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RECU_STAA2
ID   RECU_STAA2              Reviewed;         208 AA.
AC   A6U1R8;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Holliday junction resolvase RecU {ECO:0000255|HAMAP-Rule:MF_00130};
DE            EC=3.1.21.10 {ECO:0000255|HAMAP-Rule:MF_00130};
DE   AltName: Full=Recombination protein U homolog {ECO:0000255|HAMAP-Rule:MF_00130};
GN   Name=recU {ECO:0000255|HAMAP-Rule:MF_00130};
GN   OrderedLocusNames=SaurJH1_1537;
OS   Staphylococcus aureus (strain JH1).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=359787;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JH1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Ivanova N., Tomasz A., Richardson P.;
RT   "Complete sequence of chromosome of Staphylococcus aureus subsp. aureus
RT   JH1.";
RL   Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Endonuclease that resolves Holliday junction intermediates in
CC       genetic recombination. Cleaves mobile four-strand junctions by
CC       introducing symmetrical nicks in paired strands. Promotes annealing of
CC       linear ssDNA with homologous dsDNA. Required for DNA repair, homologous
CC       recombination and chromosome segregation. {ECO:0000255|HAMAP-
CC       Rule:MF_00130}.
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_00130};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00130};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00130};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00130}.
CC   -!- SIMILARITY: Belongs to the RecU family. {ECO:0000255|HAMAP-
CC       Rule:MF_00130}.
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DR   EMBL; CP000736; ABR52386.1; -; Genomic_DNA.
DR   RefSeq; WP_001108889.1; NC_009632.1.
DR   AlphaFoldDB; A6U1R8; -.
DR   SMR; A6U1R8; -.
DR   KEGG; sah:SaurJH1_1537; -.
DR   HOGENOM; CLU_096340_0_0_9; -.
DR   OMA; TDYNGIY; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008821; F:crossover junction endodeoxyribonuclease activity; IEA:UniProtKB-EC.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR   GO; GO:0007059; P:chromosome segregation; IEA:UniProtKB-UniRule.
DR   GO; GO:0006310; P:DNA recombination; IEA:UniProtKB-UniRule.
DR   GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.1350.10; -; 1.
DR   HAMAP; MF_00130; RecU; 1.
DR   InterPro; IPR004612; Resolv_RecU.
DR   InterPro; IPR011335; Restrct_endonuc-II-like.
DR   InterPro; IPR011856; tRNA_endonuc-like_dom_sf.
DR   Pfam; PF03838; RecU; 1.
DR   PIRSF; PIRSF037785; RecU; 1.
DR   SUPFAM; SSF52980; SSF52980; 1.
DR   TIGRFAMs; TIGR00648; recU; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; DNA damage; DNA recombination; DNA repair; Endonuclease;
KW   Hydrolase; Magnesium; Metal-binding; Nuclease.
FT   CHAIN           1..208
FT                   /note="Holliday junction resolvase RecU"
FT                   /id="PRO_1000076340"
FT   BINDING         87
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00130"
FT   BINDING         89
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00130"
FT   BINDING         102
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00130"
FT   BINDING         121
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00130"
FT   SITE            104
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00130"
SQ   SEQUENCE   208 AA;  24444 MW;  A6E8D1F14F6F567D CRC64;
     MNYPNGKPYR KNSAIDGGKK TAAFSNIEYG GRGMSLEKDI EHSNTFYLKS DIAVIHKKPT
     PVQIVNVNYP KRSKAVINEA YFRTPSTTDY NGVYQGYYID FEAKETKNKT SFPLNNIHDH
     QVEHMKNAYQ QKGIVFLMIR FKTLDEVYLL PYSKFEVFWK RYKDNIKKSI TVDEIRKNGY
     HIPYQYQPRL DYLKAVDKLI LDESEDRV
 
 
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