Mutations in UVSSA cause UV-sensitive syndrome and impair RNA polymerase IIo processing in transcription-coupled nucleotide-excision repair

Nakazawa, Yuka, Sasaki, Kensaku, Mitsutake, Norisato, Matsuse, Michiko, Shimada, Mayuko, Nardo, Tiziana, Takahashi, Yoshito, Ohyama, Kaname Ohyama, Ito, Kosei, Mishima, Hiroyuki, Nomura, Masayo, Kinoshita, Akira, Ono, Shinji, Takenaka, Katsuya, Masuyama, Ritsuko, Kudo, Takashi, Slor, Hanoch, Utani, Atsushi, Tateishi, Satoshi, Yamashita, Shunichi, Stefanini, Miria, Lehmann, Alan R, Yoshiura, Koh-ichiro and Ogi, Tomoo (2012) Mutations in UVSSA cause UV-sensitive syndrome and impair RNA polymerase IIo processing in transcription-coupled nucleotide-excision repair. Nature Genetics, 44 (5). pp. 586-592. ISSN 1061-4036

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Abstract

UV-sensitive syndrome (UVSS) is a genodermatosis characterized by cutaneous photosensitivity without skin carcinoma1, 2, 3, 4. Despite mild clinical features, cells from individuals with UVSS, like Cockayne syndrome cells, are very UV sensitive and are deficient in transcription-coupled nucleotide-excision repair (TC-NER)2, 4, 5, which removes DNA damage in actively transcribed genes6. Three of the seven known UVSS cases carry mutations in the Cockayne syndrome genes ERCC8 or ERCC6 (also known as CSA and CSB, respectively)7, 8. The remaining four individuals with UVSS, one of whom is described for the first time here, formed a separate UVSS-A complementation group1, 9, 10; however, the responsible gene was unknown. Using exome sequencing11, we determine that mutations in the UVSSA gene (formerly known as KIAA1530) cause UVSS-A. The UVSSA protein interacts with TC-NER machinery and stabilizes the ERCC6 complex; it also facilitates ubiquitination of RNA polymerase IIo stalled at DNA damage sites. Our findings provide mechanistic insights into the processing of stalled RNA polymerase and explain the different clinical features across these TC-NER–deficient disorders.

Item Type: Article
Keywords: Exome sequencing Bioinformatic analysis for the exome data Run-of-homozygosity Quantitative RT-PCR analysis Recovery of RNA synthesis Immunofluorescence detection of UVSSA protein
Schools and Departments: School of Life Sciences > Sussex Centre for Genome Damage and Stability
Subjects: Q Science
Depositing User: Philippa Erasmus
Date Deposited: 15 May 2012 09:39
Last Modified: 13 Aug 2017 06:41
URI: http://sro.sussex.ac.uk/id/eprint/39311

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