Selective modulation of the functions of a conserved DNA motor by a histone fold complex

作者: Dorina Saro , Hengyao Niu , Grzegorz Ira , Dana Branzei , Patrick Sung

DOI: 10.1101/GAD.259143.115

关键词:

摘要: Budding yeast Mph1 helicase and its orthologs drive multiple DNA transactions. Elucidating the mechanisms that regulate these motor proteins is central to understanding genome maintenance processes. Here, we show conserved histone fold MHF complex promotes Mph1-mediated repair of damaged replication forks but does not influence outcome double-strand break repair. Mechanistically, scMHF relieves inhibition imposed by structural chromosome protein Smc5 on activities relevant replication-associated through binding DNA. Thus, a function-specific enhancer enables flexible response different situations.

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