Unknown

Dataset Information

0

Dystrophia myotonia: why focus on foci?


ABSTRACT: Dystrophia myotonia type 1 (DM1; Steinert's disease; myotonic dystrophy) is an autosomal dominant disorder due to a large CTG expansion in the 3'-untranslated region (UTR) of the DM protein kinase (DMPK) gene. Transcription of this gene yields a long CUGn-containing mutant (mut) RNA, in which clinical disease is associated with repeats of n=100-5000. Phenomenologically, the expression of mut RNA is correlated with the morphologic observation of ribonucleoprotein precipitates ('foci') in the nuclei of DMPK-expressing cells. The prevailing view is that the identification of proteins in these foci is the sine qua non of protein-mut RNA interactions. In this viewpoint, I contend that this is an unwarranted inference that falls short in explaining published data. A new model of mut RNA-protein interactions is proposed with distinct binding properties for soluble and insoluble (focus) mut RNA that accommodate these data without exclusions.

SUBMITTER: Junghans RP 

PROVIDER: S-EPMC2986259 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

altmetric image

Publications

Dystrophia myotonia: why focus on foci?

Junghans R P RP  

European journal of human genetics : EJHG 20090128 5


Dystrophia myotonia type 1 (DM1; Steinert's disease; myotonic dystrophy) is an autosomal dominant disorder due to a large CTG expansion in the 3'-untranslated region (UTR) of the DM protein kinase (DMPK) gene. Transcription of this gene yields a long CUGn-containing mutant (mut) RNA, in which clinical disease is associated with repeats of n=100-5000. Phenomenologically, the expression of mut RNA is correlated with the morphologic observation of ribonucleoprotein precipitates ('foci') in the nucl  ...[more]

Similar Datasets

| S-EPMC3168290 | biostudies-literature
| S-EPMC2762590 | biostudies-literature
| S-EPMC2854355 | biostudies-literature
| S-EPMC3564227 | biostudies-literature
2019-05-31 | E-MTAB-7983 | biostudies-arrayexpress
| S-EPMC7245888 | biostudies-literature
| S-EPMC2694559 | biostudies-literature
| S-EPMC4066779 | biostudies-literature
| S-EPMC4826137 | biostudies-literature
| S-EPMC9759411 | biostudies-literature