Regulation of expression of photosynthetic genes by the two-component regulatory system of photosynthetic bacteria
Regulation of expression of photosynthetic genes by the two-component regulatory system of photosynthetic bacteria
批准号:
09440265
负责人:
TAKAMIYA Ken-ichiro
金额:
$2.5万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
1997
资助国家:
日本
项目状态:
已结题
起止时间:
1997 至 1999
中文摘要
1. 克隆了球形红杆菌双组分调控系统下游基因spb、orf5、orf318和ahcy2。Spb是荚膜红杆菌中hvrA的同源物,但其功能与Rba不同。其中spb为光抑制因子,hvrA为光激活因子。orf318是一个与细菌中参与脂多糖合成的糖基转移酶RfaI和RfaJ同源的新基因。在好氧条件下,orf5的破坏导致黑暗中生长速率的抑制。在一种好氧光合细菌——反硝化玫瑰杆菌中,存在类似的基因,包括双组分调控基因,这表明这些细菌对光合基因的调控系统本质上是相同的。结果表明双组分调控基因的下游基因可能参与了信号转导途径。
英文摘要
1. Genes downstream of the two-component regulatory system of Rhodobacter sphaeroides were cloned and they were spb, orf 5, orf 318 and ahcY.2. Spb was a homologue of hvrA in Rhodobacter capsulatus but its function was differed from that of Rba. capsulatus in that spb was light-repressor, whereas hvrA was light-activator3. Orf 318 was a novel gene which had homology with RfaI and RfaJ, which are glycosyltransferases involved in the synthesis of lipopolysaccharide in bacteria.4. Disruption of orf 5 caused inhibition of growth rate in the dark under aerobic conditions.5. In an aerobic photosynthetic bacterium, Roseobacter denitrificans, there existed similar genes including two-component regulatory genes, indicating that the regulatory system for photosynthetic genes was essentially the same in these bacteria.6. The results obtained indicate the possible involvement of genes downstream of the two-component regulatory gene in the signal transduction pathway.
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Masuda et al.: "Magnesium insertion by magnesium chelatase in the biosynthsis of zinc-bacteriochlorophyll a in an aerobic acidophilic bacterium acidiphiliun rubrum"J. Biol. Chem.. 274. 33549-33600 (1999)
Masuda 等人:“镁螯合酶在需氧嗜酸细菌 Acidiphiliun rubrum 中锌细菌叶绿素 a 的生物合成中插入镁”J.
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Nishimura et al.: "Photosynthetic regulatory gene cluster in an aerobic photosynthetic backterium, Roseobacter denitrificans"J. Gen. Appl, Microbiol.. 45. 129-134 (1999)
Nishimura 等人:“需氧光合细菌中的光合调节基因簇,脱氮玫瑰杆菌”J.
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Obayashi,T.…,Takamiya,K.: "Properties of ORF5-disrupted and overexpressed Rhodobacter Sphaeroides mutants." Proc.of Xlth International Congress of Phetosynthesis. (in press).
Obayashi, T.…, Takamiya, K.:“ORF5 破坏和过度表达的球形红杆菌突变体的特性。”第十一届国际光合成大会论文集(正在出版)。
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Mizoguchi, H., Masuda, T., Nishimura, K, Shimada, H., Ohta, H., Shioi, Y, and Takamiya, K.: "Nucleotide sequence and transcriptional analysis of the flanking region of the gene(spb) for the trans-acting factor that controls light-mediated expression of th
Mizoguchi, H.、Masuda, T.、Nishimura, K、Shimada, H.、Ohta, H.、Shioi, Y 和 Takamiya, K.:“基因侧翼区域的核苷酸序列和转录分析(spb)
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Nishimura K.,--,Takamiya K.: "Photosynthetic regulatory gene cluster in an aerobic photosynthetic bacterium, Roseobacter denitrificans"J. Gen. Appl. Microbiol.. 45. 129-134 (1999)
Nishimura K.,--,Takamiya K.:“需氧光合细菌,脱氮玫瑰杆菌中的光合调节基因簇”J。
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共 17 条
Mechanism of zinc-insertion into porphyrin ring in acidophilic photosynthetic bacteria
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批准号:12640629
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.24万
-
财政年份:2000
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负责人:TAKAMIYA Ken-ichiro
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依托单位:
Molecular mechanism of blue-light signal transduction in photosynthetic bacteria
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批准号:05454015
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$3.52万
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财政年份:1993
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负责人:TAKAMIYA Ken-ichiro
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依托单位:
Isolation and Comparative Physiological Studies of Aerobic PhotoーSynthetic Bacteria from Tropical Sea Area of Australia
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批准号:01041070
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项目类别:Grant-in-Aid for international Scientific Research
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资助金额:$9.6万
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财政年份:1989
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负责人:TAKAMIYA Ken-ichiro
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依托单位:
Studies on the comparative physiology of the aerobic photosynthetic bacteria
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批准号:60304007
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项目类别:Grant-in-Aid for Co-operative Research (A)
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资助金额:$11.07万
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财政年份:1985
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负责人:TAKAMIYA Ken-ichiro
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依托单位:
海外基金