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. 1996 Jul 31;1308(1):7-11.
doi: 10.1016/0167-4781(96)00083-8.

Identification of a gene for a chemoreceptor of the methyl-accepting type in the symbiotic plasmid of Rhizobium leguminosarum bv. viciae UPM791

B Brito  1 , J M Palacios, T Ruiz-Argüeso, J Imperial
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Identification of a gene for a chemoreceptor of the methyl-accepting type in the symbiotic plasmid of Rhizobium leguminosarum bv. viciae UPM791

B Brito et al. Biochim Biophys Acta. .

Abstract

The 4 kb DNA region located immediately upstream of the Rhizobium leguminosarum bv. viciae UPM791 hydrogen structural genes was sequenced and found to encode a chemoreceptor of the methyl-accepting type, the first to be described in a rhizobial symbiotic plasmid. Two additional open reading frames were found. Their protein products showed sequence homology to dehydrogenases and isomerases involved in the metabolism of aromatic compounds. Mutant analysis showed that this region is not required for hydrogenase activity.

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