ID   MATK_ZYGCR              Reviewed;         531 AA.
AC   Q32RL3;
DT   10-FEB-2009, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 44.
DE   RecName: Full=Maturase K;
DE   AltName: Full=Intron maturase;
GN   Name=matK;
OS   Zygnema circumcarinatum (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Zygnemophyceae; Zygnematophycidae;
OC   Zygnematales; Zygnemataceae; Zygnema.
OX   NCBI_TaxID=35869;
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 (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the intron maturase 2 family. MatK subfamily.
CC       {ECO:0000305}.
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DR   EMBL; AY958086; AAX45885.1; -; Genomic_DNA.
DR   RefSeq; YP_636513.1; NC_008117.1.
DR   AlphaFoldDB; Q32RL3; -.
DR   PRIDE; Q32RL3; -.
DR   GeneID; 4108213; -.
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..531
FT                   /note="Maturase K"
FT                   /id="PRO_0000363785"
SQ   SEQUENCE   531 AA;  63500 MW;  370CC86943D2D7B2 CRC64;
     MIGVKQTKRL YAYFLREDLY ITLVQHTKNQ IHATSQTNNF IVPISFFRIK KAITRMRKQH
     NITILKQGNL SDEYQAILQI INVALVYINK PVFSLYVPSF RNQTYPKQFI NNTITGLNQH
     HTNIYNGMFS KRDVSIHSAF LFLENRYHSC NYLLEDKIHY LIHPEIIIRI IRKYVFDVCL
     IHCYRIVFYF IMMHLNRSKQ TFNYSMDQAI LSMRNIYAIE IDSFFADESL KILNQTTYSP
     IWAPYDRSIF HKCTLYEFHV TFKSVLNRKI LKHIIYYSKL SKNKYGLSPI GFYRFGACHY
     LRCNSIWKFA MQANSNFMYL FGFRYMRFIT RRMGAFYFHY VSSVVYDIRS ITKHKIVLLG
     VLVKSDNAVV KIQTQIFQNI LPITYLRIQY IRILSPNHLV IKALYKYQLC TSAGYPLHRY
     SWTTFGNIQI VQRFKVLQHS IIFYYSGCIN RKALSYVKQI LRYSCAKTLA FKHKTTTRNI
     LSTKIDQNVN ILNVFNTKKQ FWLSFELNNI TLNLRVWHLE LFNQYRLMQD D