ID   MATK_NICPA              Reviewed;         509 AA.
AC   Q95DR2;
DT   22-NOV-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   25-MAY-2022, entry version 55.
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 paniculata.
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=62141;
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; AB039988; BAB64839.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q95DR2; -.
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_0000143544"
SQ   SEQUENCE   509 AA;  60271 MW;  D27FC653B3F1EC48 CRC64;
     MEEIQRYLQP DRSQQHNFLY PLIFQEYIYA LAHDHGLNRN RSVLLENPGY NNKFSLLIVK
     RLITRMYQQN NFLISTNDSN KNEFLGCNKS LYSQMISEGF AFIVEIPFSL RLISSLSSFE
     GKKIFKSHNL RSIHSTFPFL EDNFSHLNYV LDILIPYPVH LEILVQTLRY WVKDASSLHL
     LRFFLHEFWN LNSLITSKKP GYSFSKKNQR FFFFLYNSYV YECESTFVFL RNQSSRLRST
     SFGALLERIN FYGKMERLVE VFTKDLQVTL WLFKDPFMHY VRYQEKSILA SKGTFLLMNK
     WKFYLVNFWQ CHFSLCFHTG RIHINQLSNH SRDFMGYLSS VRLNPSMLRS QMLENSFLIN
     NAIKKFDTLV PIIPLIGSLA KANFCTVLGH PISKPVWSDL SDSDIIDRFG RICRNLFHYY
     SGSSKKKTLY RIKYILRLSC ARTLARKHKS TVRTFLKRSG SELLEEFLTS EEQVLSLTFP
     RASSSLWGVY RSRIWYLDIF CINDLANYQ