ID   MATK_MAIZE              Reviewed;         513 AA.
AC   P48190;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 3.
DT   03-AUG-2022, entry version 85.
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}; Synonyms=ycf14;
OS   Zea mays (Maize).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC   Panicoideae; Andropogonodae; Andropogoneae; Tripsacinae; Zea.
OX   NCBI_TaxID=4577;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. B73;
RX   PubMed=7666415; DOI=10.1006/jmbi.1995.0460;
RA   Maier R.M., Neckermann K., Igloi G.L., Koessel H.;
RT   "Complete sequence of the maize chloroplast genome: gene content, hotspots
RT   of divergence and fine tuning of genetic information by transcript
RT   editing.";
RL   J. Mol. Biol. 251:614-628(1995).
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   -!- RNA EDITING: Modified_positions=420 {ECO:0000250};
CC   -!- SIMILARITY: Belongs to the intron maturase 2 family. MatK subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01390}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAA60266.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; X86563; CAA60266.1; ALT_SEQ; Genomic_DNA.
DR   PIR; S58532; S58532.
DR   RefSeq; NP_043005.2; NC_001666.2.
DR   AlphaFoldDB; P48190; -.
DR   STRING; 4577.GRMZM5G836994_P01; -.
DR   PaxDb; P48190; -.
DR   PRIDE; P48190; -.
DR   GeneID; 845178; -.
DR   KEGG; zma:845178; -.
DR   MaizeGDB; 118213; -.
DR   eggNOG; ENOG502QWRZ; Eukaryota.
DR   OrthoDB; 462131at2759; -.
DR   Proteomes; UP000007305; Chloroplast.
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; Reference proteome; RNA editing;
KW   RNA-binding; tRNA processing.
FT   CHAIN           1..513
FT                   /note="Maturase K"
FT                   /id="PRO_0000143796"
SQ   SEQUENCE   513 AA;  61149 MW;  608940FDD5D1A193 CRC64;
     MEKFEGYSEK QKSRQHYFVY PLLFQEYIYA FAHDYGLNGS EPVEIFGCNN KKFSSLLVNR
     LIIRMYQQNF LINSVNYPNQ DRLLDHRNYF YSEFYSQILS EGFAIVVEIP LSLGQLSCPE
     EKEIPNFQNL QSIHSIFPFL EDKFLHLHYL SHIKIPYPIH LEILVQLLEY RSQDVPSLHL
     LRFFLYYYSN WNSFITSMKS IFLLKKENKR LFRFLYNSYV SEYEFFLLFL HKQSSCLRLT
     SSGTFLERII FSGKMEHFGV MYPGFFRKTI WFFMDPLMHY VRYQGKAILA SKGTLLLKKK
     WKSYLVNFSQ YFFSFWTQPQ RIRLNQLTNS CFDFLGYLSS VPINTLLVRN QMLENSFLID
     TRMKKFDTTV LATPLVGSLS KAQFCTGSGH PISKPVWTDL SDWDILDRFG RICRNIFHYY
     SGSSKKQTLY RLKYILRLSC ARTLARKHKS TVRTFMQRLG SVFLEEFFTE EEQVFSLMFT
     KTIHFSFHGS HSECIWYLDI IRINDLVNPL TLN