ID   MATK_ENCAL              Reviewed;         514 AA.
AC   Q8MEY0;
DT   22-FEB-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 46.
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   Encephalartos altensteinii (Altenstein's bread tree) (Eastern Cape giant
OS   cycad).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Cycadidae; Cycadales; Zamiaceae; Encephalartos.
OX   NCBI_TaxID=3300;
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AF279798; AAK69121.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8MEY0; -.
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_0000143372"
SQ   SEQUENCE   514 AA;  61352 MW;  603775375C2B824B CRC64;
     MDKLQRDGKE DTPRQRRFLY PLLFQEDLYA IAYDHYFNRS SSFEPMENSS SNDRFSFLTV
     KRLISRIRQQ NGSIVPFVNC DQTKLVGHNR SFYSELVLGG LTAVPEVPLS IRSKHSLERM
     NEWTSFRSIH SIFPLMEDKI PHSNFILDIR IPHLTHPEIL VRTFRRWIQD APSLHSLRSV
     LHEHRNLIIS SNLDQLILIA SKENTRLSLF LWNYYAYECE SLLVPLWKRF FYSRSLPYES
     FIERTPFYRK IEHIVIFYHK YLKKSLWFLK DPSIHYVKHR ERSIIALRGT YLLAKKWRYH
     ITKFWQCHFH LWPQPYRIYI DELSNNCFSF LGYLLSVKMK TSVVRIKMPD DSFITDLITK
     EFDPIAPTTL LIGSLAKEKF CDISGHPISR LAWTGLTDDD ILDRFDRIWR NIFHYHSGSS
     KKDGLYRMKY ILRLPCAKTL ACKHKSAIRV VRERFGSELF TKSSPKERES IFLSFSKTRS
     QRERIWHSDI IQINPLINSC RKKHNLQIEP LFDR