Missense mutation R121W in the Norrie disease gene in Kuwaiti Bedouin family

ABSTRACT

Herein, we describe the molecular defects in the Norrie disease [ND] gene in a Kuwaiti Bedouin family with three affected sibs. Norrie disease is a rare X-linked recessive disorder, characterized by congenital blindness, malformed retina, psychomotor delay and deafness in a proportion of patients. We analyzed the genomic DNA through polymerase chain reaction [PCR] and restriction fragment length polymorphism [PCR-RFLP] approach. We have found the presence of R121W mutation within exon 3. We have identified a single base pair substitution [C>T] mutation of ND gene