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. 2005 May 5;435(7038):42.
doi: 10.1038/435042a.

Biochemistry: a cadmium enzyme from a marine diatom

Todd W Lane  1 , Mak A Saito, Graham N George, Ingrid J Pickering, Roger C Prince, François M M Morel
Affiliations

Biochemistry: a cadmium enzyme from a marine diatom

Todd W Lane et al. Nature. .

Abstract

The ocean biota contains a vast reservoir of genomic diversity. Here we present the sequence and preliminary characterization of a protein that is a cadmium-containing carbonic anhydrase from the marine diatom Thalassiosira weissflogii. The existence of a cadmium enzyme in marine phytoplankton may indicate that there is a unique selection pressure for metalloenzymes in the marine environment, and our discovery provides a long-awaited explanation for the nutrient-like behaviour of cadmium in the oceans.

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