Modification of glyceraldehyde-3-phosphate dehydrogenase, EC 1.2.1.12, isolated from rainbow trout during acclimation at 5 or 15 degrees C--I. Changes in the activity of individual muscle isolates as evidence for variable adaptive responses. 1984

M Phelan, and I Gray

The mean Km and Vmax values for G3PDH isolated from the lateral muscle of cold-adapted (5 degrees C) rainbow trout, Salmo gairdneri, were twice those of enzyme from warm-adapted (15 degrees C) trout when assayed at 7 degrees C but not at any other temperature. The entropy of activation of warm enzyme was about 3 times that of cold enzyme. However, enthalpy or free energy of activation among acclimation groups differed less or not at all. Individual G3PDH isolates within either adaptation group differed in kinetic characteristics.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D005987 Glyceraldehyde-3-Phosphate Dehydrogenases Enzymes that catalyze the dehydrogenation of GLYCERALDEHYDE 3-PHOSPHATE. Several types of glyceraldehyde-3-phosphate-dehydrogenase exist including phosphorylating and non-phosphorylating varieties and ones that transfer hydrogen to NADP and ones that transfer hydrogen to NAD. GAPD,Glyceraldehyde-3-Phosphate Dehydrogenase,Glyceraldehydephosphate Dehydrogenase,Phosphoglyceraldehyde Dehydrogenase,Triosephosphate Dehydrogenase,Dehydrogenase, Glyceraldehyde-3-Phosphate,Dehydrogenase, Glyceraldehydephosphate,Dehydrogenase, Phosphoglyceraldehyde,Dehydrogenase, Triosephosphate,Dehydrogenases, Glyceraldehyde-3-Phosphate,Glyceraldehyde 3 Phosphate Dehydrogenase
D000064 Acclimatization Adaptation to a new environment or to a change in the old. Acclimation
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012487 Salmonidae A family of anadromous fish comprising SALMON; TROUT; whitefish; and graylings. They are the most important food and game fishes. Their habitat is the northern Atlantic and Pacific, both marine and inland, and the Great Lakes. (Nelson: Fishes of the World, 1976, p97) Graylings,Thymallus,Whitefish,Salmonids,Grayling,Salmonid
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures
D013816 Thermodynamics A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed) Thermodynamic
D014337 Trout Various fish of the family SALMONIDAE, usually smaller than salmon. They are mostly restricted to cool clear freshwater. Some are anadromous. They are highly regarded for their handsome colors, rich well-flavored flesh, and gameness as an angling fish. The genera Salvelinus, Salmo, and ONCORHYNCHUS have been introduced virtually throughout the world. Chars,Salvelinus,Char

Related Publications

M Phelan, and I Gray
July 1976, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.),
M Phelan, and I Gray
November 1976, Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.),
Copied contents to your clipboard!