PROTEIN SYNTHESIS IN LIVER, MUSCLE AND GILL OF MULLET (MUGIL CEPHALUSL.)IN VIVO
- 1 February 1979
- journal article
- research article
- Published by University of Chicago Press in The Biological Bulletin
- Vol. 156 (1) , 93-102
- https://doi.org/10.2307/1541005
Abstract
1. Protein synthesis in mullet was measured by use of pulse injections of 14C-leucine into the hepatic portal circulation and by 4-hr continuous infusion of 14C-tyrosine into the dorsal aorta. 2. Liver protein synthesis was 37 mg/day per g wet weight of tissue. Plasma proteins accounted for about 25% of total liver protein synthesis. Replacement rate for intrahepatic proteins was 20%/day. Average polypeptide chain synthesis time was 3 min. 3. Gill protein synthesis was comparable to that in liver with a replacement rate of 23%/day. 4. Muscle protein synthetic rate was 0.54%/day, comparable to rates in rabbit and sheep when temperature difference is taken into account. 5. Constant infusion is shown to be a feasible technique for measurement of protein metabolism of fish in vivo.This publication has 3 references indexed in Scilit:
- Temperature dependency of protein synthesis in toadfish liver in vivoComparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1978
- Characterization of leucine transport by toadfish liver in vivoAmerican Journal of Physiology-Legacy Content, 1976
- Protein synthesis and RNA in tissues of the pigAmerican Journal of Physiology-Legacy Content, 1976