title: Contractile properties of chick embryo muscles in development.
abstract: In this paper we report on the observation of two parameters of embryonic muscles which show the functional activity of myofibrillar ATPase activity of embryonic muscles and superprecipitation (SP) of natural actomyosin. Our results indicate that, during the embryonic period, the myofibrillar ATPase activity and the SP of actomyosin significantly increased, the rate of this increase being different for leg and breast muscles.
authors.affiliation: N.K. Koltzov Institute of Developmental Biology, Acad. Sci. USSR, Moscow.
authors.forename: M
authors.initials: M
authors.lastname: Kalamkarova
authors.forename: K
authors.initials: K
authors.lastname: Aleinikova
authors.forename: A
authors.initials: A
authors.lastname: Szöör
authors.forename: I
authors.initials: I
authors.lastname: Kalapos
authors.forename: E
authors.initials: E
authors.lastname: Kofman
mesh_terms: D000818:Animals; D017301:Ca(2+) Mg(2+)-ATPase / Q000096:biosynthesis; D002642:Chick Embryo; D005314:Embryonic and Fetal Development; D009132:Muscles / Q000196:embryology* / Q000201:enzymology*; D009210:Myofibrils / Q000201:enzymology; D009218:Myosins / Q000096:biosynthesis / Q000378:metabolism
chemical_list: D017301:Ca(2+) Mg(2+)-ATPase; D009218:Myosins