ID   RUVC_ORITB              Reviewed;         159 AA.
AC   A5CES8;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 2.
DT   03-AUG-2022, entry version 74.
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=OTBS_1638;
OS   Orientia tsutsugamushi (strain Boryong) (Rickettsia tsutsugamushi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Orientia.
OX   NCBI_TaxID=357244;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Boryong;
RX   PubMed=17483455; DOI=10.1073/pnas.0611553104;
RA   Cho N.-H., Kim H.-R., Lee J.-H., Kim S.-Y., Kim J., Cha S., Kim S.-Y.,
RA   Darby A.C., Fuxelius H.-H., Yin J., Kim J.H., Kim J., Lee S.J., Koh Y.-S.,
RA   Jang W.-J., Park K.-H., Andersson S.G.E., Choi M.-S., Kim I.-S.;
RT   "The Orientia tsutsugamushi genome reveals massive proliferation of
RT   conjugative type IV secretion system and host-cell interaction genes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:7981-7986(2007).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAM80733.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AM494475; CAM80733.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041621530.1; NC_009488.1.
DR   AlphaFoldDB; A5CES8; -.
DR   SMR; A5CES8; -.
DR   EnsemblBacteria; CAM80733; CAM80733; OTBS_1638.
DR   KEGG; ots:OTBS_1638; -.
DR   eggNOG; COG0817; Bacteria.
DR   HOGENOM; CLU_091257_1_0_5; -.
DR   Proteomes; UP000001565; 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; 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.
PE   3: Inferred from homology;
KW   DNA damage; DNA recombination; DNA repair; Hydrolase; Magnesium;
KW   Metal-binding; Nuclease; Reference proteome.
FT   CHAIN           1..159
FT                   /note="Crossover junction endodeoxyribonuclease RuvC"
FT                   /id="PRO_0000332435"
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   159 AA;  17459 MW;  B9D2B79025B07822 CRC64;
     MIILGIDPSL VSTGWGVISI SDSMVNYIDS GVIKTVSKDS LVLKLGNISL MIEKLITRFN
     PFHVAMEEVF INKNYSSSVT LIQARGAIMS VIGRYNIDFS EYAPNKIKKA IVGAGKAEKH
     QVQQMVKLLM HIKKAISKDE SDALATAYTA SVNQQIKII