ID   MATK_NICAL              Reviewed;         509 AA.
AC   Q95DQ2;
DT   21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   25-MAY-2022, entry version 54.
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 alata (Winged tobacco) (Persian 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=4087;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Aoki S., Ito M.;
RT   "Molecular phylogeny of Nicotiana (Solanaceae) based on the nucleotide
RT   sequence of the matK gene.";
RL   Plant Biol. 2:316-324(2000).
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; AB040000; BAB64851.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q95DQ2; -.
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_0000143536"
SQ   SEQUENCE   509 AA;  60184 MW;  0C7A0C91AEF3B35A CRC64;
     MEEIQRYLQP DRSQQHNFLY PLIFQEYIYA LAHDHGLNRN RSILLENPGY NNKLSFLIVK
     RLITRMYQQN HFLISTNDSN KNSFLGCNKS LYSQMISEGF AFIVEIPFSL RLISSLSSFE
     GKKIFKSHNL QSIHSTFPFL EDNFSHLNYV LDILIPYPVH LEILVQTLRY WVKDASSLHL
     LRFFLHEYWN LNSLITSKKP GYSFSKKNQR FFFFLYNSYV YECESTFVFL RNQSSHLRST
     SFGALLERIY FYGKIERLVE VFAKDFQVTL WLFKDPFMHY VRYQGKSILA SKGTFLLMNK
     WKFYLVNFWQ CHFSLCFHTG RIHINQLSNH SRDFMGYLSS VRLNPSMVRS QMLENSFLIN
     NAIKKFDTLV PIIPLIGSLA KANFCTVLGH PISKPVWSDL SDSDIIDRFG RICRNLFHYY
     SGSSKKKTLY RIKYILRLSC ARTLARKHKS TVRTFLKRSG SELLEEFLTS EEQVLSLTFP
     RASSSLWGVY RSRIWYLDIF CINDLANYQ