056668:Cathepsin L; C534280:Ctsl protein, rat; D056655:Cathepsin H; C534128:Ctsh protein, rat; D002402:Cathepsin D