Crossover junction endodeoxyribonuclease RuvC

UniProtKB accession:  Q5SJC4

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UniProtKB description:  The RuvA-RuvB-RuvC complex processes Holliday junction (HJ) DNA during genetic recombination and DNA repair (Probable). Endonuclease that resolves Holliday junction (HJ) intermediates. Cleaves cruciform DNA by making single-stranded nicks across the HJ at symmetrical positions within the homologous arms, yielding a 5'-phosphate and a 3'-hydroxyl group; requires a central core of homology in the junction. The cleavage reactions can be uncoupled; the presence of a 5'-phosphate in a half-cut site is required for second strand cleavage (PubMed:23118486, PubMed:23980027, PubMed:31506434). The consensus cleavage sequence is 5'-(A/T)TT(C/G)-3'. Cleavage occurs on the 3'-side of the TT dinucleotide at the point of strand exchange (PubMed:31506434).