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論文

Draft genome sequence of ${it Methylobacterium}$ sp. ME121, isolated from soil as a mixed single colony with ${it Kaistia}$ sp. 32K

藤浪 俊*; 武田 喜代子*; 小野寺 威文*; 佐藤 勝也; 清水 哲*; 若林 佑*; 鳴海 一成*; 中村 顕*; 伊藤 政博*

Genome Announcements (Internet), 3(5), p.e01005-15_1 - e01005-15_2, 2015/09

https://doi.org/10.1128/genomeA.01005-15

${it Methylobacterium}$ sp. ME121 was isolated from soil as a mixed single colony with ${it Kaistia}$ sp. 32K during our screening of L-glucose-utilizing microorganisms, and its growth was enhanced by coculture. It was expected that genomic analysis of this bacterium would provide novel information on coculture-dependent growth enhancement. The genomic information of symbiotic bacteria could be of use for studying the molecular mechanisms underlying microbial symbiosis. The draft genome sequence of ${it Methylobacterium}$sp. ME121 is 7,096,979 bp in total length and comprises 197 large contigs ($$>$$ 500 bp) that was deposited at DDBJ/EMBL/GenBank under the accession number BBUX00000000. The draft genome sequence shows that ${it Methylobacterium}$ sp. ME121 has some genes that encode putative methanol/ethanol family PQQ-dependent dehydrogenases involved in methylotrophy. Some unknown factor provided by the coculture may contribute to increase the growth of ${it Methylobacterium}$ sp. ME121.

論文

Draft genome sequence of calcium-dependent ${it Paenibacillus}$ sp. strain TCA20, isolated from a hot spring containing a high concentration of calcium ions

藤浪 俊*; 武田 喜代子*; 小野寺 威文*; 佐藤 勝也; 佐野 元彦*; 高橋 優嘉*; 鳴海 一成*; 伊藤 政博*

Genome Announcements (Internet), 2(5), p.e00866-14_1 - e00866-14_2, 2014/09

https://doi.org/10.1128/genomeA.00866-14

Calcium-dependent ${it Paenibacillus}$ sp. strain TCA20 was isolated from a water sample of a hot spring containing a high concentration of calcium ions. Here, we report the draft genome sequence of this bacterium, which may be the basis for the research of calcium ion homeostasis. The draft genome sequence of ${it Paenibacillus}$ sp. strain TCA20 totals 5,631,463 bp in length and is composed of 33 large contigs ($$>$$ 500 bp) that was deposited at DDBJ/EMBL/Genbank under the accession no. BBIW00000000. The annotation of the draft genome sequence shows that ${it Paenibacillus}$ sp. strain TCA20 has a calcium-specific calcium/proton antiporter, ChaA, and a P-type calcium-transporting ATPase, YloB, was identified as calcium transporters. These transporters may also be important for the growth of ${it Paenibacillus}$ sp. strain TCA20 under the high concentration of calcium ions.

論文

Draft genome sequence of potassium-dependent alkaliphilic ${it Bacillus}$ sp. strain TS-2, isolated from a jumping spider

藤浪 俊*; 武田 喜代子*; 小野寺 威文*; 佐藤 勝也; 佐野 元彦*; 鳴海 一成*; 伊藤 政博*

Genome Announcements (Internet), 2(3), p.e00458-14_1 - e00458-14_2, 2014/05

https://doi.org/10.1128/genomeA.00458-14

The potassium-dependent alkaliphilic ${it Bacillus}$ sp. strain TS-2 was isolated from the mashed extract of a jumping spider, and its draft genome sequence was obtained. Comparative genomic analysis with a previously sequenced sodium-dependent alkaliphilic ${it Bacillus}$ species may reveal potassium-dependent alkaline adaptation mechanisms. The draft genome sequence of ${it Bacillus}$ sp. strain TS-2 was 4,360,646 bp in total length, comprised 58 large contigs ($$>$$ 500 bp) that was deposited at DDBJ/EMBL/Genbank under the accession number BAWL00000000. In the draft genome sequence of ${it Bacillus}$ sp. strain TS-2, two sets of ${it mrp}$ genes, which encode multisubunit secondary cation/proton antiporter-3 family proteins, were annotated. The Mrp complex acts as an Na$$^{+}$$/H$$^{+}$$ antiporter in typical alkaliphilic ${it Bacillus}$ species and plays a critical role in the sodium-dependent alkaline adaptation mechanism.

論文

Draft genome sequence of sodium-independent alkaliphilic ${it Microbacterium}$ sp. strain TS-1

藤浪 俊*; 武田 喜代子; 小野寺 威文*; 佐藤 勝也; 佐野 元彦*; 鳴海 一成*; 伊藤 政博*

Genome Announcements (Internet), 1(6), P. e01043-13, 2013/12

https://doi.org/10.1128/genomeA.01043-13

Alkaliphilic ${it Microbacterium}$ sp. strain TS-1, newly isolated from the jumping spider, showed Na$$^{+}$$-independent growth and motility. Here, we report the draft genome sequence of this bacterium, which may provide beneficial information for Na$$^{+}$$-independent alkaline adaptation mechanisms. The draft genome sequence of ${it Microbacterium}$ sp. strain TS-1 was 3,396,165 bp in total length and comprised 3 large contigs (2,699,404 bp, 691,278 bp, and 5,483 bp) that was deposited at DDBJ/ EMBL/GenBank under the accession number BASQ00000000. The annotation of the draft genome sequence indicated that this bacterium has 3 sets of ${it mrp}$ genes, which encode multisubunit secondary cation/proton antiporter-3 family proteins for pH homeostasis. The annotation also indicated that this bacterium has genes involved in chemotaxis/flagellar components, including one set of ${it mot}$ genes.

口頭

カルシウム含有量が高い弱アルカリ温泉から分離された${it Paenibacillus}$ sp. TCA20株の生理化学的性質とゲノム解析

今澤 陸*; 藤浪 俊*; 高橋 優嘉*; 佐藤 勝也; 鳴海 一成*; 伊藤 政博*

no journal, , 

細胞の生育に大きく関与するCa$$^{2+}$$は、細胞内でその濃度が厳密に調節されている。しかし、原核生物の細胞内Ca$$^{2+}$$濃度の調節機構については、未だ不明な点が多い。本研究では、カルシウム含有量が高い弱アルカリ性温泉地から分離されたCa$$^{2+}$$を生育に要求する${it Paenibacillus}$ sp. TCA20株を用いて、細胞内外のCa$$^{2+}$$サイクルの詳細を理解するために、ゲノム解析を行った。その結果、Ca$$^{2+}$$/H$$^{+}$$アンチポーターをコードする${it chaA}$遺伝子およびP型Ca$$^{2+}$$-ATPaseをコードする${it yloB}$遺伝子のホモログを持つことから、これらの遺伝子群がCa$$^{2+}$$サイクルや生育に重要である可能性が示唆された。

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