Complete genome sequence of Finegoldia magna, an anaerobic opportunistic pathogen.

Complete genome sequence of Finegoldia magna, an anaerobic opportunistic pathogen.
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Finegoldia magna(一种厌氧机会致病菌)的完整基因组序列。

DOI:
10.1093/dnares/dsm030
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发表时间:
2008-02-29
期刊:
DNA research : an international journal for rapid publication of reports on genes and genomes
影响因子:
--
通讯作者:
Akimoto S
Akimoto S
中科院分区:
其他
文献类型:
--
作者:
Goto T;Yamashita A;Hirakawa H;Matsutani M;Todo K;Ohshima K;Toh H;Miyamoto K;Kuhara S;Hattori M;Shimizu T;Akimoto S

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大Finegoldia magna(以前的Peptostreenchymagnus)是革兰氏阳性厌氧球菌(GPAC)的成员,是一种定植于人类皮肤和粘膜的细菌。此外,它也被认为是一种机会致病菌,负责各种传染病。在此,我们报道了F.麦格纳ATCC 29328。基因组由1 797 577 bp的环状染色体和189 163 bp的质粒pPEP 1组成。基于基因组信息构建的代谢图谱证实了大部分F. Magna菌株不能发酵除果糖之外的大多数糖,并且具有各种氨肽酶活性。白蛋白结合蛋白(一种已知的抗吞噬作用的毒力因子)的三个同源物在染色体上编码,一个白蛋白结合蛋白同源物在质粒上编码。基因组的一个独特的特征是F. magna编码许多分选酶基因,这些基因的底物可能参与细菌的发病机制,如抗吞噬作用和对宿主细胞的粘附。质粒pPEP 1编码7个分选酶和7个底物基因,而染色体编码4个分选酶和19个底物基因。这些质粒编码的分选酶可能在F.通过丰富细胞壁锚定表面蛋白的种类,
Finegoldia magna (formerly Peptostreptococcus magnus), a member of the Gram-positive anaerobic cocci (GPAC), is a commensal bacterium colonizing human skin and mucous membranes. Moreover, it is also recognized as an opportunistic pathogen responsible for various infectious diseases. Here, we report the complete genome sequence of F. magna ATCC 29328. The genome consists of a 1 797 577 bp circular chromosome and an 189 163 bp plasmid (pPEP1). The metabolic maps constructed based on the genome information confirmed that most F. magna strains cannot ferment most sugars, except fructose, and have various aminopeptidase activities. Three homologs of albumin-binding protein, a known virulence factor useful for antiphagocytosis, are encoded on the chromosome, and one albumin-binding protein homolog is encoded on the plasmid. A unique feature of the genome is that F. magna encodes many sortase genes, of which substrates may be involved in bacterial pathogenesis, such as antiphagocytosis and adherence to the host cell. The plasmid pPEP1 encodes seven sortase and seven substrate genes, whereas the chromosome encodes four sortase and 19 substrate genes. These plasmid-encoded sortases may play important roles in the pathogenesis of F. magna by enriching the variety of cell wall anchored surface proteins.
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