Abstract
Treponema succinifaciens Cwyk and Canale-Parola 1981 is of interest because this strictly anaerobic, apathogenic member of the genus Treponema oxidizes carbohydrates and couples the Embden-Meyerhof pathway via activity of a pyruvate-formate lyase to the production of acetyl-coenzyme A and formate. This feature separates this species from most other anaerobic spirochetes. The genome of T. succinifaciens 6091T is only the second completed and published type strain genome from the genus Treponema in the family Spirochaetaceae. The 2,897,425 bp long genome with one plasmid harbors 2,723 protein-coding and 63 RNA genes and is a part of the Genomic Encyclopedia of Bacteria and Archaea project.
Highlights
Regarding the single hit to sequences from members of the species, the average identity within HSPs was 97.7%, whereas the average coverage by HSPs was 96.1%
Strain 6091T (= DSM 2489 = ATCC 33096 = JCM 13475) is the type strain of Treponema succinifaciens [1,2]
The one yielding the highest score was Treponema socranskii (AY369254), which corresponded to an identity of 89.8% and an HSP coverage of 55.7%. (Note that the Greengenes database uses the INSDC (= EMBL/National Center for Biotechnology Information (NCBI)/DDBJ) annotation, which is not an authoritative source for nomenclature or classification.) The highest-scoring environmental sequence was EU462604 ('Evolution mammals and their gut microbes Sumatran orangutan feces clone orang2 aai66a03'), which showed an identity of 99.6% and an HSP coverage of 91.6%
Summary
Regarding the single hit to sequences from members of the species, the average identity within HSPs was 97.7%, whereas the average coverage by HSPs was 96.1%. (Note that the Greengenes database uses the INSDC (= EMBL/NCBI/DDBJ) annotation, which is not an authoritative source for nomenclature or classification.) The highest-scoring environmental sequence was EU462604 ('Evolution mammals and their gut microbes Sumatran orangutan feces clone orang2 aai66a03'), which showed an identity of 99.6% and an HSP coverage of 91.6%. The most frequently occurring keywords within the labels of environmental samples which yielded hits were 'gut' (11.2%), 'evolut, fece, mammal, microb' (8.2%), 'baboon, hamadrya' (6.3%), 'termit' (5.1%) and 'homogen' (2.2%) (218 hits in total).
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