ID   MATK_POROL              Reviewed;         509 AA.
AC   Q3MKB9;
DT   22-NOV-2005, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2005, sequence version 1.
DT   25-MAY-2022, entry version 40.
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   Portulaca oleracea (Common purslane) (Portulaca neglecta).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Cactineae; Portulacaceae; Portulaca.
OX   NCBI_TaxID=46147;
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; AY875349; AAY30993.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3MKB9; -.
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_0000143645"
SQ   SEQUENCE   509 AA;  60865 MW;  E3839CD368792802 CRC64;
     MEEFQRYIEL DRSWQHNFFY PLIFQEYIYG FAYDHGLNKS ILLENAGDKK YSLLIVKRLI
     TRMYQQNHLI LSDKNSNQND FFGHKHKKNL YYQMISEGFA VIVEIPFSLL LISSLEAKEK
     KIVKSNNLRS IHSIFPFFED KFLHLNYALE ILIPYPIHLE ILVQTLRYWV KDASSLHLLR
     FFLYEYRNCN SLITPPKSIS IFSKSNQRLF LFLYNFHVCE YESLFVFLCN QSSHLRSISF
     GALLERIYFY GKLEYLVKVK TFTKYLRVIL WFFKDPFLHY VRYRGKSILT SKGTSFLMHK
     WKYYLINFWQ SRFSLWSQPR RIYINPLSKH SLDFMGFFSS VRLNSSVVRS QMVENSFLID
     NPIKKFDTIV RIIPLVGSLA KAKFCNVLGH PISKSVWTDL LDSDIIDRFG RICRNLSHYY
     SGSSRKKSLY QIKYILRLSC ARTLARKHKS TVRAFLKRLG SEFLEEFFTE EERILSLILP
     RDSSISRRFY RGPIWYLDIF CIHDLVNDE