References & Sources  -  September 19, 1998

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Fish enzyme flexes to adapt to the cold

An enzyme found in Antarctic fish has evolved to accommodate saltwater temperatures below 0° C.

 

References:

Fields, P.A., and G.N. Somero. 1998. Hot spots in cold adaptation: Localized increases in conformational flexibility in lactate dehydrogenase A₄ orthologs of Antarctic notothenioid fishes. Proceedings of the National Academy of Sciences 95(Sept. 15):11476.

 

Further Readings:

Mlot, C. 1997. Evolutionary origins of fish antifreeze. Science News 151(April 19):237.

Wu, C. 1998. Hot-blooded proteins. Science News 153(May 9):296.

______. 1997. Freeze! Insect proteins halt ice growth. Science News 152(Aug. 30):135.

 

Sources:

Peter A. Fields
Stanford University
Hopkins Marine Station
Pacific Grove, CA 93950-3094

From Science News, Vol. 154, No. 12, September 19, 1998, p. 183.
Copyright Ó 1998 by Science Service.

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