Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0028738 (nystagmus)
 7,431 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Pediatric cone-rod dystrophies are a genetically heterogenous group of disorders characterized by photophobia, progressive loss of central vision, and subsequent gradual loss of peripheral vision. In general, clinical presentation is not specific for a particular gene mutation; however, there are exceptions, which are important to recognize in order to facilitate molecular diagnosis. In this report, we highlight that pediatric cone-rod dystrophy with high myopia and nystagmus suggests recessive mutations in the gene PROM1.
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PMID:Pediatric Cone-Rod Dystrophy with High Myopia and Nystagmus Suggests Recessive PROM1 Mutations. 2454 9

The PROM1 (prominin 1) gene encodes an 865-amino acid glycoprotein that is expressed in retinoblastoma cell lines and in the adult retina. The protein is localized to photoreceptor outer segment disc membranes, where it plays a structural role, and in the retinal pigment epithelium (RPE), where it acts as a cytosolic protein that mediates autophagy. Mutations in PROM1 are typically associated with cone-rod dystrophy 12 (OMIM#3612657), autosomal dominant retinal macular dystrophy 2 (OMIM#608051), autosomal recessive retinitis pigmentosa 41 (OMIM#612095), and Stargardt disease 4 (OMIM#603786). Here we describe the first case of PROM1-associated Leber congenital amaurosis (LCA) in a 12-yr-old Asian male, caused by two not previously described deleterious frameshift variants in the compound heterozygous state. Clinical features include the presence of bull's eye maculopathy, pendular horizontal nystagmus, and photodysphoria consistent with the clinical diagnosis of LCA. The patient was evaluated using ophthalmic imaging, electroretinography, and whole-exome sequencing. Electroretinography revealed extinguished retinal activity.
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PMID:Compound heterozygous novel frameshift variants in the PROM1 gene result in Leber congenital amaurosis. 3183 89