RECU_STAEQ
ID RECU_STAEQ Reviewed; 208 AA.
AC Q5HP94;
DT 19-JUL-2005, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2005, sequence version 2.
DT 03-AUG-2022, entry version 100.
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}; OrderedLocusNames=SERP1019;
OS Staphylococcus epidermidis (strain ATCC 35984 / RP62A).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=176279;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35984 / RP62A;
RX PubMed=15774886; DOI=10.1128/jb.187.7.2426-2438.2005;
RA Gill S.R., Fouts D.E., Archer G.L., Mongodin E.F., DeBoy R.T., Ravel J.,
RA Paulsen I.T., Kolonay J.F., Brinkac L.M., Beanan M.J., Dodson R.J.,
RA Daugherty S.C., Madupu R., Angiuoli S.V., Durkin A.S., Haft D.H.,
RA Vamathevan J.J., Khouri H., Utterback T.R., Lee C., Dimitrov G., Jiang L.,
RA Qin H., Weidman J., Tran K., Kang K.H., Hance I.R., Nelson K.E.,
RA Fraser C.M.;
RT "Insights on evolution of virulence and resistance from the complete genome
RT analysis of an early methicillin-resistant Staphylococcus aureus strain and
RT a biofilm-producing methicillin-resistant Staphylococcus epidermidis
RT strain.";
RL J. Bacteriol. 187:2426-2438(2005).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAW54395.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000029; AAW54395.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_002476769.1; NC_002976.3.
DR AlphaFoldDB; Q5HP94; -.
DR SMR; Q5HP94; -.
DR STRING; 176279.SERP1019; -.
DR EnsemblBacteria; AAW54395; AAW54395; SERP1019.
DR GeneID; 50018740; -.
DR KEGG; ser:SERP1019; -.
DR eggNOG; COG3331; Bacteria.
DR HOGENOM; CLU_096340_0_0_9; -.
DR OMA; TDYNGIY; -.
DR OrthoDB; 1756221at2; -.
DR Proteomes; UP000000531; Chromosome.
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; Reference proteome.
FT CHAIN 1..208
FT /note="Holliday junction resolvase RecU"
FT /id="PRO_0000212310"
FT REGION 1..28
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
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; 24507 MW; F76381F85C2FFE8D CRC64;
MNYPNGKPYS KNKPLDGRKS SPFSSNIEYG GRGMTLEKDI EQSNTFYLKS GIAVIHKKPT
PVQIVNVHYP KRSKAVINEA YFRTPSTTDY NGVYNGYYID FEAKETKNKT SFPLNNIHAH
QVEHMKNTYH QKGIVFLMIR FKSLDEVYLL PYSKFEKYWQ RYINNIKKSI TVEEIRKNGY
HIPYQYQPRL NYLKAVDKLI LDESEDRV
