ID   MATK_CHAGL              Reviewed;         508 AA.
AC   Q8MA04;
DT   21-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 42.
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   Chaetosphaeridium globosum (Charophycean green alga) (Herposteiron
OS   globosum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Coleochaetophyceae; Coleochaetales;
OC   Chaetosphaeridiaceae; Chaetosphaeridium.
OX   NCBI_TaxID=96477;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M1311;
RX   PubMed=12161560; DOI=10.1073/pnas.162203299;
RA   Turmel M., Otis C., Lemieux C.;
RT   "The chloroplast and mitochondrial genome sequences of the charophyte
RT   Chaetosphaeridium globosum: insights into the timing of the events that
RT   restructured organelle DNAs within the green algal lineage that led to land
RT   plants.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:11275-11280(2002).
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; AF494278; AAM96588.1; -; Genomic_DNA.
DR   RefSeq; NP_683782.1; NC_004115.1.
DR   AlphaFoldDB; Q8MA04; -.
DR   PRIDE; Q8MA04; -.
DR   GeneID; 860770; -.
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..508
FT                   /note="Maturase K"
FT                   /id="PRO_0000143323"
SQ   SEQUENCE   508 AA;  61481 MW;  696B227371599C00 CRC64;
     MERNKNYYIN VFHKQAENDL NFNKFYFYFF QETFYCLAYK QVSYKFLQNN VFIKKKKKFS
     FFNLKRTIRS MRNQNYKESF FFIEQKKLSK KLLFSKLFYE LLQEILKCIL EISFKIKKNP
     KISSYSTMSS IHGPFISFEE NLIYFPVAIQ SYLPNRVHPE LIVRILRSYN LDVNLFHFLR
     NIVHNGLYIL SPPFLLNFGF RSLSTIFFNI YAYEIDLGFL SFLKLQKDLP QKYQTELDIF
     SSSRKITFYF KNYSDFNNLK KIDQIERKYN NIIDYGPIYY LRYSNILLIS LNLIKKNANF
     FQLIYIRFFH LRFHFLFAKN LVKKISFNQD QIFFLGFLVF FFYTKIQIRI KLKKCLVNFI
     KLEKKICINV PIKLLIIFLS KNGFCDISGN SKSKLSWSVL QDIEIIEKFR RLWLTISGYY
     SGSSNKYCLK IVLYILRYSC AKTLACKHKM SLKKIWKKYT LNLSVTLKFQ TGKKKFLSFS
     HFKDFHKDEK SWQLNLKETN SIVYTFWN