Hitting the brakes: termination of mitochondrial transcription.
Biochim Biophys Acta
; 1819(9-10): 939-47, 2012.
Article
en En
| MEDLINE
| ID: mdl-22137970
ABSTRACT
Deficiencies in mitochondrial protein production are associated with human disease and aging. Given the central role of transcription in gene expression, recent years have seen a renewed interest in understanding the molecular mechanisms controlling this process. In this review, we have focused on the mostly uncharacterized process of transcriptional termination. We review how several recent breakthroughs have provided insight into our understanding of the termination mechanism, the protein factors that mediate termination, and the functional relevance of different termination events. Furthermore, the identification of termination defects resulting from a number of mtDNA mutations has led to the suggestion that this could be a common mechanism influencing pathogenesis in a number of mitochondrial diseases, highlighting the importance of understanding the processes that regulate transcription in human mitochondria. We discuss how these recent findings set the stage for future studies on this important regulatory mechanism. This article is part of a Special Issue entitled Mitochondrial Gene Expression.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Transcripción Genética
/
ADN Mitocondrial
/
Proteínas Mitocondriales
/
Factores de Transcripción con Cremalleras de Leucina de Carácter Básico
/
Mitocondrias
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Biochim Biophys Acta
Año:
2012
Tipo del documento:
Article
País de afiliación:
Estados Unidos