Abstract
Hunter and Dauphinee1 demonstrated the presence of arginase in the voluntary muscle of the dogfish (Squalus sucklii) and also possibly in the muscle of the herring. In the course of another investigation, it has now been observed that this is not true of other elasmobranchs, since no arginase activity was found in the skeletal muscle of the common skate (Raja batis), thornback skate (R. clavata) or cuckoo ray (R. circularis) using the conditions of determination of Van Slyke and Archibald2 with the colorimetric procedure of Engel and Engel3. Activity was, however, observed in both the ordinary ‘white’ skeletal muscle (0.3 arginase units2/mgm. extract nitrogen) and ‘red’ lateral-band muscle (0.75 arginase units/mgm. extract nitrogen) of the lesser-spotted dogfish (Scyliorhinus caniculus) (cf. the observations of Matsuura et al. 4 on several non-elasmobranch species of fish).
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References
Hunter, A., and Dauphinee, J. A., Proc. Roy. Soc., B, 97, 227 (1924).
Van Slyke, D. D., and Archibald, R. M., J. Biol. Chem., 165, 293 (1946).
Engel, M. G., and Engel, F. L., J. Biol. Chem., 167, 535 (1946)
Matsuura, F., Baba, H. J., and Mori, T., Bull. Jap. Soc. Sci. Fish., 19, 893 (1953).
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CONNELL, J. Arginase in Elasmobranch Muscle. Nature 175, 562 (1955). https://doi.org/10.1038/175562a0
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DOI: https://doi.org/10.1038/175562a0
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