ID   MATK_PSINU              Reviewed;         503 AA.
AC   Q8WI35;
DT   25-MAR-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   25-MAY-2022, entry version 52.
DE   RecName: Full=Maturase K {ECO:0000255|HAMAP-Rule:MF_01390};
DE   AltName: Full=Intron maturase {ECO:0000255|HAMAP-Rule:MF_01390};
GN   Name=matK {ECO:0000255|HAMAP-Rule:MF_01390};
OS   Psilotum nudum (Whisk fern) (Lycopodium nudum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Polypodiopsida; Ophioglossidae; Psilotales; Psilotaceae; Psilotum.
OX   NCBI_TaxID=3240;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Kingyoku;
RX   PubMed=15240838; DOI=10.1093/molbev/msh203;
RA   Nishiyama T., Wolf P.G., Kugita M., Sinclair R.B., Sugita M., Sugiura C.,
RA   Wakasugi T., Yamada K., Yoshinaga K., Yamaguchi K., Ueda K., Hasebe M.;
RT   "Chloroplast phylogeny indicates that bryophytes are monophyletic.";
RL   Mol. Biol. Evol. 21:1813-1819(2004).
CC   -!- FUNCTION: Usually encoded in the trnK tRNA gene intron. Probably
CC       assists in splicing its own and other chloroplast group II introns.
CC       {ECO:0000255|HAMAP-Rule:MF_01390}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the intron maturase 2 family. MatK subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01390}.
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DR   EMBL; AP004638; BAB84196.1; -; Genomic_DNA.
DR   RefSeq; NP_569609.1; NC_003386.1.
DR   AlphaFoldDB; Q8WI35; -.
DR   GeneID; 2545113; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-KW.
DR   GO; GO:0008380; P:RNA splicing; IEA:UniProtKB-UniRule.
DR   GO; GO:0008033; P:tRNA processing; IEA:UniProtKB-KW.
DR   HAMAP; MF_01390; MatK; 1.
DR   InterPro; IPR024937; Domain_X.
DR   InterPro; IPR002866; Maturase_MatK.
DR   InterPro; IPR024942; Maturase_MatK_N.
DR   PANTHER; PTHR34811; PTHR34811; 1.
DR   Pfam; PF01348; Intron_maturas2; 1.
DR   Pfam; PF01824; MatK_N; 1.
PE   3: Inferred from homology;
KW   Chloroplast; mRNA processing; Plastid; RNA-binding; tRNA processing.
FT   CHAIN           1..503
FT                   /note="Maturase K"
FT                   /id="PRO_0000143657"
SQ   SEQUENCE   503 AA;  59831 MW;  68F2F6F87AD0DAFD CRC64;
     MRTINKILDK IGKVQKGKSL LWQLYPLLFR EDLYAIAYNR SSSELSLKSM KHRDSSDRYS
     LVIIKRLINR IRNQTTSKLL FQGSDRKNLK INRSLFEGLT VLFEMIIPVE SRPLVQYQSE
     WNSLQSIHSI FLFMEDRFFY SNSILGLKIP YYFHPEMIIR LFRRRIKDVF LLHLVRLLFH
     NYQNPFVPET SLFYSLKDSQ KRLSILLRNH YFYEFENQLV PLWKRFVQLQ SLSHRFLMDQ
     TNPLYKMKHG LGSLQPFLSE INLLETPCIH YVRYENHSII AFKGTKSIVN KWIKYLVGFW
     QYNYHYWLQP CQIDIRRPSR RCFSFMGYIL GFRSRMIKVH TKRIDESSTT HCIIKEFCAS
     IPTSSLIESL TREGFCDSSG RPVGRSTWTI LKDDDILNKY HQIWGDLSCY YSGSFSRDGL
     WRAKYILQLS CAKTLAQKHK STTRVVRNHF GLKFITTLNS VKNPFFIGSQ EYSHRKNFWC
     LDIIRMNSLV NLINMKKESL SSS