Structural basis of mitochondrial transcription

被引:74
作者
Hillen, Hauke S. [1 ]
Temiakov, Dmitry [2 ,3 ]
Cramer, Patrick [1 ]
机构
[1] Max Planck Inst Biophys Chem, Dept Mol Biol, Gottingen, Germany
[2] Rowan Univ, Sch Osteopath Med, Dept Cell Biol, Stratford, NJ USA
[3] Thomas Jefferson Univ, Dept Biochem & Mol Biol, Kimmel Canc Ctr, Philadelphia, PA 19107 USA
基金
欧洲研究理事会;
关键词
DNA-BINDING PROTEIN; RNA-POLYMERASE; YEAST MITOCHONDRIAL; RIBOSOMAL-RNA; CRYSTAL-STRUCTURE; IN-VIVO; METHYLTRANSFERASE ACTIVITY; PROMOTER RECOGNITION; INITIATION COMPLEX; HEAVY-STRAND;
D O I
10.1038/s41594-018-0122-9
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The mitochondrial genome is transcribed by a single-subunit DNA-dependent RNA polymerase (mtRNAP) and its auxiliary factors. Structural studies have elucidated how mtRNAP cooperates with its dedicated transcription factors to direct RNA synthesis: initiation factors TFAM and TFB2M assist in promoter-DNA binding and opening by mtRNAP while the elongation factor TEFM increases polymerase processivity to the levels required for synthesis of long polycistronic mtRNA transcripts. Here, we review the emerging body of structural and functional studies of human mitochondrial transcription, provide a molecular movie that can be used for teaching purposes and discuss the open questions to guide future directions of investigation.
引用
收藏
页码:754 / 765
页数:12
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