ID   AI1_USTMA               Reviewed;         121 AA.
AC   Q0H8X7;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   03-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 50.
DE   RecName: Full=Probable intron-encoded DNA endonuclease aI1;
DE            EC=3.1.-.-;
GN   Name=aI1;
OS   Ustilago maydis (strain 521 / FGSC 9021) (Corn smut fungus).
OG   Mitochondrion.
OC   Eukaryota; Fungi; Dikarya; Basidiomycota; Ustilaginomycotina;
OC   Ustilaginomycetes; Ustilaginales; Ustilaginaceae; Ustilago.
OX   NCBI_TaxID=237631;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=521 / FGSC 9021;
RA   Kennell J.C., Boehmer C.;
RT   "Annotation of mitochondrial genome of Ustilago maydis and comparative
RT   analysis of basidiomycete mtDNAs.";
RL   Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=521 / FGSC 9021;
RX   PubMed=17080091; DOI=10.1038/nature05248;
RA   Kaemper J., Kahmann R., Boelker M., Ma L.-J., Brefort T., Saville B.J.,
RA   Banuett F., Kronstad J.W., Gold S.E., Mueller O., Perlin M.H.,
RA   Woesten H.A.B., de Vries R., Ruiz-Herrera J., Reynaga-Pena C.G.,
RA   Snetselaar K., McCann M., Perez-Martin J., Feldbruegge M., Basse C.W.,
RA   Steinberg G., Ibeas J.I., Holloman W., Guzman P., Farman M.L.,
RA   Stajich J.E., Sentandreu R., Gonzalez-Prieto J.M., Kennell J.C., Molina L.,
RA   Schirawski J., Mendoza-Mendoza A., Greilinger D., Muench K., Roessel N.,
RA   Scherer M., Vranes M., Ladendorf O., Vincon V., Fuchs U., Sandrock B.,
RA   Meng S., Ho E.C.H., Cahill M.J., Boyce K.J., Klose J., Klosterman S.J.,
RA   Deelstra H.J., Ortiz-Castellanos L., Li W., Sanchez-Alonso P.,
RA   Schreier P.H., Haeuser-Hahn I., Vaupel M., Koopmann E., Friedrich G.,
RA   Voss H., Schlueter T., Margolis J., Platt D., Swimmer C., Gnirke A.,
RA   Chen F., Vysotskaia V., Mannhaupt G., Gueldener U., Muensterkoetter M.,
RA   Haase D., Oesterheld M., Mewes H.-W., Mauceli E.W., DeCaprio D., Wade C.M.,
RA   Butler J., Young S.K., Jaffe D.B., Calvo S.E., Nusbaum C., Galagan J.E.,
RA   Birren B.W.;
RT   "Insights from the genome of the biotrophic fungal plant pathogen Ustilago
RT   maydis.";
RL   Nature 444:97-101(2006).
CC   -!- FUNCTION: Mitochondrial DNA endonuclease involved in intron homing.
CC       {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion.
CC   -!- MISCELLANEOUS: Encoded within intron 1 of COX1.
CC   -!- SIMILARITY: Belongs to the LAGLIDADG endonuclease family.
CC       {ECO:0000305}.
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DR   EMBL; DQ157700; AAZ67029.1; -; Genomic_DNA.
DR   EMBL; AACP01000277; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   RefSeq; YP_762695.1; NC_008368.1.
DR   AlphaFoldDB; Q0H8X7; -.
DR   SMR; Q0H8X7; -.
DR   GeneID; 4308276; -.
DR   InParanoid; Q0H8X7; -.
DR   Proteomes; UP000000561; Mitochondrion.
DR   GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
DR   GO; GO:0004519; F:endonuclease activity; IEA:UniProtKB-KW.
DR   GO; GO:0006314; P:intron homing; IEA:UniProtKB-KW.
DR   Gene3D; 3.10.28.10; -; 1.
DR   InterPro; IPR027434; Homing_endonucl.
DR   InterPro; IPR004860; LAGLIDADG_2.
DR   Pfam; PF00961; LAGLIDADG_1; 1.
DR   SUPFAM; SSF55608; SSF55608; 1.
PE   3: Inferred from homology;
KW   Endonuclease; Hydrolase; Intron homing; Mitochondrion; Nuclease;
KW   Reference proteome.
FT   CHAIN           1..121
FT                   /note="Probable intron-encoded DNA endonuclease aI1"
FT                   /id="PRO_0000271152"
SQ   SEQUENCE   121 AA;  14036 MW;  34AC197DA594C701 CRC64;
     MEKERIELRL DYVLNSGKKT GKSYESILKL IAETFGVQLT TTIHNRNISY YLIAITSPAK
     LAILINYLNE YSLFTSKYLN FQDFSNCVNM MLNKEHLTIS GREKITILKE SMNNKRTYGI
     I