Biochemistry A cadmium enzyme from a marine diatom

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 i...

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Bibliographic Details
Published in:Nature 2005-05, Vol.435 (7038), p.42-42
Main Authors: Saito, Mak A, Lane, Todd W, George, Graham N, Pickering, Ingrid J, Prince, Roger C, Morel, François M. M
Format: Article
Language:English
Subjects:
Animals
Bacillariophyceae
Binding Sites
Cadmium - metabolism
Cadmium - pharmacology
Carbonic Anhydrases - chemistry
Carbonic Anhydrases - genetics
Carbonic Anhydrases - metabolism
Diatoms - drug effects
Diatoms - enzymology
Diatoms - genetics
Gene Expression Regulation, Enzymologic - drug effects
Marine
Marine Biology
Molecular Sequence Data
Phytoplankton - drug effects
Phytoplankton - enzymology
Phytoplankton - genetics
Thalassiosira weissflogii
Water - chemistry
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Summary: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.
ISSN:0028-0836
1476-4687
DOI:10.1038/435042a