Clinical sequencing of the retinitis pigmentosa gene RPGR in over 1,000 cases of vision loss.
Mol Vis
; 30: 49-57, 2024.
Article
in En
| MEDLINE
| ID: mdl-38586605
ABSTRACT
RPGR pathogenic variants are the major cause of X-linked retinitis pigmentosa. Here, we report the results from 1,033 clinical DNA tests that included sequencing of RPGR. A total of 184 RPGR variants were identified 78 pathogenic or likely pathogenic, 14 uncertain, and 92 likely benign or benign. Among the pathogenic and likely pathogenic variants, 23 were novel, and most were frameshift or nonsense mutations (87%) and enriched (67%) in RPGR exon 15 (ORF15). Identical pathogenic variants found in different families were largely on different haplotype backgrounds, indicating relatively frequent, recurrent RPGR mutations. None of the 16 mother/affected son pairs showed de novo mutations; all 16 mothers were heterozygous for the pathogenic variant. These last two observations support the occurrence of most RPGR mutations in the male germline.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Retinitis Pigmentosa
/
Eye Proteins
Limits:
Humans
Language:
En
Journal:
Mol Vis
Journal subject:
BIOLOGIA MOLECULAR
/
OFTALMOLOGIA
Year:
2024
Document type:
Article
Country of publication:
United States