To describe an Italian family in which two separate phenotypes (retinitis pigmentosa and adult onset vitelliform macular dystrophy) are associated with an identical mutation (S212G) in the peripherin/RDS gene.
Individuals who coinherit a L185P peripherin-2 mutation and a null or G113E rom-1 mutation are afflicted with retinitis pigmentosa, whereas individuals who inherit only one defective gene are normal.
We found three different unreported mutations 689delT, 857del17, corresponding to two macular dystrophy families and G208D in a retinitis pigmentosa (RP) family giving us a proportion of about 20% of RDS mutations in autosomal dominant Spanish macular dystrophies and 3% in ADRP.
Patients from two families, one with a mutation in codon 167 (Gly167Asp) leading to macular degeneration and another with a mutation in codon 210 (Pro210Ser) leading to retinitis pigmentosa, were studied with clinical examinations and measurements of rod and cone sensitivities and dark adaptation, electroretinography, and rhodopsin levels.
Patients from two families, one with a mutation in codon 167 (Gly167Asp) leading to macular degeneration and another with a mutation in codon 210 (Pro210Ser) leading to retinitis pigmentosa, were studied with clinical examinations and measurements of rod and cone sensitivities and dark adaptation, electroretinography, and rhodopsin levels.