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

Cloning and sequencing of a chromosomal fragment from Clostridium acetobutylicum strain ABKn8 conferring chemical-damaging agents and UV resistance to E. coli recA strains.

A 3.3-kb DNA fragment of Clostridium acetobutylicum conferred methyl methane sulfonate (MMS), mitomycin C (MC), and UV resistance to recA strains of E. coli when cloned on the pUC19 plasmid. Analysis of the nucleotide sequence of the total insert and results of in vitro transcription-translation experiments showed that the insert directed the synthesis of three polypeptides referred to as ORFa, ORFb, and ORFc of 23.6, 15.3, and 21 kDa, respectively. None of the polypeptides presented a relationship with the RecA protein of E. coli or products of genes involved in the SOS response. The deduced amino acid sequence of ORFb and ORFc are highly homologous to those deduced from two genes specifying resistance to tellurium salts present on plasmid pMER610 harbored by Alcaligenes sp.strains and to an AMP-binding protein (CABP1) found in Dictyostelium discoideum. The existence of these homologous proteins suggests that they may perform a similar key function in the three unrelated organisms.[1]

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