ID RUVC_HYPNA Reviewed; 167 AA. AC Q0C5W4; DT 29-APR-2008, integrated into UniProtKB/Swiss-Prot. DT 17-OCT-2006, sequence version 1. DT 27-MAR-2024, entry version 112. 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=HNE_0145; OS Hyphomonas neptunium (strain ATCC 15444). OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomonadales; OC Hyphomonadaceae; Hyphomonas. OX NCBI_TaxID=228405; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 15444; RX PubMed=16980487; DOI=10.1128/jb.00111-06; RA Badger J.H., Hoover T.R., Brun Y.V., Weiner R.M., Laub M.T., Alexandre G., RA Mrazek J., Ren Q., Paulsen I.T., Nelson K.E., Khouri H.M., Radune D., RA Sosa J., Dodson R.J., Sullivan S.A., Rosovitz M.J., Madupu R., RA Brinkac L.M., Durkin A.S., Daugherty S.C., Kothari S.P., Giglio M.G., RA Zhou L., Haft D.H., Selengut J.D., Davidsen T.M., Yang Q., Zafar N., RA Ward N.L.; RT "Comparative genomic evidence for a close relationship between the RT dimorphic prosthecate bacteria Hyphomonas neptunium and Caulobacter RT crescentus."; RL J. Bacteriol. 188:6841-6850(2006). 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; CP000158; ABI78261.1; -; Genomic_DNA. DR RefSeq; WP_011645179.1; NC_008358.1. DR AlphaFoldDB; Q0C5W4; -. DR SMR; Q0C5W4; -. DR STRING; 228405.HNE_0145; -. DR KEGG; hne:HNE_0145; -. DR eggNOG; COG0817; Bacteria. DR HOGENOM; CLU_091257_1_0_5; -. DR Proteomes; UP000001959; 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..167 FT /note="Crossover junction endodeoxyribonuclease RuvC" FT /id="PRO_0000332423" FT ACT_SITE 11 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT ACT_SITE 71 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT ACT_SITE 143 FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 11 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 71 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="2" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" FT BINDING 143 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /ligand_label="1" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034" SQ SEQUENCE 167 AA; 17507 MW; ED9D365263659900 CRC64; MSTPIRILGI DPGLRHTGWG VIEQSGARLV HIAHGVIDPP TDLSMAERLG HIFEAVGELA RHHAPHAAGV EETLVNANPR SALKLGQARG AAMAALAMAG VSVAEFAPRQ IKLSVVGTGT ADKDQVKFMV QRLLPRAGEM KLDAADALAC AICAAHHLPL QMKRGAA //