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UV-sensitive syndrome 2

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Description

UV-sensitive syndrome-2 (UVSS2) is an autosomal recessive disorder characterized by cutaneous photosensitivity and increased freckling, without an increased risk of skin tumors. Patient cells show impaired recovery of RNA synthesis (RRS) after UV irradiation due to defective preferential repair of DNA damage in actively transcribing genes, although unscheduled DNA repair is normal. The cellular findings are consistent with a defect in transcription-coupled nucleotide excision repair (TC-NER) of UV damage (summary by Nardo et al., 2009). See also Cockayne syndrome type A (CSA; 216400), an allelic disorder with a more severe phenotype including neurologic symptoms and skeletal abnormalities. For a general phenotypic description and a discussion of genetic heterogeneity of UVSS, see UVSS1 (600630).

OMIM

  • Mode of Inheritance

  • Autosomal recessive inheritance

VARIANTS

4

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Genes

External Links

  • OMIM

    614621

  • Orphanet
  • HPO
  • Medgen

    C3553298

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