ID   XERD_ALKHC              Reviewed;         299 AA.
AC   Q9KCP0;
DT   22-AUG-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 118.
DE   RecName: Full=Tyrosine recombinase XerD {ECO:0000255|HAMAP-Rule:MF_01807};
GN   Name=xerD {ECO:0000255|HAMAP-Rule:MF_01807}; OrderedLocusNames=BH1529;
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_01807}.
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_01807}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01807}.
CC   -!- SIMILARITY: Belongs to the 'phage' integrase family. XerD subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01807}.
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DR   EMBL; BA000004; BAB05248.1; -; Genomic_DNA.
DR   PIR; A83841; A83841.
DR   RefSeq; WP_010897694.1; NC_002570.2.
DR   AlphaFoldDB; Q9KCP0; -.
DR   SMR; Q9KCP0; -.
DR   STRING; 272558.10174146; -.
DR   EnsemblBacteria; BAB05248; BAB05248; BAB05248.
DR   KEGG; bha:BH1529; -.
DR   eggNOG; COG4974; Bacteria.
DR   HOGENOM; CLU_027562_9_6_9; -.
DR   OMA; HSFASHM; -.
DR   OrthoDB; 745068at2; -.
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   HAMAP; MF_01807; Recomb_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..299
FT                   /note="Tyrosine recombinase XerD"
FT                   /id="PRO_0000095370"
FT   DOMAIN          2..89
FT                   /note="Core-binding (CB)"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01248"
FT   DOMAIN          110..293
FT                   /note="Tyr recombinase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01246"
FT   ACT_SITE        150
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01807"
FT   ACT_SITE        174
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01807"
FT   ACT_SITE        245
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01807"
FT   ACT_SITE        248
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01807"
FT   ACT_SITE        271
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01807"
FT   ACT_SITE        280
FT                   /note="O-(3'-phospho-DNA)-tyrosine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01807"
SQ   SEQUENCE   299 AA;  34298 MW;  BA728EF91E8BF47A CRC64;
     METVNNNLQQ FLHFQKVERG LSNNTIQSYG RDLKQYIQYV ERVEEIRSAR NITRETILHY
     LYHLREQGRA ETSIARAVAA IRSFHQFLLR EKLSDSDPTV HVEIPKATKR LPKALTIEEV
     EALLNSPQGR DPFSLRNKAM LELLYATGMR VSELIGLTLS DIHLSMGFVR CLGKGNKERI
     IPIGQVATEA VESYLANGRG KLMKKQSHDH VFVNHHGRPL SRQGFWKMLK QLAKNVNIDK
     PLTPHTLRHS FATHLLENGA DLRAVQEMLG HADISTTQIY THVTKTRMRD VYAHFHPRA