ID RUVC_CHRSD Reviewed; 186 AA. AC Q1QWG0; DT 29-APR-2008, integrated into UniProtKB/Swiss-Prot. DT 16-MAY-2006, sequence version 1. DT 27-MAR-2024, entry version 118. 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=Csal_1846; OS Chromohalobacter salexigens (strain ATCC BAA-138 / DSM 3043 / CIP 106854 / OS NCIMB 13768 / 1H11). OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales; OC Halomonadaceae; Chromohalobacter. OX NCBI_TaxID=290398; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC BAA-138 / DSM 3043 / CIP 106854 / NCIMB 13768 / 1H11; RX PubMed=22675587; DOI=10.4056/sigs.2285059; RA Copeland A., O'Connor K., Lucas S., Lapidus A., Berry K.W., Detter J.C., RA Del Rio T.G., Hammon N., Dalin E., Tice H., Pitluck S., Bruce D., RA Goodwin L., Han C., Tapia R., Saunders E., Schmutz J., Brettin T., RA Larimer F., Land M., Hauser L., Vargas C., Nieto J.J., Kyrpides N.C., RA Ivanova N., Goker M., Klenk H.P., Csonka L.N., Woyke T.; RT "Complete genome sequence of the halophilic and highly halotolerant RT Chromohalobacter salexigens type strain (1H11(T))."; RL Stand. Genomic Sci. 5:379-388(2011). 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; CP000285; ABE59198.1; -; Genomic_DNA. DR RefSeq; WP_011507144.1; NC_007963.1. DR AlphaFoldDB; Q1QWG0; -. DR SMR; Q1QWG0; -. DR STRING; 290398.Csal_1846; -. DR KEGG; csa:Csal_1846; -. DR eggNOG; COG0817; Bacteria. DR HOGENOM; CLU_091257_2_1_6; -. DR OrthoDB; 9805499at2; -. DR Proteomes; UP000000239; 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..186 FT /note="Crossover junction endodeoxyribonuclease RuvC" FT /id="PRO_0000332414" FT REGION 162..186 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT ACT_SITE 14 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT ACT_SITE 73 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT ACT_SITE 145 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 14 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 73 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="2" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 145 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" SQ SEQUENCE 186 AA; 19745 MW; 5A28D98D5F368054 CRC64; MTGEGSATIL LGIDPGSRIT GYGVVDVATP TPRYVASGCI RIKSDQLAQK LAQVYAGIGE LIGLHRPHEI AIEQVFMSKN ADSALKLGQA RGTAIVCAAN HGLEVFEYAP TQIKQAVTGT GAATKEQVQH MVTAILGLDG VPQADAADAL AIALTHAYAR QGRSLPPSRG RRRSGSRQRW RDYRPS //