Liha töötlemine
rod) region that forms the backbone of the actin and myosin, and troponin T binds very
thick filament and a globular head region that strongly to tropomyosin. The cooperative
extends from the thick filament and interacts action of troponin and tropomyosin in
with actin in the thin filament. The head response to calcium increases in the sarco-
region of myosin also has ATPase activity, plasm regulates the interaction between actin
which is important in the regulation of con- and myosin and thus is a major regulator of
traction. Each myosin molecule contains two contraction. Calcium that is released from the
heavy chains (approximately 220,000 daltons sarcoplasmic reticulum is bound to the tropo-
Chemistry and Biochemistry of Meat 9