Exonic Variants that Affect Splicing - An Opportunity for "Hidden" Mutations Causing Inherited Retinal Diseases.
Adv Exp Med Biol
; 1415: 183-187, 2023.
Article
in En
| MEDLINE
| ID: mdl-37440032
ABSTRACT
Inherited retinal diseases (IRDs) are an extremely diverse group of ocular disorders characterized by progressive loss of photoreceptors leading to blindness. So far, pathogenic variants in over 300 genes are reported to structurally and functionally affect the retina resulting in visual impairment. Around 15% of all IRD mutations are known to affect an essential regulatory mechanism, pre-mRNA splicing, which contributes to the transcriptomic diversity. These variants disrupt potential donor and acceptor splice sites as well as other crucial cis-acting elements resulting in aberrant splicing. One group of these elements, the exonic splicing enhancers (ESEs), are involved in promoting exon definition and are likely to harbor "hidden" mutations since sequence-analyzing pipelines cannot identify them efficiently. The main focus of this review is to discuss the molecular mechanisms behind various exonic variants affecting splice sites and ESEs that lead to impaired splicing which in turn result in an IRD pathology.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Retinal Diseases
/
RNA Splicing
Limits:
Humans
Language:
En
Journal:
Adv Exp Med Biol
Year:
2023
Document type:
Article
Affiliation country:
Israel