ID   MATK_ZAMIT              Reviewed;         514 AA.
AC   Q8MEX4;
DT   17-JAN-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 47.
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   Zamia integrifolia (Coontie) (Zamia floridana).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Cycadidae; Cycadales; Zamiaceae; Zamia.
OX   NCBI_TaxID=3305;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Chaw S.-M., Hu S.-H.;
RT   "Chloroplast matK sequence data reconfirm the monophyly of extant
RT   gymnosperms and the coniferophytic origin of Gnetales.";
RL   Submitted (JUN-2000) to the EMBL/GenBank/DDBJ databases.
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; AF279804; AAK69127.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8MEX4; -.
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..514
FT                   /note="Maturase K"
FT                   /id="PRO_0000143794"
SQ   SEQUENCE   514 AA;  61506 MW;  6386102CC47ADB8A CRC64;
     MDKFQRDGKE YTSRQRRFLY PFLFKEDLYA IAIDHYFNRS SSFEPMENSS SNDRFSFLTV
     KRSISRMRQQ NGSIVPFVNC NQKKLVGYNR SFYSELVLGG LTAVPEVPFS IRSKHSLEGM
     NEWTSFRSIN SIFPLMEDKI PHSNFILDIR IPHLTHPEIL VRTFRRWIQD APFLHSLRFV
     LHEHRNLIIS SNLDQLILIA SKENTRLSLF LWNSYAYECE SLLVPLWKRF SHSRSLPYES
     FVERTPFCRK IEHIIIFSHK YLKKSLWFLK DPSIHYVKYR ERSIIALRGT YLLVKKWRYH
     LTNFWQCHFH LWLQPYRIYI DELSNNCFSF LGYLLSVKMN TSVVRIKMLD DSFITDLITK
     EFDPIAPTTL LIGSLAKEKF CDISGHPISR LAWTGLTDDD ILDRFDRIWR NIFHYYSGSS
     KKDGLYRMKY ILRLPCAKTL ACKHKSAIRV VRERFGSELF TKSFPKERES IFLSFSKTRS
     QRERIWHSDI IQRNPLVNSW WKKHNFQIEP LFDR