ID   MATK_HELAN              Reviewed;         500 AA.
AC   Q1KXX8;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   03-AUG-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   Helianthus annuus (Common sunflower).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; campanulids; Asterales; Asteraceae; Asteroideae;
OC   Heliantheae alliance; Heliantheae; Helianthus.
OX   NCBI_TaxID=4232;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. HA383;
RA   Timme R.E., Kuehl J.V., Boore J.L., Jansen R.K.;
RT   "A comparison of the first two published chloroplast genomes in Asteraceae:
RT   Lactuca and Helianthus.";
RL   Submitted (JAN-2006) 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; DQ383815; ABD47127.1; -; Genomic_DNA.
DR   RefSeq; YP_588098.1; NC_007977.1.
DR   AlphaFoldDB; Q1KXX8; -.
DR   GeneID; 4055638; -.
DR   KEGG; han:4055638; -.
DR   OMA; HICEYEY; -.
DR   OrthoDB; 462131at2759; -.
DR   PhylomeDB; Q1KXX8; -.
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..500
FT                   /note="Maturase K"
FT                   /id="PRO_0000355938"
SQ   SEQUENCE   500 AA;  58854 MW;  09D3B55781BFF6E4 CRC64;
     MEKFQRLDRS HYFLYPLIFQ EYIYVLAHDH GLNGSILLEN AGYDNKSSLL IVKRLIIRMY
     QQNHLILSVN DSKQTAFLGH NKNFYSQVMS EVSSTIMEIP LSLRLISSLE RKGVVKSDNL
     RSIHSIFSFL EDNFSHLNYV LDILIPYPAH LEILVQALRY WIKDASSLHL LRFFLHECHN
     WDSLITSNSK KASSFFSKRN HRLFFFLYTS YVCEYESGFL FLRNQSSHLR STSSGALIER
     IYFYGKIEHL AEVFARTFQA NLWFFKDSFM HYVRYQGKSI LASKGTFLLM NKRKDYFFNF
     WKSYFYLWSY PGRISINQLS NHSLDFLGYR SSVRLKPSMV RGQMLENTFL INNAIKKFDS
     IVPIMPLVGS LAKSKFCNAL GHPIGKAIWA DLSDSDIIER FGRIYRNLSH YHSGSSKKKS
     LYRVKYILRL SCARTLARKH KSTVRAFLKR FGSQLLEEFF TEEEQVFSLT FPRVSSISRR
     LSRRRIWYLD IVCINDLANH