F-Protein, a myofibrillar protein interacting with myosin.
F-Protein has an amino acid composition distinctively different from those of myofibriller proteins so far reported to be of similar chain weight: M-protein component II, alpha-actinin, and AMP deaminase. Its molecular weight was estimated to be 121,000 by sedimentation equilibrium in 0.3 M KCl, 10 mM potassium phosphate, pH 6.5. Its binding to myosin was inhibited by C-protein. It reduced the effect of C-protein on the assembly reaction of myosin in vitro.
D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002352:Carrier Proteins; D008970:Molecular Weight; D009124:Muscle Proteins; D009132:Muscles / Q000032:analysis; D009218:Myosins; D011485:Protein Binding; D011506:Proteins; D011817:Rabbits; D000099163:Myosin Binding Protein C
D000596:Amino Acids; D002352:Carrier Proteins; D009124:Muscle Proteins; D009218:Myosins; D011506:Proteins; D000099163:Myosin Binding Protein C