Some useful numbers concerning vertebrate skeletal muscle (frog sartorius at 0˚C)

Range Table - link
Organism Frog
Reference Clive. R. Bagshaw, Muscle contraction (Outline Studies in Biology), Springer, 2nd edition (November 30, 1992), p.145 Appendix, table A.1
Primary Source [2] Kushmerick MJ, Davies RE. The chemical energetics of muscle contraction. II. The chemistry, efficiency and power of maximally working sartorius muscles. Appendix. Free energy and enthalpy of atp hydrolysis in the sarcoplasm. Proc R Soc Lond B Biol Sci. 1969 Dec 23 174(1036):315-53 DOI: 10.1098/rspb.1969.0096 [3] Kushmerick MJ, Paul RJ. Aerobic recovery metabolism following a single isometric tetanus in frog sartorius muscle at 0 degrees C. J Physiol. 1976 Jan254(3):693-709 [29] Ferenczi MA, Homsher E, Simmons RM, Trentham DR. Reaction mechanism of the magnesium ion-dependent adenosine triphosphatase of frog muscle myosin and subfragment 1. Biochem J. 1978 Apr 1 171(1):165-75 [47] Huxley AF. Muscular contraction. J Physiol. 1974 Nov243(1):1-43PubMed ID4391323, 1082933, 148277, 4449057
Method Primary source [3] abstract: "Basal and recovery O2 consumption, delatO2, in frog sartorius muscles at 0 degrees C were measured with a polarographic electrode. Reproducible observations were made with the same muscle over many hours." Primary source [29] abstract: "The Mg2+-dependent ATPase (adenosine 5'-triphosphatase) mechanism of myosin and subfragment 1 prepared from frog leg muscle was investigated by transient kinetic technique."
Comments Based on primary sources 2, 3, 29, 47 (rates and velocities are about 5 to 10 times higher for rabbit psoas muscle at 20˚C)
Entered by Uri M
ID 116073