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A new role for uric acid: Modulator of haemocyanin oxygen affinity in crustaceans

✍ Scribed by Morris, S. ;Bridges, C. R. ;Grieshaber, M. K.

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
343 KB
Volume
235
Category
Article
ISSN
0022-104X

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✦ Synopsis

Uric acid enhances the oxygen affinity of some crustacean haemocyanins and can account for some of the potentiating effects due to unidentified factors in the haemolymph of the freshwater crayfish A ustropotamobius pallipes. A similar effect can be elicited by an analogous purine, caffeine, which demonstrates a low specificity of haemocyanin for urate. This suggests that other haemolymph purines might produce a cumulative effect on haemocyanin oxygen affinity.

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