title: [Phylogeny of beta-xylanases from Planctomycetes].
abstract: Here, we present the results of a computational analysis of a group of hypothetical GH10 endo-beta-xylanases from the Planctomycetes, a bacterial phylum with poorly characterized functional capabilities. These proteins are encoded in all analyzed genomes of heterotrophic Planctomycetes and form a phylogenetically distinct and tight cluster. In addition, we determined nucleotide sequences for endo-beta-xylanase genes from five strains of Isosphaera-Singulisphaera group of the Planctomycetes. The trees constructed for the 16S rRNA genes and the inferred amino acid sequences of endo-beta-xylanases were highly congruent, thus suggesting the vertical transfer of endo-beta-xylanase genes and their functional importance in Planctomycetes.
authors.forename: D G
authors.initials: DG
authors.lastname: Naumoff
authors.forename: A A
authors.initials: AA
authors.lastname: Ivanova
authors.forename: S N
authors.initials: SN
authors.lastname: Dedysh
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics*; D043364:Endo-1,4-beta Xylanases / Q000235:genetics*; D005798:Genes, Bacterial; D010802:Phylogeny; D061328:Planctomycetales / Q000201:enzymology / Q000235:genetics*; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D012336:RNA, Ribosomal, 16S; D043364:Endo-1,4-beta Xylanases