ID   YOSQ_BPSPB              Reviewed;         173 AA.
AC   O64175;
DT   24-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1998, sequence version 1.
DT   23-FEB-2022, entry version 63.
DE   RecName: Full=Putative HNH homing endonuclease yosQ;
DE            EC=3.1.-.-;
GN   Name=yosQ;
OS   Bacillus phage SPbeta (Bacillus phage SPBc2) (Bacteriophage SP-beta).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae; Spbetavirus.
OX   NCBI_TaxID=66797;
OH   NCBI_TaxID=1408; Bacillus pumilus (Bacillus mesentericus).
OH   NCBI_TaxID=1423; Bacillus subtilis.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND DISCUSSION OF FUNCTION.
RX   PubMed=9465078; DOI=10.1073/pnas.95.4.1692;
RA   Lazarevic V., Soldo B., Duesterhoeft A., Hilbert H., Maueel C.,
RA   Karamata D.;
RT   "Introns and intein coding sequence in the ribonucleotide reductase genes
RT   of Bacillus subtilis temperate bacteriophage SPbeta.";
RL   Proc. Natl. Acad. Sci. U.S.A. 95:1692-1697(1998).
CC   -!- FUNCTION: A possible homing endonuclease, it is entirely encoded within
CC       the bnrdF intron.
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DR   EMBL; AF020713; AAC13136.1; -; Genomic_DNA.
DR   PIR; T12927; T12927.
DR   RefSeq; NP_046715.1; NC_001884.1.
DR   SMR; O64175; -.
DR   GeneID; 1261396; -.
DR   KEGG; vg:1261396; -.
DR   Proteomes; UP000009091; Genome.
DR   GO; GO:0004519; F:endonuclease activity; IEA:UniProtKB-KW.
DR   GO; GO:0006314; P:intron homing; IEA:UniProtKB-KW.
DR   InterPro; IPR044925; His-Me_finger_sf.
DR   InterPro; IPR003615; HNH_nuc.
DR   Pfam; PF13392; HNH_3; 1.
DR   SMART; SM00507; HNHc; 1.
DR   SUPFAM; SSF54060; SSF54060; 1.
PE   4: Predicted;
KW   Endonuclease; Hydrolase; Intron homing; Nuclease; Reference proteome.
FT   CHAIN           1..173
FT                   /note="Putative HNH homing endonuclease yosQ"
FT                   /id="PRO_0000389009"
SQ   SEQUENCE   173 AA;  20119 MW;  798390FA9B71A2FB CRC64;
     MIRKEVEEAP WWITETGVII SKKLKKPRKT FITPHGYEMI GYTHPKKGTQ NYLVHRLVAK
     YFIYDIPKGM FVNHIDGNKL NNHVRNLEIV TPKENTLHAM KIGLMSGQPG ESNSMSKLTN
     MEATNLIYDL IAGMNNVEAG EKYSLHPRYV SLIRHKRRWK TLWDRIERST TIA