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Biochem Soc Trans. 2004 Apr;32(Pt 2):168-71.

The hyperthermophilic origin of life revisited.

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  • 1Department of Biology, Howard University, Washington DC 20059, U.S.A. dws@scs.howard.edu

Abstract

We revisit the case for the hyperthermophilic scenario for the origin of life and the last common ancestor. Evidence includes studies of phylogenetic trees, rRNA, G and C content, hyperthermophilic proteins, correlations between maximal temperature tolerances and genetic distances, saline stabilization of DNA/RNA, and the inferred climatic temperatures of the early Earth. Although some doubts remain, the case for hot biogenesis and the last common ancestor has gotten stronger.

PMID:
15046564
[PubMed - indexed for MEDLINE]
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