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Treacher Collins syndrome mutations in Saccharomyces cerevisiae destabilize RNA polymerase I and III complex integrity.


ABSTRACT: Treacher Collins syndrome (TCS) is a craniofacial disorder that is characterized by the malformation of the facial bones. Mutations in three genes (TCOF1, POLR1C and POLR1D) involved in RNA polymerase I (Pol I) transcription account for more than 90% of disease cases. Two of these TCS-associated genes, POLR1C and POLR1D, encode for essential Pol I/III subunits that form a heterodimer necessary for Pol I/III assembly, and many TCS mutations lie along their evolutionarily conserved dimerization interface. Here we elucidate the molecular basis of TCS mutations in Saccharomyces cerevisiae, and present a new model for how TCS mutations may disrupt Pol I and III complex integrity.

SUBMITTER: Walker-Kopp N 

PROVIDER: S-EPMC6251613 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Treacher Collins syndrome mutations in Saccharomyces cerevisiae destabilize RNA polymerase I and III complex integrity.

Walker-Kopp Nancy N   Jackobel Ashleigh J AJ   Pannafino Gianno N GN   Morocho Paola A PA   Xu Xia X   Knutson Bruce A BA  

Human molecular genetics 20171101 21


Treacher Collins syndrome (TCS) is a craniofacial disorder that is characterized by the malformation of the facial bones. Mutations in three genes (TCOF1, POLR1C and POLR1D) involved in RNA polymerase I (Pol I) transcription account for more than 90% of disease cases. Two of these TCS-associated genes, POLR1C and POLR1D, encode for essential Pol I/III subunits that form a heterodimer necessary for Pol I/III assembly, and many TCS mutations lie along their evolutionarily conserved dimerization in  ...[more]

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