Updated Progress on Group II Intron Splicing Factors in Plant Chloroplasts

Autor: Chu Zeng, Qingsong Jiao, Ting Jia, Xueyun Hu
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Current Issues in Molecular Biology, Vol 44, Iss 9, Pp 4229-4239 (2022)
Druh dokumentu: article
ISSN: 1467-3045
1467-3037
DOI: 10.3390/cimb44090290
Popis: Group II introns are large catalytic RNAs (ribozymes) in the bacteria and organelle genomes of several lower eukaryotes. Many critical photosynthesis-related genes in the plant chloroplast genome also contain group II introns, and their splicing is critical for chloroplast biogenesis and photosynthesis processes. The structure of chloroplast group II introns was altered during evolution, resulting in the loss of intron self-splicing. Therefore, the assistance of protein factors was required for their splicing processes. As an increasing number of studies focus on the mechanism of chloroplast intron splicing; many new nuclear-encoded splicing factors that are involved in the chloroplast intron splicing process have been reported. This report reviewed the research progress of the updated splicing factors found to be involved in the splicing of chloroplast group II introns. We discuss the main problems that remain in this research field and suggest future research directions.
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