Trichothiodystrophy (TTD) is a premature aging syndrome, with the hallmark feature of brittle hair and nails, ichthyosis, and progressive mental and physical retardation. Within photo-sensitive TTD, three TFIIH coding genes (ERCC2, ERCC3, and TTDA/GTF2H5) are implicated. Non-photosensitive trichothiodystrophy (TTDN) is characterized by short stature, intellectual impairment, sulfur-deficient brittle hair, and decreased male fertility but not cutaneous photosensitivity. Mutations in MPLKIP, RNF113A, and GTF2E2 have been reported.
Giglia-Mari G, Coin F, Ranish JA, Hoogstraten D, Theil A, Wijgers N, Jaspers NG, Raams A, Argentini M, van der Spek PJ, Botta E, Stefanini M, Egly JM, Aebersold R, Hoeijmakers JH, Vermeulen W
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A new, tenth subunit of TFIIH is responsible for the DNA repair syndrome trichothiodystrophy group A.
Nakabayashi K, Amann D, Ren Y, Saarialho-Kere U, Avidan N, Gentles S, MacDonald JR, Puffenberger EG, Christiano AM, Martinez-Mir A, Salas-Alanis JC, Rizzo R, Vamos E, Raams A, Les C, Seboun E, Jaspers NG, Beckmann JS, Jackson CE, Scherer SW
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Identification of C7orf11 (TTDN1) gene mutations and genetic heterogeneity in nonphotosensitive trichothiodystrophy.
Theil AF, Botta E, Raams A, Smith DEC, Mendes MI, Caligiuri G, Giachetti S, Bione S, Carriero R, Liberi G, Zardoni L, Swagemakers SMA, Salomons GS, Sarasin A, Lehmann A, van der Spek PJ, Ogi T, Hoeijmakers JHJ, Vermeulen W, Orioli D
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Bi-allelic TARS Mutations Are Associated with Brittle Hair Phenotype.
Botta E, Theil AF, Raams A, Caligiuri G, Giachetti S, Bione S, Accadia M, Lombardi A, Smith DEC, Mendes MI, Swagemakers SMA, van der Spek PJ, Salomons GS, Hoeijmakers JHJ, Yesodharan D, Nampoothiri S, Ogi T, Lehmann AR, Orioli D, Vermeulen W
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Protein instability associated with AARS1 and MARS1 mutations causes trichothiodystrophy.
