ID   MATK_PORAR              Reviewed;         505 AA.
AC   Q3MKA1;
DT   22-NOV-2005, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2005, sequence version 1.
DT   25-MAY-2022, entry version 37.
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   Portulacaria afra (Elephant's food).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Cactineae; Didiereaceae; Portulacaria.
OX   NCBI_TaxID=86303;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   AGRICOLA=IND43724792;
RA   Edwards E.J., Nyffeler R., Donoghue M.J.;
RT   "Basal cactus phylogeny: implications of Pereskia (Cactaceae) paraphyly for
RT   the transition to the cactus life form.";
RL   Am. J. Bot. 92:1177-1188(2005).
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; AY875368; AAY31011.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3MKA1; -.
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..505
FT                   /note="Maturase K"
FT                   /id="PRO_0000143646"
SQ   SEQUENCE   505 AA;  60042 MW;  2F4E39BE5B26832B CRC64;
     MEFFQRYIEL DRSWQHNFFY PLIFQEYIYG FAYDHGLNKS ILLENADDKK YSLLIVKRLI
     TRMYQQNHLI LAANNSNQND FLGHKHKKNL YYQMISEGFA VIVEIPFSLL LISSLEGKEK
     KIVKSHNLRS IHSVFPFFED KFLHLNYVLE ILIPYPIHLE ILVQTLRYWV KDASALHLLR
     FFLYCNSLIT PSKSISIFSK RNQRLFLFLY NFHVCEYESI FVFLCNQSSH LRSTSFGDLL
     QRIYFYGKLE YLVKVKTFTK DFRIILWLFK DPFLHYVRYR GKSILASKGT SLLMHKWKYY
     LIHFWQCHFS LWSQPRRIYI NRLSKHSLDF MGFFSSVRLN SSVVRSQMVE NAFLIDNTIK
     KFDTIIRIIP LVGSLAKAKF CNVLGHPISK SVWADLLDSD IIDRFGRICR NLSHYYSGSS
     RKKSLYRIKY ILRLSCARTL ARKHKSTVRA FLKTLGSEFL EEFFTEEEKV LSLILPRDSS
     ISRGLYRGPI WYLDIICIHD LANDD