Quantitative analysis of myofilament protein phosphorylation in small cardiac biopsies.
Phosphorylation of cardiac myofilament proteins represents one of the main post-translational mechanisms that regulate cardiac pump function. Human studies are often limited by the amount of available tissue as biopsies taken during cardiac catheterization weigh only 1 mg (dry weight). Similarly, investigation of time- (or dose-) dependent changes in protein phosphorylation in animal studies is often hampered by tissue availability. The present study describes quantitative analysis of phosphorylation status of multiple myofilament proteins by 2-DE and Pro-Q® Diamond stained gradient gels using minor amounts (˜0.5 mg dry weight) of human and pig cardiac tissue.
Laboratory for Physiology, Institute for Cardiovascular Research, VU University Medical Center, Amsterdam, The Netherlands.
Ruud
R
Zaremba
Daphne
D
Merkus
Nazha
N
Hamdani
Jos M J
JM
Lamers
Walter J
WJ
Paulus
Cris
C
Dos Remedios
Dirk J
DJ
Duncker
Ger J M
GJ
Stienen
Jolanda
J
van der Velden