Der Myosinkopf befindet sich dann in 90 Grad Stellung.
Erst durch einströmendes Calcium, das an die Regulationsproteine andockt, wird die Bindungsstelle am Aktinfilament frei gelegt.
Der Myosinkopf dockt an diese an, ändert seine Konformation und knickt gelenkartig ab, wobei er das Aktin mit sich zieht.
www.mpi-dortmund.mpg.deAt this point, the myosin head is at a 90-degree position.
Only after an influx of calcium, which docks onto the regulating proteins, is the binding site on the actin filament exposed.
The myosin head docks onto this site, changes its conformation and bends in an articulated manner, thereby pulling the actin along with it.
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