ID   MATK_ACOCL              Reviewed;         511 AA.
AC   Q9GHG9; Q3V553;
DT   22-FEB-2003, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 2.
DT   25-MAY-2022, entry version 56.
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   Acorus calamus (Sweet flag).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Acoraceae; Acorus.
OX   NCBI_TaxID=4465;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Fuse S., Tamura M.N.;
RT   "A phylogenetic analysis of the plastid matK gene with emphasis on
RT   Melanthiaceae sensu lato.";
RL   Plant Biol. 2:415-427(2000).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=15930156; DOI=10.1093/molbev/msi173;
RA   Goremykin V.V., Holland B., Hirsch-Ernst K.I., Hellwig F.H.;
RT   "Analysis of Acorus calamus chloroplast genome and its phylogenetic
RT   implications.";
RL   Mol. Biol. Evol. 22:1813-1822(2005).
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; AB040154; BAB16762.1; -; Genomic_DNA.
DR   EMBL; AJ879453; CAI53775.1; -; Genomic_DNA.
DR   RefSeq; YP_319746.1; NC_007407.1.
DR   AlphaFoldDB; Q9GHG9; -.
DR   GeneID; 3677515; -.
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..511
FT                   /note="Maturase K"
FT                   /id="PRO_0000143205"
FT   CONFLICT        70
FT                   /note="Q -> K (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        135
FT                   /note="A -> T (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        254
FT                   /note="G -> V (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        265
FT                   /note="K -> N (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        296
FT                   /note="H -> D (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        315
FT                   /note="D -> H (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        327
FT                   /note="Q -> R (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        331
FT                   /note="H -> R (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        381
FT                   /note="A -> V (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        466
FT                   /note="E -> D (in Ref. 1; BAB16762)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   511 AA;  60627 MW;  D3326AA2957C39D1 CRC64;
     MEEFKVYFEK DGSRQQYFLY PLLFQEYIYA LAHNHVLNGL IFYESSENFV YDNKFSLIIV
     KRLITQMYQQ NSLSNLVNDS NRNRLVRQNK NFYYQTILEG FSVIMEIPFS IIFLSSVEEK
     KAKIPKIQNL RSIHATFPFL EDKLSHLNHV SDILIPYPIH LEILVQVLQG WIQDVPSLHL
     LRFFLHEFHN WNSLITPKKS ISFLFSKGNQ RLFLFLYNSY VFECESALVF LRKQSFYLRS
     TSFGTFVERT HFYGKIEHIV VVRRKNFQKA LSLFKDPFIH YIRYKGKSIL ASKGTHFLMK
     KWKYHLLNFW QCHFDFWSQP HRIHINQLSN HSFYFMGYLS SVRINFSTVR SQMLESSFLM
     DTPTKKFDTI VPIIPLIGSL AKAKFCNVSG HPVSKPVWAD LSDADIIDRF GRICRNLSHY
     HSGSSKKQSL YRVKYILRLS CARTLARKHK STVRAFFKRL GSEFLEEFFT DKEQVLSLIF
     PSLRSPSHRV HKGERIWYLD IIRINDLVNN S