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首页> 外文会议>International Congress on Photosynthesis >Characterization of PSII-I or PSII-K protein-depleted Photosystem II from Thermosynechococcus elongatus strain BP-1. PSII-I protein plays an essential role in dimerization of Photosystem II
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Characterization of PSII-I or PSII-K protein-depleted Photosystem II from Thermosynechococcus elongatus strain BP-1. PSII-I protein plays an essential role in dimerization of Photosystem II

机译：来自Thermosynechococcus菌株BP-1的PSII-1或PSII-K蛋白耗尽光系统II的表征。 psii-i蛋白在光照二分之二中起重要作用

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The PSII complex within the thylakoid membrane catalyzes the light-driven reduction of plastoquinone with electrons from water. Although this complex consists of over 20 polypeptides, it has been possible to isolate a reaction center complex capableof performing in vitro the primary electron transfer reactions of PSII (Nanba and Satoh 1987). PSII-I protein and PSII-K protein are small membrane-spanning proteins. PSII-I protein is associated with the PSII reaction center complex (Ikeuchi and Inoue1988a) and PSII-K protein is associated with the PSII core complex (Ikeuchi and Inoue 1989). They areuniversally found in cyanobacteria as well as green plants (Ikeuchi et al 1989). Gene disruption analysis of psbI and psbK in the mesophilic cyanobacterium Synechocystis sp. PCC 6803 and the green alga Chlamydomonas reinhardtii showed that these proteinsplay role in stabilization of the PSII complex or in optimization of the PSII activity (Ikeuchi et al 1991, Takahashi et al 1994, Ikeuchi et al 1995, Kunstner et al 1995). However, detailed biochemical analysis of the mutant PSII has not yet been carried out because PSII of theseorganisms was not stable enough for isolation of the active complex.
机译：囊体膜内的PSII复合物催化塑性醌的光驱动减少与水的电子。虽然该综合体由超过20个多肽组成，但是可以将能够在体外进行PSII的初级电子转移反应的反应中心复合物分离出来（NanBa和Satoh 1987）。 PSII-I蛋白和PSII-K蛋白是小膜跨越蛋白质。 PSII-I蛋白与PSII反应中心复合物（Ikeuchi和Inoue1988A）相关，PSII-K蛋白与PSII核心复合物（Ikeuchi和1989年内）相关。他们在蓝藻和绿色植物中发现了它们（Ikeuchi等，1989）。嗜苯二苯杆菌综合症SP中PSBI和PSBK的基因破坏分析。 PCC 6803和Green Alga Chlamydomonas Reinhardtii表明，这些蛋白质蛋白蛋白在稳定Psii复合体或优化Psii活动中的作用（Ikeuchi等1991，Takahashi等，Ikeuchi等1995，Kunstner等1995）。然而，尚未进行突变体PSII的详细生化分析，因为这些人的PSII不足够稳定以分离活性复合物。

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