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PLoS Genet. 2008 May 30;4(5):e1000087. doi: 10.1371/journal.pgen.1000087.

Complete genome sequence of the complex carbohydrate-degrading marine bacterium, Saccharophagus degradans strain 2-40 T.

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  • 1Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA. RWeiner@umd.edu

Abstract

The marine bacterium Saccharophagus degradans strain 2-40 (Sde 2-40) is emerging as a vanguard of a recently discovered group of marine and estuarine bacteria that recycles complex polysaccharides. We report its complete genome sequence, analysis of which identifies an unusually large number of enzymes that degrade >10 complex polysaccharides. Not only is this an extraordinary range of catabolic capability, many of the enzymes exhibit unusual architecture including novel combinations of catalytic and substrate-binding modules. We hypothesize that many of these features are adaptations that facilitate depolymerization of complex polysaccharides in the marine environment. This is the first sequenced genome of a marine bacterium that can degrade plant cell walls, an important component of the carbon cycle that is not well-characterized in the marine environment.

PMID:
18516288
[PubMed - indexed for MEDLINE]
PMCID:
PMC2386152
Free PMC Article
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