PMID- 26284109 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150818 LR - 20210622 IS - 1664-8021 (Print) IS - 1664-8021 (Electronic) IS - 1664-8021 (Linking) VI - 6 DP - 2015 TI - Hold your horSSEs: controlling structure-selective endonucleases MUS81 and Yen1/GEN1. PG - 253 LID - 10.3389/fgene.2015.00253 [doi] LID - 253 AB - Repair of DNA lesions through homologous recombination promotes the establishment of stable chromosomal interactions. Multiple helicases, topoisomerases and structure-selective endonucleases (SSEs) act upon recombining joint molecules (JMs) to disengage chromosomal connections and safeguard chromosome segregation. Recent studies on two conserved SSEs - MUS81 and Yen1/GEN1- uncovered multiple layers of regulation that operate to carefully tailor JM-processing according to specific cellular needs. Temporal restriction of SSE function imposes a hierarchy in pathway usage that ensures efficient JM-processing while minimizing reciprocal exchanges between the recombining DNAs. Whereas a conserved strategy of fine-tuning SSE functions exists in different model systems, the precise molecular mechanisms to implement it appear to be significantly different. Here, we summarize the current knowledge on the cellular switches that are in place to control MUS81 and Yen1/GEN1 functions. FAU - Blanco, Miguel G AU - Blanco MG AD - Department of Biochemistry and Molecular Biology, Center for Research in Molecular Medicine and Chronic Diseases, University of Santiago de Compostela , Santiago de Compostela, Spain. FAU - Matos, Joao AU - Matos J AD - Institute of Biochemistry, Swiss Federal Institute of Technology in Zurich , Zurich, Switzerland. LA - eng PT - Journal Article PT - Review DEP - 20150730 PL - Switzerland TA - Front Genet JT - Frontiers in genetics JID - 101560621 PMC - PMC4519697 OTO - NOTNLM OT - Cdc14 OT - Cdc5/PLK1 OT - Cdk OT - DNA repair OT - Holliday junction OT - nuclease OT - recombination OT - replication EDAT- 2015/08/19 06:00 MHDA- 2015/08/19 06:01 PMCR- 2015/07/30 CRDT- 2015/08/19 06:00 PHST- 2015/05/12 00:00 [received] PHST- 2015/07/13 00:00 [accepted] PHST- 2015/08/19 06:00 [entrez] PHST- 2015/08/19 06:00 [pubmed] PHST- 2015/08/19 06:01 [medline] PHST- 2015/07/30 00:00 [pmc-release] AID - 10.3389/fgene.2015.00253 [doi] PST - epublish SO - Front Genet. 2015 Jul 30;6:253. doi: 10.3389/fgene.2015.00253. eCollection 2015.