ID   MATK_NICTO              Reviewed;         509 AA.
AC   Q70D40; Q33C58;
DT   21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   25-MAY-2022, entry version 57.
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   Nicotiana tomentosiformis (Tobacco).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4098;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=15324840; DOI=10.1016/j.ympev.2004.05.002;
RA   Clarkson J.J., Knapp S., Garcia V.F., Olmstead R.G., Leitch A.R.,
RA   Chase M.W.;
RT   "Phylogenetic relationships in Nicotiana (Solanaceae) infered from multiple
RT   plastid regions.";
RL   Mol. Phylogenet. Evol. 33:75-90(2004).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16435119; DOI=10.1007/s00438-005-0092-6;
RA   Yukawa M., Tsudzuki T., Sugiura M.;
RT   "The chloroplast genome of Nicotiana sylvestris and Nicotiana
RT   tomentosiformis: complete sequencing confirms that the Nicotiana sylvestris
RT   progenitor is the maternal genome donor of Nicotiana tabacum.";
RL   Mol. Genet. Genomics 275:367-373(2006).
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; AJ585847; CAE51488.1; -; Genomic_DNA.
DR   EMBL; AB240139; BAE47977.1; -; Genomic_DNA.
DR   RefSeq; YP_398839.1; NC_007602.1.
DR   AlphaFoldDB; Q70D40; -.
DR   GeneID; 3776345; -.
DR   KEGG; nto:3776345; -.
DR   OrthoDB; 462131at2759; -.
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..509
FT                   /note="Maturase K"
FT                   /id="PRO_0000143549"
SQ   SEQUENCE   509 AA;  60158 MW;  1017F4A7C2648CAD CRC64;
     MEEIQRYLQP DRSQQHNFLY PLIFQEYIYA LAHDHGLNRN RSILLENPGY NNKLSFLIVK
     RLITRMYQQN HFLISTNDSN KNEFLGCNKS LYSQMISEGF AFIVEIPFSL RLISSLSSFE
     GKKIFKSHNL RSIHSTFPFL EDNFSHLNYV LDILIPYPVH LEILVQTLRY WVKDASSLHL
     LRFFLHEYWN LNSLITSKKP GYSFSKKKQR FFFFLYNSYV YECESTFVFL RNQSSHLRST
     SFGALLERIY FYGKIERLIE VFAKDFQVTL CLFKDPFMHY VRYQGKSILA SKGTFLLMNK
     WKFYLVNFWQ CHFSLCFHTG RIHINQLSNH SRDFMGYLSS VRLNSSMVRS QMLENSFLIN
     NAIKKFDTLV PIIPLIGSLA KANFCTVLGH PISKPVWSDL SDSDIIDRFG RICKNLFHYY
     SGSSKKKTLY RIKYILRLSC ARTLARKHKS TVRAFLKRSG SELLEEFLTS EEQVLSLTFP
     RASSNLWGVY RSRIWYLDIF CINDLANYQ