1887

Abstract

is a pleomorphic facultative anaerobe and the sole species in the class , which has tentatively been placed in the phylum . In the present study, the complete genome sequence of HC45 was obtained and analysed. The genome size was 3.82 Mbp and the DNA G+C content was 69.73 %. Phylogenetic analyses based on the 30S-50S ribosomal proteins and 23S rRNA gene consistently indicated that is phylogenetically isolated from the other members of the phylum . Ultrastructural observation revealed that possesses a Gram-negative-type cell wall and the capacity to form endospores. Accordingly, the genome has characteristics that are specific to Gram-negative bacteria and contains many genes that are involved in sporulation. On the other hand, several sporulation genes were absent from the genome although they have been regarded as essential for the endospore-forming system of members of the phylum . The B gene of possesses an intein sequence. The genome has a high percentage of GTG start codons and lacks several conserved genes related to cell division.

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2016-03-01
2020-04-07
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