ID   MNME_CYACA              Reviewed;         465 AA.
AC   Q9TLX6;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Probable tRNA modification GTPase MnmE {ECO:0000255|HAMAP-Rule:MF_00379};
DE            EC=3.6.-.- {ECO:0000255|HAMAP-Rule:MF_00379};
GN   Name=mnmE {ECO:0000255|HAMAP-Rule:MF_00379};
GN   Synonyms=thdF {ECO:0000255|HAMAP-Rule:MF_00379},
GN   trmE {ECO:0000255|HAMAP-Rule:MF_00379};
OS   Cyanidium caldarium (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Cyanidium.
OX   NCBI_TaxID=2771;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RK-1;
RX   PubMed=11040290; DOI=10.1007/s002390010101;
RA   Gloeckner G., Rosenthal A., Valentin K.-U.;
RT   "The structure and gene repertoire of an ancient red algal plastid
RT   genome.";
RL   J. Mol. Evol. 51:382-390(2000).
CC   -!- FUNCTION: Exhibits a very high intrinsic GTPase hydrolysis rate.
CC       Involved in the addition of a carboxymethylaminomethyl (cmnm) group at
CC       the wobble position (U34) of certain tRNAs, forming tRNA-
CC       cmnm(5)s(2)U34. {ECO:0000255|HAMAP-Rule:MF_00379}.
CC   -!- COFACTOR:
CC       Name=K(+); Xref=ChEBI:CHEBI:29103;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00379};
CC       Note=Binds 1 potassium ion per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00379};
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like
CC       GTPase superfamily. TrmE GTPase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00379}.
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DR   EMBL; AF022186; AAF12952.1; -; Genomic_DNA.
DR   RefSeq; NP_045142.1; NC_001840.1.
DR   AlphaFoldDB; Q9TLX6; -.
DR   SMR; Q9TLX6; -.
DR   GeneID; 800118; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006400; P:tRNA modification; IEA:UniProtKB-UniRule.
DR   CDD; cd04164; trmE; 1.
DR   Gene3D; 1.20.120.430; -; 1.
DR   Gene3D; 3.30.1360.120; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00379; GTPase_MnmE; 1.
DR   InterPro; IPR031168; G_TrmE.
DR   InterPro; IPR006073; GTP-bd.
DR   InterPro; IPR018948; GTP-bd_TrmE_N.
DR   InterPro; IPR004520; GTPase_MnmE.
DR   InterPro; IPR027368; MnmE_dom2.
DR   InterPro; IPR025867; MnmE_helical.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   InterPro; IPR027266; TrmE/GcvT_dom1.
DR   Pfam; PF01926; MMR_HSR1; 1.
DR   Pfam; PF12631; MnmE_helical; 1.
DR   Pfam; PF10396; TrmE_N; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00450; mnmE_trmE_thdF; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS51709; G_TRME; 1.
PE   3: Inferred from homology;
KW   Chloroplast; GTP-binding; Hydrolase; Magnesium; Metal-binding;
KW   Nucleotide-binding; Plastid; Potassium; tRNA processing.
FT   CHAIN           1..465
FT                   /note="Probable tRNA modification GTPase MnmE"
FT                   /id="PRO_0000188953"
FT   DOMAIN          221..384
FT                   /note="TrmE-type G"
FT   BINDING         23
FT                   /ligand="(6S)-5-formyl-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57457"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         85
FT                   /ligand="(6S)-5-formyl-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57457"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         124
FT                   /ligand="(6S)-5-formyl-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57457"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         231..236
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         235
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         250..256
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         256
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         275..278
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
FT   BINDING         465
FT                   /ligand="(6S)-5-formyl-5,6,7,8-tetrahydrofolate"
FT                   /ligand_id="ChEBI:CHEBI:57457"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00379"
SQ   SEQUENCE   465 AA;  52004 MW;  81229D1081FC1652 CRC64;
     MYKRDTIAAI ATCPNGGGVS ILRLSGSKSI DVVKTVSLVS SNQCWHSHCI LYGWIKDNED
     QSFVDEVLIL LMMAPRSYTA ENVVEIHCHA SIVLANEILR ILVKQGVRLA KPGEFTMRAF
     LNGRIGLSQV ESVLKVIHSK TIASAKLAAN TLRRGGSERI RRLKHTLSLL LADLEFHIDF
     SDEFIDVDSI EDELRSTIQS SLLDIKDLIS SYNKVSKLNE GTKVCIIGKP NVGKSSLLNA
     IAKRECSIVT NFPGTTRDIV SFETMLGNTL VRLYDTAGIR QSVDEIEKIG ISKTELFVDE
     CQIVFFVLDA IQGLSSEDSV IFNKLNLMNK NFVILINKID KKVQRKIDEI YETLKCSNRR
     IIEVSAIKNI GLEKLNNCIL DLSSKEDFDL PVHFSVNCKY LEILNNIYLI LDELYTGSLN
     KSVTSYDFIA VELRRVLQGL NQITGDEVVE NNVLDAIFSK FCVGK