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Possible Relationship Between Energy Metabolism of Muscle and Oxygen Binding Characteristics of Haemocyanin of Cephalopods

Published online by Cambridge University Press:  11 May 2009

V. A. Zammit
V. A. Zammit
Affiliation:
Department of Biochemistry, Universityof Oxford
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Extract

The pronounced Bohr shift of cephalopod haemocyanin may be related to the formation of octopine, rather than lactate, by cephalopod muscle. Octopine is a much weaker acid than lactate.A highly pH-sensitive oxygen binding curve would permit the efficient unloading of oxygen at the tissues even for a moderately small decrease in venous pH.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 58 , Issue 2 , May 1978 , pp. 421 - 424
Copyright
Copyright © Marine Biological Association of the United Kingdom 1978

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References

REFERENCES

Dauson, R. M. CElliott, D. CElliott, W. H. & Jones, K. 1969. Data for BiochemicalResearch, 2nd edition. Oxford: Oxford University Press.Google Scholar
Ghiretti, F. & Ghiretti-Magaldi, A. 1972. Respiratory proteins of mollusks. In Chemical Zoology, vol. 7 (ed. M. Florkin and B. T. Scheer), pp. 201–217. London: Academic Press.Google Scholar
Johansen, K. & Lenfant, C 1966. Gas exchange in the cephalopod, Octopus dofleini. American Journal of Physiology, 210, 910–918.CrossRefGoogle ScholarPubMed
Prosser, C. L. 1973. Comparative Animal Physiology, 3rd edition. Philadelphia: Saunders.Google Scholar
Redfield, A. C. & Goodkind, R. 1929. The significance of the Bohr effect in the respiration and asphyxiation of the squid, Loligo pealei. Journal of Experimental Biology, 6, 340–349.CrossRefGoogle Scholar
Robin, Y. & Thoai, N. 1961. Metabolisme des derives guanidiles. X. Metabolisme de l'octopine: son role biologique. Biochimica et biophysica acta, 52, 233–240.CrossRefGoogle Scholar
Steen, J. B. 1971. Comparative Physiology of Respiratory Mechanisms, ix, 182 pp. London: Academic Press.Google Scholar
Zammit, V. A. & Newsholme, E. A. 1976. The maximum activities of hexokinase, phosphorylase, phosphofructokinase, glycerol phosphate dehydrogenase, octopine dehydrogenase, phosphoenolypyruvate carboxykinase, nucleoside diphosphate kinase, glutamateoxaloacetate transaminase and arginine kinase in relation to carbohydrate utilisation by muscles of marine invertebrates. Biochemical Journal, 154, 447–462.CrossRefGoogle Scholar