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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Archaebacterial elongation factor Tu insensitive to pulvomycin and kirromycin.

A spermine-dependent, polyphenylalanine-synthesizing cell-free system having an optimum activity at 75-85 degrees C, has been developed from the extremely thermoacidophilic archaebacterium Caldariella acidophila. The C. acidophila system is totally insensitive to the EF-Tu targeted antibiotics pulvomycin (at 40 degrees C) and kirromycin (at 47-72 degrees C) contrary to control systems derived from both mesophilic (Escherichia coli) and thermoacidophilic (Bacillus acidocaldarius) eubacteria. The archaebacterial EF-Tu-equivalent factor is also immunologically unrelated to eubacterial EF-Tu and does not cross react with antibodies against Escherichia coli EF-Tu. The pulvomycin and kirromycin reactions thus provide new phyletic markers for archaebacterial ancestry.[1]


  1. Archaebacterial elongation factor Tu insensitive to pulvomycin and kirromycin. Cammarano, P., Teichner, A., Chinali, G., Londei, P., de Rosa, M., Gambacorta, A., Nicolaus, B. FEBS Lett. (1982) [Pubmed]
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