ID   MATK_STAPU              Reviewed;         565 AA.
AC   Q32RZ3;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 47.
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   Staurastrum punctulatum (Green alga) (Cosmoastrum punctulatum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Zygnemophyceae; Zygnematophycidae;
OC   Desmidiales; Desmidiaceae; Staurastrum.
OX   NCBI_TaxID=102822;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16236178; DOI=10.1186/1741-7007-3-22;
RA   Turmel M., Otis C., Lemieux C.;
RT   "The complete chloroplast DNA sequences of the charophycean green algae
RT   Staurastrum and Zygnema reveal that the chloroplast genome underwent
RT   extensive changes during the evolution of the Zygnematales.";
RL   BMC Biol. 3:22-22(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; AY958085; AAX45768.1; -; Genomic_DNA.
DR   RefSeq; YP_636383.1; NC_008116.1.
DR   AlphaFoldDB; Q32RZ3; -.
DR   GeneID; 4108562; -.
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..565
FT                   /note="Maturase K"
FT                   /id="PRO_0000355963"
SQ   SEQUENCE   565 AA;  68880 MW;  C6CF4446C91CAECF CRC64;
     MKDSREKLIK RFLCAKTNTK IVNQENKLYY FFLHEDLYPI IFQNTDSSFG KFSSVFRKTN
     IKKNHRESFL TIKSCIFLFR SNNFSGRKRS FFSNTRFHDQ KKKENFLPLP KKVIFSLFFE
     SITFILLCNQ KKSDFEKQFF QTKDLSISIQ KPLASLERQW QYDSFGFQGC FSYFFHPEVV
     LRILRKKFQD ISFLHLLRKF LHLNVYLSNN TVKEVPTNNI RTILWNIYFL EIDSFFVSIC
     KNYCISDEIN NVSSNYSLSC FEKIQEWTYF VEKQEYKDFF EKKLYPYEIF DTITIRNSEE
     RRLEQSIKRQ ISFLDQSKIY KYFRTNTNWF IFFQKQKPEN ILLKRWIILF FIRRLGYILQ
     ENTINWTLTF SEYQNELSAY FFLAYILQFP KKKNFVKINT KLFFLVHYFV RRVISFLNPL
     YLIILLLSKQ NFCNSFGYPK SKSGWVTWTD TDIIQNFTRL QNNLFFFYSG CTNTKALARI
     HYILHFSCVK TLACKHKTNL RYIYKKFGTN LTRKDFTTKI FVTNQSKNFR LRSLWKNQKM
     TRVWNFRLTQ LNSLIFHLET FYRLR