ID   MATK_ANTMA              Reviewed;         508 AA.
AC   Q8SM20; Q8MC86; Q9TIS9;
DT   22-FEB-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2002, sequence version 1.
DT   25-MAY-2022, entry version 59.
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   Antirrhinum majus (Garden snapdragon).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Lamiales; Plantaginaceae; Antirrhineae; Antirrhinum.
OX   NCBI_TaxID=4151;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   AGRICOLA=IND23289696;
RA   Wolfe A.D., Datwyler S.L., Randle C.P.;
RT   "A phylogenetic and biogeographic analysis of the Cheloneae
RT   (Scrophulariaceae) based on ITS and matK sequence data.";
RL   Syst. Bot. 27:138-148(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=12144762; DOI=10.1016/s1055-7903(02)00240-3;
RA   Bremer B., Bremer K., Heidari N., Erixon P., Olmstead R.G., Anderberg A.A.,
RA   Kallersjo M., Barkhordarian E.;
RT   "Phylogenetics of asterids based on 3 coding and 3 non-coding chloroplast
RT   DNA markers and the utility of non-coding DNA at higher taxonomic levels.";
RL   Mol. Phylogenet. Evol. 24:274-301(2002).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Young N.D., Steiner K.E., dePamphilis C.W.;
RT   "The evolution of parasitism in Scrophulariaceae/Orobanchaceae: a critical
RT   analysis of progressive evolution and transitional forms based on plastid
RT   gene sequences.";
RL   Submitted (MAR-1998) 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; AF375189; AAM19361.1; -; Genomic_DNA.
DR   EMBL; AJ429342; CAD22238.1; -; Genomic_DNA.
DR   EMBL; AF051978; AAF21683.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8SM20; -.
DR   PRIDE; Q8SM20; -.
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_0000143241"
FT   CONFLICT        330
FT                   /note="F -> S (in Ref. 3; AAF21683)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   508 AA;  59946 MW;  A4F4DBFD46373F3B CRC64;
     MEEIQRYLQL DRSQQHDFLY PLIFQEYIYA FAHDRGFGRS ILSENPGYDK KSSLLIVKRL
     ITRMYQQNHF IGSTNDSNQN PFLGRNKNLY YQIISEGFAF IVEIPFSLRL ISSREGKNKK
     IVKSQNLRSI HSIFPFLEDN FSHLNFVLDI LIPYPVHVEV LVQTLRYWVK DASSLHLVRF
     FLNEYCNWNS LILPKKASFS CSKINQRLFL FLYNSHVCEY ESIFVFLRNQ SSHLLSTSSG
     VLLERIYFYG KIECLVNVFV KVKDFQANLW LVKEPCMHYV RYQRKSILAS KGTFLLIKKW
     KCYLMTFWQW HFLLWFQPRR IYINQLSNHF LEFLGYLSNV RMNPAVVRSQ ILENSFLMNN
     SIKKFDTLVP ISPLIASLAK AKFCNVLGHP ISKPVRADLS DSNIIDRFGH ICRNLSHYHS
     GSFKKKSLYR IKYILRLSCA RTLARKHKST VRAFLKRLGS DLLEEFLMSE EDVLSLTFPK
     ASSTLRGGYK SRIWYLDIIY INDLANYK