There are no amino acid changes between the chicken and human skeletal muscle isoforms, and the most dissimilar actins still share more than 85% sequence identity [1]. We suggest that large discrete internal modes of freedom within the actin filament [2] may account for a significant component...
During host infection, Toxoplasma gondii and related unicellular parasites move using gliding, which differs fundamentally from other known mechanisms of eukaryotic cell motility. Gliding is thought to be powered by a thin layer of flowing filamentous (F)-actin sandwiched between the plasma membrane and...
Answer of the following question. Describe the structure of the sarcomere and explain how it enables muscle contraction according to the sliding - filament model. How does muscle contraction happen? What is the role of actin and myosin in the process?
What form of energy is ATP? Why is collagen found in such abundance in the body, even though actin and myosin make up our muscles? How does ATP and ADP balance catabolic and anabolic reactions? Explain the contraction of striated muscle fibers (Sliding Filament theory). Why does...
Actin depolymerization factors (ADFs) are among the most important actin regulators, affecting the rates of filament turnover in a multifaceted manner. Plasmodium has two ADFs that display low sequence homology with each other and with the higher eukaryotic family members. Here, we show that ADF2...
Explain the process of smooth muscle contraction. How would you explain muscle cell contraction were there no T tubules? Answer of the following question. Describe the structure of the sarcomere and explain how it enables muscle contraction according to the sliding - filame...