ID   TEV3_BPT4               Reviewed;          97 AA.
AC   P39514;
DT   01-FEB-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1995, sequence version 1.
DT   07-OCT-2020, entry version 58.
DE   RecName: Full=Defective intron-associated endonuclease 3;
DE            EC=3.1.-.-;
DE   AltName: Full=I-TevIII;
GN   Name=ITEVIIIR;
OS   Enterobacteria phage T4 (Bacteriophage T4).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Myoviridae; Tevenvirinae; Tequatrovirus.
OX   NCBI_TaxID=10665;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3530746; DOI=10.1002/j.1460-2075.1986.tb04460.x;
RA   Sjoeberg B.-M., Hahne S., Mathews C.Z., Mathews C.K., Rand K.N., Gait M.J.;
RT   "The bacteriophage T4 gene for the small subunit of ribonucleotide
RT   reductase contains an intron.";
RL   EMBO J. 5:2031-2036(1986).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=12626685; DOI=10.1128/mmbr.67.1.86-156.2003;
RA   Miller E.S., Kutter E., Mosig G., Arisaka F., Kunisawa T., Ruger W.;
RT   "Bacteriophage T4 genome.";
RL   Microbiol. Mol. Biol. Rev. 67:86-156(2003).
CC   -!- FUNCTION: This endonuclease is specific to the nrdB gene splice
CC       junction and is involved in intron homing. {ECO:0000250}.
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DR   EMBL; X04140; CAA27758.1; -; Genomic_DNA.
DR   EMBL; AF158101; AAD42523.1; -; Genomic_DNA.
DR   PIR; S08602; S08602.
DR   RefSeq; NP_049842.1; NC_000866.4.
DR   PRIDE; P39514; -.
DR   GeneID; 1258778; -.
DR   KEGG; vg:1258778; -.
DR   Proteomes; UP000009087; Genome.
DR   GO; GO:0004519; F:endonuclease activity; IEA:UniProtKB-KW.
DR   GO; GO:0006314; P:intron homing; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   Endonuclease; Hydrolase; Intron homing; Nuclease; Reference proteome.
FT   CHAIN           1..97
FT                   /note="Defective intron-associated endonuclease 3"
FT                   /id="PRO_0000192795"
SQ   SEQUENCE   97 AA;  11330 MW;  9CD08059375DDA91 CRC64;
     MLTDLYLKIL MEEHKKRTSA KTLEMVKNGT HPAQKEITCD FCGHIGKGPG FYLKHNDRCK
     LNPNRIQLNC PYCDKKDLSP STYKRWHGDN CKTRFND