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

Novel organization of catechol meta-pathway genes in Sphingomonas sp. HV3 pSKY4 plasmid.

Sphingomonas sp. strain HV3 (formerly Pseudomonas sp. HV3), which degrades aromatics and chloroaromatics, harbors a mega-plasmid, pSKY4. A sequenced 4 kb fragment of the plasmid reveals a novel gene organization for catechol meta-pathway genes. The putative meta operon starts with the cmpF gene encoding a 2-hydroxymuconic semialdehyde hydrolase. The gene has a 6 bp overlap with the previously characterized ring-cleavage gene, catechol 2,3-dioxygenase, cmpE. Downstream of cmpE is a 429 bp open reading frame of unknown function. Gene cmpC, encoding a 2-hydroxymuconic semialdehyde dehydrogenase, starts 44 bp further downstream. It has the highest homology to 2-hydroxymuconic semialdehyde dehydrogenases of dmp and xyl pathways and to XylC from the marine oligotroph Cycloclasticus oligotrophus. The gene organization is different from other known meta pathways. This is the first report of organization of plasmid-encoded meta-pathway genes in the genus Sphingomonas.[1]

References

  1. Novel organization of catechol meta-pathway genes in Sphingomonas sp. HV3 pSKY4 plasmid. Yrjälä, K., Paulin, L., Romantschuk, M. FEMS Microbiol. Lett. (1997) [Pubmed]
 
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