1.
Science
; 332(6034): 1149; author reply 1149, 2011 Jun 03.
Artigo
em Inglês
| MEDLINE
| ID: mdl-21622707
RESUMO
Wolfe-Simon et al. (Research Articles, 3 June 2011, p. 1163; published online 2 December 2010) argued that the bacterial strain GFAJ-1 can vary the elemental composition of its biomolecules by substituting arsenic for phosphorus. Although their data show that GFAJ-1 is an extraordinary extremophile, consideration of arsenate redox chemistry undermines the suggestion that arsenate can replace the physiologic functions of phosphate.