The F type of this protein has a distinct polarity and contains a negative end which is capped by tropomodulin and a positive end that binds to the Z disk.
E. coli contains a protein called MreB which is an analogue to this protein. Phalloidin is a toxin found in death cap mushrooms that interferes with this protein. Vinculin is a linkage protein that binds to this protein. Formins facilitate processive assembly of these proteins at their barbed ends and long chains that consist of this protein reach a steady state condition known as treadmilling. The F type of this protein has a distinct polarity and contains a negative end which is capped by tropomodulin and a positive end that binds to the Z disk. According to the sliding filament theory, the binding of ATP to myosin causes the myosin to release its grip on this protein which is found in the thin filament of muscles. For 10 points, name this protein found in the microfilaments of the cytoskeleton.
E. coli contains a protein called MreB which is an analogue to this protein.
actin