1.
Tokushima J Exp Med
; 32(1-2): 1-8, 1985 Jun.
Article
in English
| MEDLINE
| ID: mdl-2937178
2.
FEBS Lett
; 178(2): 209-12, 1984 Dec 10.
Article
in English
| MEDLINE
| ID: mdl-6239791
ABSTRACT
The ATPase activity, light chains and isoenzymes of myosin from specialized myocardial tissue (the A-V node, bundle of His, and right and left bundle branches) of bovine heart were compared with those of atrial and ventricular myosins. The order of Ca2+-activated ATPase activity was atrial greater than specialized myocardial tissue greater than ventricular myosin. SDS-polyacrylamide gel electrophoresis showed that myosin from the specialized myocardial tissue contained the light chains of both atrial and ventricular myosins. On the other hand, the specialized myocardial tissue contained one V3 isomyosin and showed no difference from ventricular myocardial tissue on pyrophosphate gel.