Involvement of an FtsH homologue in the assembly of functional photosystem I in the cyanobacterium Synechocystis sp. PCC 6803
作者： Nicholas H Mann , Natalia Novac , Conrad W Mullineaux , Julie Newman , Shaun Bailey
DOI: 10.1016/S0014-5793(00)01871-8
关键词: Insertional mutagenesis 、 Phycobilisome 、 Photosystem II 、 Biology 、 Biochemistry 、 Synechocystis 、 Photosystem I 、 Mutagenesis 、 Biogenesis 、 Protein family 、 Microbiology
摘要: The Synechocystis sp. PCC 6803 genome encodes four putative homologues of the AAA protease FtsH, two which (slr0228 and sll1463) have been subjected to insertional mutagenesis in this study. Disruption sll1463 had no discernible effect but disruption slr0228 caused a 60% reduction abundance functional photosystem I, without affecting cellular content II or phycobilisomes. Fluorescence immunoblotting analyses show reductions PS I polypeptides possible structural alterations residual indicating an important role for biogenesis.
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