ID   MATK_NICOT              Reviewed;         509 AA.
AC   Q70D41; Q95DQ6;
DT   21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   25-MAY-2022, entry version 49.
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 otophora (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=4091;
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).
RN   [2]
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).
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; AB039994; BAB64845.1; -; Genomic_DNA.
DR   EMBL; AJ585846; CAE51487.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q70D41; -.
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_0000143543"
FT   CONFLICT        431
FT                   /note="R -> Q (in Ref. 1; BAB64845)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   509 AA;  60341 MW;  5E88A6955DD4C2E0 CRC64;
     MEEIHRYLQP DRSQQHNFLY PLIFQEYIYA LAHDHGLNRN RSILLENPGY NNKFSFLIVK
     RLITRMYQQN HFFISTNDSN KNSFLGCNKS LYSQMISEGF AFVVEIPFSL RLISSLSSFE
     AKNIFKSHNL RSIHSTFPFL EDNFSHLNYV LDILIPYPVH LEILVQTLRY WVKDASSLHL
     LRFFLHEYWN LNSLITSKKP GYSFSKKNQR FFFFLYNSYV YECESTFVFL RNRSSHLRST
     SFGALLERIY FYVKIERLVE VFAKDFQVTL WLFKDPFMHY VRYQGKSILA SKGTFLLMNK
     WKFYLVNFWQ CHFSLCFHTG RIHINQLSND SRDFMGYLSS VRLNPSMVRS QMLENSFLIN
     NAIKKFDTLV PIIPLIGSLA KANFCTVLGH PISKPVWSDL SDSYIIDRFG RICRNLFHYY
     SGSSKKKTLY RIKYILRLSC ARTLARKHKS TVRAFLKRSG SELLEEFLTS EEQVLSLTFP
     RASSSLWGVY RSRIWYLDIF CINDLANYQ