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. 2001 Jan 30;98(3):805-8.
doi: 10.1073/pnas.98.3.805.

The universal nature of biochemistry

N R Pace  1
Affiliations

The universal nature of biochemistry

N R Pace. Proc Natl Acad Sci U S A. .
No abstract available

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Figures

Figure 1
Figure 1
Universal phylogenetic tree based on small-subunit rRNA sequences. Sixty-four rRNA sequences representative of all known phylogenetic domains were aligned, and a tree was constructed by using the program fastdnaml, correcting for multiple and back mutations. That tree was modified to the composite one shown by trimming lineages and adjusting branch points to incorporate results of other analyses. Evolutionary distance (sequence difference) between the species shown is read along line segments. The scale bar corresponds to 0.1 changes per nucleotide. [Reproduced with permission from ref. (Copyright 1997, American Association for the Advancement of Science).]
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Comment in

  • Searching for an alien haven in the heavens.
    Coughlin BC. Coughlin BC. Proc Natl Acad Sci U S A. 2001 Jan 30;98(3):796. doi: 10.1073/pnas.98.3.796. Proc Natl Acad Sci U S A. 2001. PMID: 11607762 Free PMC article. No abstract available.

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