ID   RUVC_XYLFA              Reviewed;         173 AA.
AC   Q9PC76;
DT   15-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   15-MAY-2002, sequence version 2.
DT   27-MAR-2024, entry version 115.
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=XF_1905;
OS   Xylella fastidiosa (strain 9a5c).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xylella.
OX   NCBI_TaxID=160492;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=9a5c;
RX   PubMed=10910347; DOI=10.1038/35018003;
RA   Simpson A.J.G., Reinach F.C., Arruda P., Abreu F.A., Acencio M.,
RA   Alvarenga R., Alves L.M.C., Araya J.E., Baia G.S., Baptista C.S.,
RA   Barros M.H., Bonaccorsi E.D., Bordin S., Bove J.M., Briones M.R.S.,
RA   Bueno M.R.P., Camargo A.A., Camargo L.E.A., Carraro D.M., Carrer H.,
RA   Colauto N.B., Colombo C., Costa F.F., Costa M.C.R., Costa-Neto C.M.,
RA   Coutinho L.L., Cristofani M., Dias-Neto E., Docena C., El-Dorry H.,
RA   Facincani A.P., Ferreira A.J.S., Ferreira V.C.A., Ferro J.A., Fraga J.S.,
RA   Franca S.C., Franco M.C., Frohme M., Furlan L.R., Garnier M., Goldman G.H.,
RA   Goldman M.H.S., Gomes S.L., Gruber A., Ho P.L., Hoheisel J.D.,
RA   Junqueira M.L., Kemper E.L., Kitajima J.P., Krieger J.E., Kuramae E.E.,
RA   Laigret F., Lambais M.R., Leite L.C.C., Lemos E.G.M., Lemos M.V.F.,
RA   Lopes S.A., Lopes C.R., Machado J.A., Machado M.A., Madeira A.M.B.N.,
RA   Madeira H.M.F., Marino C.L., Marques M.V., Martins E.A.L., Martins E.M.F.,
RA   Matsukuma A.Y., Menck C.F.M., Miracca E.C., Miyaki C.Y.,
RA   Monteiro-Vitorello C.B., Moon D.H., Nagai M.A., Nascimento A.L.T.O.,
RA   Netto L.E.S., Nhani A. Jr., Nobrega F.G., Nunes L.R., Oliveira M.A.,
RA   de Oliveira M.C., de Oliveira R.C., Palmieri D.A., Paris A., Peixoto B.R.,
RA   Pereira G.A.G., Pereira H.A. Jr., Pesquero J.B., Quaggio R.B.,
RA   Roberto P.G., Rodrigues V., de Rosa A.J.M., de Rosa V.E. Jr., de Sa R.G.,
RA   Santelli R.V., Sawasaki H.E., da Silva A.C.R., da Silva A.M.,
RA   da Silva F.R., Silva W.A. Jr., da Silveira J.F., Silvestri M.L.Z.,
RA   Siqueira W.J., de Souza A.A., de Souza A.P., Terenzi M.F., Truffi D.,
RA   Tsai S.M., Tsuhako M.H., Vallada H., Van Sluys M.A., Verjovski-Almeida S.,
RA   Vettore A.L., Zago M.A., Zatz M., Meidanis J., Setubal J.C.;
RT   "The genome sequence of the plant pathogen Xylella fastidiosa.";
RL   Nature 406:151-159(2000).
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, ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAF84711.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AE003849; AAF84711.1; ALT_INIT; Genomic_DNA.
DR   PIR; H82623; H82623.
DR   RefSeq; WP_010894371.1; NC_002488.3.
DR   AlphaFoldDB; Q9PC76; -.
DR   SMR; Q9PC76; -.
DR   STRING; 160492.XF_1905; -.
DR   KEGG; xfa:XF_1905; -.
DR   eggNOG; COG0817; Bacteria.
DR   HOGENOM; CLU_091257_2_1_6; -.
DR   Proteomes; UP000000812; 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.
FT   CHAIN           1..173
FT                   /note="Crossover junction endodeoxyribonuclease RuvC"
FT                   /id="PRO_0000183152"
FT   ACT_SITE        8
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT   ACT_SITE        69
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT   ACT_SITE        141
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         69
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT   BINDING         141
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;  18489 MW;  617A4870D2C899F7 CRC64;
     MTRILGIDPG SQRTGVGVID VDEYGCSRHV YHAPLVLLGQ SSFAGRLKQL LLGLSAVIEE
     YSPKEVAIEK VFMSKNADSA LKLGQARGVA ISAVVLRDLP VHEYAARQIK LAVVGRGGAD
     KQQIQHMVGV MLNLQGRLQS DAADALAVAI THAHVSATAQ RLGVSTKQAW SRK
//