ID   RUVC_GEOSL              Reviewed;         164 AA.
AC   Q74E88;
DT   07-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 100.
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}; OrderedLocusNames=GSU1075;
OS   Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC   Geobacteraceae; Geobacter.
OX   NCBI_TaxID=243231;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51573 / DSM 12127 / PCA;
RX   PubMed=14671304; DOI=10.1126/science.1088727;
RA   Methe B.A., Nelson K.E., Eisen J.A., Paulsen I.T., Nelson W.C.,
RA   Heidelberg J.F., Wu D., Wu M., Ward N.L., Beanan M.J., Dodson R.J.,
RA   Madupu R., Brinkac L.M., Daugherty S.C., DeBoy R.T., Durkin A.S.,
RA   Gwinn M.L., Kolonay J.F., Sullivan S.A., Haft D.H., Selengut J.,
RA   Davidsen T.M., Zafar N., White O., Tran B., Romero C., Forberger H.A.,
RA   Weidman J.F., Khouri H.M., Feldblyum T.V., Utterback T.R., Van Aken S.E.,
RA   Lovley D.R., Fraser C.M.;
RT   "Genome of Geobacter sulfurreducens: metal reduction in subsurface
RT   environments.";
RL   Science 302:1967-1969(2003).
CC   -!- FUNCTION: Nuclease that resolves Holliday junction intermediates in
CC       genetic recombination. Cleaves the cruciform structure in supercoiled
CC       DNA by nicking to strands with the same polarity at sites symmetrically
CC       opposed at the junction in the homologous arms and leaves a 5'-terminal
CC       phosphate and a 3'-terminal hydroxyl group. {ECO:0000255|HAMAP-
CC       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;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00034};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00034};
CC   -!- SIMILARITY: Belongs to the RuvC family. {ECO:0000255|HAMAP-
CC       Rule:MF_00034}.
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DR   EMBL; AE017180; AAR34401.1; -; Genomic_DNA.
DR   RefSeq; NP_952128.1; NC_002939.5.
DR   RefSeq; WP_010941736.1; NC_002939.5.
DR   AlphaFoldDB; Q74E88; -.
DR   SMR; Q74E88; -.
DR   STRING; 243231.GSU1075; -.
DR   EnsemblBacteria; AAR34401; AAR34401; GSU1075.
DR   KEGG; gsu:GSU1075; -.
DR   PATRIC; fig|243231.5.peg.1073; -.
DR   eggNOG; COG0817; Bacteria.
DR   HOGENOM; CLU_091257_3_1_7; -.
DR   InParanoid; Q74E88; -.
DR   OMA; AICHIWR; -.
DR   Proteomes; UP000000577; Chromosome.
DR   GO; GO:0008821; F:crossover junction endodeoxyribonuclease activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
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; -; 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   PANTHER; PTHR30194; PTHR30194; 1.
DR   Pfam; PF02075; RuvC; 1.
DR   PRINTS; PR00696; RSOLVASERUVC.
DR   SUPFAM; SSF53098; SSF53098; 1.
DR   TIGRFAMs; TIGR00228; ruvC; 1.
DR   PROSITE; PS01321; RUVC; 1.
PE   3: Inferred from homology;
KW   DNA damage; DNA recombination; DNA repair; Hydrolase; Magnesium;
KW   Metal-binding; Nuclease; Reference proteome.
FT   CHAIN           1..164
FT                   /note="Crossover junction endodeoxyribonuclease RuvC"
FT                   /id="PRO_0000225146"
FT   BINDING         7
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT   BINDING         67
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT   BINDING         139
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT   BINDING         142
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
SQ   SEQUENCE   164 AA;  17678 MW;  FB3E0EC9F4031D1A CRC64;
     MRVLGIDPGS RITGYGIIEK IGNRLVHVDN GAIHTDSHRE FALRLHKIYE GLSRVIEEYR
     PDAMAVEQVF LAHNAQSALK LGQARGAAIV AGVSAGLPVS EYTAMQVKQA VVGYGHARKE
     QVQQMVKSLL NLPEIAQADA SDALAVAVCH ANSAVMKSVL RSIR