ID   XERC_ECOSM              Reviewed;         298 AA.
AC   B1LLY2;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 79.
DE   RecName: Full=Tyrosine recombinase XerC {ECO:0000255|HAMAP-Rule:MF_01808};
GN   Name=xerC {ECO:0000255|HAMAP-Rule:MF_01808};
GN   OrderedLocusNames=EcSMS35_4177;
OS   Escherichia coli (strain SMS-3-5 / SECEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=439855;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SMS-3-5 / SECEC;
RX   PubMed=18708504; DOI=10.1128/jb.00661-08;
RA   Fricke W.F., Wright M.S., Lindell A.H., Harkins D.M., Baker-Austin C.,
RA   Ravel J., Stepanauskas R.;
RT   "Insights into the environmental resistance gene pool from the genome
RT   sequence of the multidrug-resistant environmental isolate Escherichia coli
RT   SMS-3-5.";
RL   J. Bacteriol. 190:6779-6794(2008).
CC   -!- FUNCTION: Site-specific tyrosine recombinase, which acts by catalyzing
CC       the cutting and rejoining of the recombining DNA molecules. Binds
CC       cooperatively to specific DNA consensus sequences that are separated
CC       from XerD binding sites by a short central region, forming the
CC       heterotetrameric XerC-XerD complex that recombines DNA substrates. The
CC       complex is essential to convert dimers of the bacterial chromosome into
CC       monomers to permit their segregation at cell division. It also
CC       contributes to the segregational stability of plasmids. In the complex
CC       XerC specifically exchanges the top DNA strands. {ECO:0000255|HAMAP-
CC       Rule:MF_01808}.
CC   -!- ACTIVITY REGULATION: FtsK may regulate the catalytic switch between
CC       XerC and XerD in the heterotetrameric complex during the two steps of
CC       the recombination process. {ECO:0000255|HAMAP-Rule:MF_01808}.
CC   -!- SUBUNIT: Forms a cyclic heterotetrameric complex composed of two
CC       molecules of XerC and two molecules of XerD, in which XerC interacts
CC       with XerD via its C-terminal region, XerD interacts with XerC via its
CC       C-terminal region and so on. {ECO:0000255|HAMAP-Rule:MF_01808}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01808}.
CC   -!- SIMILARITY: Belongs to the 'phage' integrase family. XerC subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01808}.
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DR   EMBL; CP000970; ACB19499.1; -; Genomic_DNA.
DR   RefSeq; WP_000130691.1; NC_010498.1.
DR   AlphaFoldDB; B1LLY2; -.
DR   SMR; B1LLY2; -.
DR   EnsemblBacteria; ACB19499; ACB19499; EcSMS35_4177.
DR   GeneID; 66672282; -.
DR   KEGG; ecm:EcSMS35_4177; -.
DR   HOGENOM; CLU_027562_9_0_6; -.
DR   OMA; HSFASHM; -.
DR   Proteomes; UP000007011; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0009037; F:tyrosine-based site-specific recombinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0007049; P:cell cycle; IEA:UniProtKB-KW.
DR   GO; GO:0051301; P:cell division; IEA:UniProtKB-KW.
DR   GO; GO:0007059; P:chromosome segregation; IEA:UniProtKB-UniRule.
DR   GO; GO:0006313; P:transposition, DNA-mediated; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.150.130; -; 1.
DR   Gene3D; 1.10.443.10; -; 1.
DR   HAMAP; MF_01808; Recomb_XerC_XerD; 1.
DR   InterPro; IPR044068; CB.
DR   InterPro; IPR011010; DNA_brk_join_enz.
DR   InterPro; IPR013762; Integrase-like_cat_sf.
DR   InterPro; IPR002104; Integrase_catalytic.
DR   InterPro; IPR010998; Integrase_recombinase_N.
DR   InterPro; IPR004107; Integrase_SAM-like_N.
DR   InterPro; IPR011931; Recomb_XerC.
DR   InterPro; IPR023009; Tyrosine_recombinase_XerC/XerD.
DR   Pfam; PF02899; Phage_int_SAM_1; 1.
DR   Pfam; PF00589; Phage_integrase; 1.
DR   SUPFAM; SSF56349; SSF56349; 1.
DR   TIGRFAMs; TIGR02224; recomb_XerC; 1.
DR   PROSITE; PS51900; CB; 1.
DR   PROSITE; PS51898; TYR_RECOMBINASE; 1.
PE   3: Inferred from homology;
KW   Cell cycle; Cell division; Chromosome partition; Cytoplasm;
KW   DNA integration; DNA recombination; DNA-binding.
FT   CHAIN           1..298
FT                   /note="Tyrosine recombinase XerC"
FT                   /id="PRO_1000187597"
FT   DOMAIN          2..88
FT                   /note="Core-binding (CB)"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01248"
FT   DOMAIN          109..288
FT                   /note="Tyr recombinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01246"
FT   ACT_SITE        148
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        172
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        240
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        243
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        266
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        275
FT                   /note="O-(3'-phospho-DNA)-tyrosine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
SQ   SEQUENCE   298 AA;  33868 MW;  91706E6945752FBA CRC64;
     MTDLHTDVER YLRYLSVERQ LSPITLLNYQ RQLEAIINFA SENGLQSWQQ CDVTMVRNFA
     VRSRRKGLGA ASLALRLSAL RSFFDWLVSQ NELKANPAKG VSAPKAPRHL PKNIDVDDMN
     RLLDIDINDP LAVRDRAMLE VMYGAGLRLS ELVGLDIKHL DLESGEVWVM GKGSKERRLP
     IGRNAVAWIE HWLDLRDLFG SEDDALFLSK LGKRISARNV QKRFAEWGIK QGLNNHVHPH
     KLRHSFATHM LESSGDLRGV QELLGHANLS TTQIYTHLDF QHLASVYDAA HPRAKRGK