Inositol pentaphosphate in fish red blood cells
β Scribed by Borgese, Thomas A. ;Nagel, Ronald L.
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 314 KB
- Volume
- 205
- Category
- Article
- ISSN
- 0022-104X
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β¦ Synopsis
Abstract
Inositol pentaphosphate (IP5) has long been characteristic of avian erythrocytes. We now report that this compound is also present in the red cells of two species of elasmobranch fishes, Squalus acanthias (spiny dogfish) and Narcacion nobiliana (torpedo ray). The mean concentration of IP5 is 0.36 and 0.24 micromoles per ml of red cells respectively. ATP is the major organic phosphate in both fishes. 2,3βdiphosphoglycerate is absent and GTP levels correspond approximately to the levels of IP5.
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