ID RUVC_TOLAT Reviewed; 173 AA. AC C4LBN2; DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot. DT 07-JUL-2009, sequence version 1. DT 27-MAR-2024, entry version 69. DE RecName: Full=Crossover junction endodeoxyribonuclease RuvC {ECO:0000255|HAMAP-Rule:MF_00034}; DE EC=3.1.21.10 {ECO:0000255|HAMAP-Rule:MF_00034}; DE AltName: Full=Holliday junction nuclease RuvC {ECO:0000255|HAMAP-Rule:MF_00034}; DE AltName: Full=Holliday junction resolvase RuvC {ECO:0000255|HAMAP-Rule:MF_00034}; GN Name=ruvC {ECO:0000255|HAMAP-Rule:MF_00034}; GN OrderedLocusNames=Tola_2713; OS Tolumonas auensis (strain DSM 9187 / TA4). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Aeromonadales; OC Aeromonadaceae; Tolumonas. OX NCBI_TaxID=595494; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=DSM 9187 / TA4; RG US DOE Joint Genome Institute; RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D., RA Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C., RA Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Spring S., RA Beller H.; RT "Complete sequence of Tolumonas auensis DSM 9187."; RL Submitted (MAY-2009) to the EMBL/GenBank/DDBJ databases. CC -!- FUNCTION: The RuvA-RuvB-RuvC complex processes Holliday junction (HJ) CC DNA during genetic recombination and DNA repair. Endonuclease that CC resolves HJ intermediates. Cleaves cruciform DNA by making single- CC stranded nicks across the HJ at symmetrical positions within the CC homologous arms, yielding a 5'-phosphate and a 3'-hydroxyl group; CC requires a central core of homology in the junction. The consensus CC cleavage sequence is 5'-(A/T)TT(C/G)-3'. Cleavage occurs on the 3'-side CC of the TT dinucleotide at the point of strand exchange. HJ branch CC migration catalyzed by RuvA-RuvB allows RuvC to scan DNA until it finds CC its consensus sequence, where it cleaves and resolves the cruciform CC DNA. {ECO:0000255|HAMAP-Rule:MF_00034}. CC -!- CATALYTIC ACTIVITY: CC Reaction=Endonucleolytic cleavage at a junction such as a reciprocal CC single-stranded crossover between two homologous DNA duplexes CC (Holliday junction).; EC=3.1.21.10; Evidence={ECO:0000255|HAMAP- CC Rule:MF_00034}; CC -!- COFACTOR: CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP- CC Rule:MF_00034}; CC Note=Binds 2 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00034}; CC -!- SUBUNIT: Homodimer which binds Holliday junction (HJ) DNA. The HJ CC becomes 2-fold symmetrical on binding to RuvC with unstacked arms; it CC has a different conformation from HJ DNA in complex with RuvA. In the CC full resolvosome a probable DNA-RuvA(4)-RuvB(12)-RuvC(2) complex forms CC which resolves the HJ. {ECO:0000255|HAMAP-Rule:MF_00034}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00034}. CC -!- SIMILARITY: Belongs to the RuvC family. {ECO:0000255|HAMAP- CC Rule:MF_00034}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; CP001616; ACQ94306.1; -; Genomic_DNA. DR RefSeq; WP_015879755.1; NC_012691.1. DR AlphaFoldDB; C4LBN2; -. DR SMR; C4LBN2; -. DR STRING; 595494.Tola_2713; -. DR KEGG; tau:Tola_2713; -. DR eggNOG; COG0817; Bacteria. DR HOGENOM; CLU_091257_2_1_6; -. DR OrthoDB; 9805499at2; -. DR Proteomes; UP000009073; Chromosome. DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell. DR GO; GO:0048476; C:Holliday junction resolvase complex; IEA:UniProtKB-UniRule. DR GO; GO:0008821; F:crossover junction DNA endonuclease activity; IEA:UniProtKB-UniRule. DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW. DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule. DR GO; GO:0006310; P:DNA recombination; IEA:UniProtKB-UniRule. DR GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule. DR CDD; cd16962; RuvC; 1. DR Gene3D; 3.30.420.10; Ribonuclease H-like superfamily/Ribonuclease H; 1. DR HAMAP; MF_00034; RuvC; 1. DR InterPro; IPR012337; RNaseH-like_sf. DR InterPro; IPR036397; RNaseH_sf. DR InterPro; IPR020563; X-over_junc_endoDNase_Mg_BS. DR InterPro; IPR002176; X-over_junc_endoDNase_RuvC. DR NCBIfam; TIGR00228; ruvC; 1. DR PANTHER; PTHR30194; CROSSOVER JUNCTION ENDODEOXYRIBONUCLEASE RUVC; 1. DR PANTHER; PTHR30194:SF3; CROSSOVER JUNCTION ENDODEOXYRIBONUCLEASE RUVC; 1. DR Pfam; PF02075; RuvC; 1. DR PRINTS; PR00696; RSOLVASERUVC. DR SUPFAM; SSF53098; Ribonuclease H-like; 1. DR PROSITE; PS01321; RUVC; 1. PE 3: Inferred from homology; KW Cytoplasm; DNA damage; DNA recombination; DNA repair; DNA-binding; KW Endonuclease; Hydrolase; Magnesium; Metal-binding; Nuclease; KW Reference proteome. FT CHAIN 1..173 FT /note="Crossover junction endodeoxyribonuclease RuvC" FT /id="PRO_1000202044" FT ACT_SITE 8 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT ACT_SITE 67 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT ACT_SITE 139 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 8 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 67 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="2" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 139 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" SQ SEQUENCE 173 AA; 18405 MW; 12A00113C13EF6EB CRC64; MTIILGIDPG SRITGYGVIR QQAGKVEYLG SGCIRTSGEQ LSDKLKQIYD GISEIILQFK PDLFAIEQVF MAKNPDSALK LGQARGSAIV AAVNAGLPVA EYAARQVKQS VVGTGAADKE QVQHMVKQLL KLPACPQADA ADALAVALCH SHTQQTLIRM AGKVHGTARG RLR //