ID RUVC_SALHS Reviewed; 173 AA.
AC B4T7Z6;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 23-SEP-2008, sequence version 1.
DT 27-MAR-2024, entry version 79.
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=SeHA_C2112;
OS Salmonella heidelberg (strain SL476).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=454169;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SL476;
RX PubMed=21602358; DOI=10.1128/jb.00297-11;
RA Fricke W.F., Mammel M.K., McDermott P.F., Tartera C., White D.G.,
RA Leclerc J.E., Ravel J., Cebula T.A.;
RT "Comparative genomics of 28 Salmonella enterica isolates: evidence for
RT CRISPR-mediated adaptive sublineage evolution.";
RL J. Bacteriol. 193:3556-3568(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;
CC Evidence={ECO:0000255|HAMAP-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}.
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DR EMBL; CP001120; ACF67035.1; -; Genomic_DNA.
DR RefSeq; WP_000022509.1; NC_011083.1.
DR AlphaFoldDB; B4T7Z6; -.
DR SMR; B4T7Z6; -.
DR GeneID; 66237338; -.
DR KEGG; seh:SeHA_C2112; -.
DR HOGENOM; CLU_091257_2_1_6; -.
DR Proteomes; UP000001866; 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_1000090559"
FT ACT_SITE 8
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT ACT_SITE 67
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT ACT_SITE 139
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 67
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00034"
FT BINDING 139
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; 18791 MW; 41FCC3391A68AF62 CRC64;
MSIILGIDPG SRITGYGVIR QVGRQLTYLG SGCIRTKVDD LPSRLKLIYA GVTEIITQFQ
PDYFAIEQVF MAKNADSALK LGQARGVAIV AAVNQELPVF EYAARQVKQT VVGIGSAEKS
QVQHMVRTLL KLPANPQADA ADALAIAITH CHVSQNAMQM SESRLNLARG RLR
//