Schuster W
Institut für Genbiologische Forschung, Berlin, Germany.
Plant Mol Biol. 1994 Apr;25(1):33-42. doi: 10.1007/BF00024196.
A highly transcribed region in Oenothera mitochondria codes for a reading frame (orf206) which shows high homology to the Marchantia encoded mitochondrial open reading frame orf277 and is also conserved in the mitochondrial genomes of Arabidopsis thaliana and Daucus carota. Transcripts of orf206 are modified by cytidine to uridine changes in 46 positions by RNA editing, affecting 30% of all cytidines and 15% of the total encoded amino acids. This ORF is cotranscribed with an upstream reading frame and with the downstream rps 14 gene. The orf206 deduced protein shows high similarity to polypeptides which are proposed to be part of an ABC-type heme transporter involved in cytochrome c biogenesis in Bradyrhizobium and Rhodobacter.
月见草线粒体中的一个高转录区域编码一个阅读框（orf206），该阅读框与地钱编码的线粒体开放阅读框orf277具有高度同源性，并且在拟南芥和胡萝卜的线粒体基因组中也保守。orf206的转录本通过RNA编辑在46个位置将胞嘧啶转变为尿嘧啶，影响了所有胞嘧啶的30%和总编码氨基酸的15%。这个开放阅读框与上游阅读框以及下游的rps 14基因共转录。从orf206推导出来的蛋白质与一些多肽具有高度相似性，这些多肽被认为是参与慢生根瘤菌和红细菌细胞色素c生物合成的ABC型血红素转运蛋白的一部分。
