ID   XERC_ALKHC              Reviewed;         303 AA.
AC   Q9KA25;
DT   22-AUG-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   25-MAY-2022, entry version 116.
DE   RecName: Full=Tyrosine recombinase XerC {ECO:0000255|HAMAP-Rule:MF_01808};
GN   Name=xerC {ECO:0000255|HAMAP-Rule:MF_01808}; OrderedLocusNames=BH2465;
OS   Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
CC   -!- FUNCTION: Site-specific tyrosine recombinase, which acts by catalyzing
CC       the cutting and rejoining of the recombining DNA molecules. The XerC-
CC       XerD complex is essential to convert dimers of the bacterial chromosome
CC       into monomers to permit their segregation at cell division. It also
CC       contributes to the segregational stability of plasmids.
CC       {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. {ECO:0000255|HAMAP-
CC       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; BA000004; BAB06184.1; -; Genomic_DNA.
DR   PIR; A83958; A83958.
DR   AlphaFoldDB; Q9KA25; -.
DR   SMR; Q9KA25; -.
DR   STRING; 272558.10175085; -.
DR   EnsemblBacteria; BAB06184; BAB06184; BAB06184.
DR   KEGG; bha:BH2465; -.
DR   eggNOG; COG4974; Bacteria.
DR   HOGENOM; CLU_027562_9_0_9; -.
DR   OMA; QAFWYLI; -.
DR   Proteomes; UP000001258; 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; IPR011932; Recomb_XerD.
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   TIGRFAMs; TIGR02225; recomb_XerD; 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; Reference proteome.
FT   CHAIN           1..303
FT                   /note="Tyrosine recombinase XerC"
FT                   /id="PRO_0000095283"
FT   DOMAIN          3..89
FT                   /note="Core-binding (CB)"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01248"
FT   DOMAIN          110..297
FT                   /note="Tyr recombinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01246"
FT   ACT_SITE        150
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        174
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        249
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        252
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        275
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
FT   ACT_SITE        284
FT                   /note="O-(3'-phospho-DNA)-tyrosine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01808"
SQ   SEQUENCE   303 AA;  35035 MW;  D10EA8AAFE1D6705 CRC64;
     MEIQNDQWVS AFLLYLKMEK NHSPHTIVNY ELDLRHFRDF MEQQSIPSFA AVSYAFVRHY
     LTVLYEQEYA RSTVSRKLST LRSFYQFLVR EKWVMENPFL LAHTPKGVKK LPSFLYEEEM
     EQLLDALNGD SPLQLRNRAL FETIYASGLR VSECCGLKLQ DVDLSIGTVF VFGKGRKERY
     VPIGSFACDA IQEYIENGRE KLLKKSKSVD LPGDLFLNYR GGPLTERGVR KILHQALDQA
     ALSTRVSPHS LRHSFATHLL NNGADLRVVQ DLLGHENLST TQVYTHVTKD RLRDVYRTHH
     PRA