title: The rate constant for ATP hydrolysis by polymerized actin.
abstract: Polymerized actin hydrolyzes bound ATP in a reaction that depends on the concentration of polymerized ATP-actin, not on the rate of incorporation of ATP-actin into the polymer. The apparent first order rate constant is about 0.07 s-1 at 21 degrees C in 50 mM KCl with 1 mM MgCl2 or CaCl2.
mesh_terms: D000199:Actins / Q000378:metabolism*; D000255:Adenosine Triphosphate / Q000378:metabolism*; D000818:Animals; D002021:Buffers; D002122:Calcium Chloride; D004533:Egtazic Acid; D006868:Hydrolysis; D008274:Magnesium; D015636:Magnesium Chloride; D008433:Mathematics; D011108:Polymers / Q000378:metabolism; D011189:Potassium Chloride; D011817:Rabbits; D013997:Time Factors
chemical_list: D000199:Actins; D002021:Buffers; D011108:Polymers; D015636:Magnesium Chloride; D004533:Egtazic Acid; D011189:Potassium Chloride; D000255:Adenosine Triphosphate; D008274:Magnesium; D002122:Calcium Chloride