ID   MATK_HUPLU              Reviewed;         532 AA.
AC   Q5SCW7;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 2.
DT   25-MAY-2022, entry version 51.
DE   RecName: Full=Maturase K;
DE   AltName: Full=Intron maturase;
GN   Name=matK;
OS   Huperzia lucidula (Shining clubmoss) (Lycopodium lucidulum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Lycopodiopsida; Lycopodiales; Lycopodiaceae; Huperzioideae; Huperzia.
OX   NCBI_TaxID=37429;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=15788152; DOI=10.1016/j.gene.2005.01.018;
RA   Wolf P.G., Karol K.G., Mandoli D.F., Kuehl J.V., Arumuganathan K.,
RA   Ellis M.W., Mishler B.D., Kelch D.G., Olmstead R.G., Boore J.L.;
RT   "The first complete chloroplast genome sequence of a lycophyte, Huperzia
RT   lucidula (Lycopodiaceae).";
RL   Gene 350:117-128(2005).
CC   -!- FUNCTION: Usually encoded in the trnK tRNA gene intron. Probably
CC       assists in splicing its own and other chloroplast group II introns (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the intron maturase 2 family. MatK subfamily.
CC       {ECO:0000305}.
CC   -!- CAUTION: The start codon has not been identified for this gene.
CC       {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAT80733.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AY660566; AAT80733.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; YP_209537.1; NC_006861.1.
DR   AlphaFoldDB; Q5SCW7; -.
DR   GeneID; 3283838; -.
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..532
FT                   /note="Maturase K"
FT                   /id="PRO_0000363782"
SQ   SEQUENCE   532 AA;  63605 MW;  5683C41C972145D9 CRC64;
     MAKTLFVFTS FPRGYSRNCL QSFFKKKELG PKKIDDSSLN NHFSFITRKR LISKIRQQNL
     LETLALWINK YLSGGGHNKK NQSFDYCINY YFESIREVLT SVLQIVQLQP LLEEINELNS
     FQSIHSIFPS MEDHFSHRHH FSDIKIPYFI HPEILIRIFR RRIQDAPFSH LLRFVFYEYQ
     NIIVLDKSIP LSWKEISKLS TFLWNYYVHE FESTLVSLWK RTFHFNSFPY GALLDRTQSI
     RKVKHIEKLP HFKKSPRIII LSGNIPLCVK KYSIHYVRYE NNLMIALKGT KFLVHKWKCY
     IIRFWQYYFH CWFKPCRVSP RESSKECLTF LGYILGIRPQ IIVVQAKMIN NLPITSIISK
     ELCAIIPVFH SIKLLAREKF CNTLGHPIGK LAWTTSEDDD IPNQFNHIWK NIFYYYSGCL
     NRNGLYQIQY ILRFSCAKTL ACKHKSTIRV VWKKYGSRRL FPRYSSYKER ESPFLSRVYS
     HKKRFWYLDV IQVDFIADSL QKGRIPEFKT NFTNKKLIKQ LPEQTQYDSV IL