ID   MNMA_FRAT1              Reviewed;         359 AA.
AC   Q14FW2;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-SEP-2008, sequence version 2.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=tRNA-specific 2-thiouridylase MnmA {ECO:0000255|HAMAP-Rule:MF_00144};
DE            EC=2.8.1.13 {ECO:0000255|HAMAP-Rule:MF_00144};
GN   Name=mnmA {ECO:0000255|HAMAP-Rule:MF_00144}; OrderedLocusNames=FTF1677c;
OS   Francisella tularensis subsp. tularensis (strain FSC 198).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=393115;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=FSC 198;
RX   PubMed=17406676; DOI=10.1371/journal.pone.0000352;
RA   Chaudhuri R.R., Ren C.-P., Desmond L., Vincent G.A., Silman N.J.,
RA   Brehm J.K., Elmore M.J., Hudson M.J., Forsman M., Isherwood K.E.,
RA   Gurycova D., Minton N.P., Titball R.W., Pallen M.J., Vipond R.;
RT   "Genome sequencing shows that European isolates of Francisella tularensis
RT   subspecies tularensis are almost identical to US laboratory strain Schu
RT   S4.";
RL   PLoS ONE 2:E352-E352(2007).
CC   -!- FUNCTION: Catalyzes the 2-thiolation of uridine at the wobble position
CC       (U34) of tRNA, leading to the formation of s(2)U34. {ECO:0000255|HAMAP-
CC       Rule:MF_00144}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=AH2 + ATP + S-sulfanyl-L-cysteinyl-[protein] + uridine(34) in
CC         tRNA = 2-thiouridine(34) in tRNA + A + AMP + diphosphate + H(+) + L-
CC         cysteinyl-[protein]; Xref=Rhea:RHEA:47032, Rhea:RHEA-COMP:10131,
CC         Rhea:RHEA-COMP:11726, Rhea:RHEA-COMP:11727, Rhea:RHEA-COMP:11728,
CC         ChEBI:CHEBI:13193, ChEBI:CHEBI:15378, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:29950, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:61963, ChEBI:CHEBI:65315, ChEBI:CHEBI:87170,
CC         ChEBI:CHEBI:456215; EC=2.8.1.13; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00144};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00144}.
CC   -!- SIMILARITY: Belongs to the MnmA/TRMU family. {ECO:0000255|HAMAP-
CC       Rule:MF_00144}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAL09693.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AM286280; CAL09693.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_003022640.1; NC_008245.1.
DR   AlphaFoldDB; Q14FW2; -.
DR   SMR; Q14FW2; -.
DR   KEGG; ftf:FTF1677c; -.
DR   HOGENOM; CLU_035188_1_0_6; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016783; F:sulfurtransferase activity; IEA:InterPro.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006400; P:tRNA modification; IEA:UniProtKB-UniRule.
DR   CDD; cd01998; tRNA_Me_trans; 1.
DR   Gene3D; 2.30.30.280; -; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00144; tRNA_thiouridyl_MnmA; 1.
DR   InterPro; IPR023382; Adenine_a_hdrlase_dom.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR004506; tRNA-specific_2-thiouridylase.
DR   TIGRFAMs; TIGR00420; trmU; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Disulfide bond; Nucleotide-binding; RNA-binding;
KW   Transferase; tRNA processing; tRNA-binding.
FT   CHAIN           1..359
FT                   /note="tRNA-specific 2-thiouridylase MnmA"
FT                   /id="PRO_0000349641"
FT   REGION          95..97
FT                   /note="Interaction with target base in tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   REGION          147..149
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   REGION          309..310
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   ACT_SITE        100
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   ACT_SITE        197
FT                   /note="Cysteine persulfide intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   BINDING         9..16
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   BINDING         35
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   BINDING         124
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   SITE            125
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   SITE            342
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   DISULFID        100..197
FT                   /note="Alternate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
SQ   SEQUENCE   359 AA;  40100 MW;  D5B9432CBD52DA12 CRC64;
     MENKKVIVGI SGGVDSSVSA LLLKQQGYDV TGVFMKNWEE DDTDEFCSAE QDIADAQAVC
     DSIGIPFKKI NFAAEYWDNV FEHFLIEYKA GRTPNPDILC NKEIKFKAFL SYVHLLGGDY
     IATGHYAQTR LAADGSVQLV KGLDDNKDQT YFLYTLGQEQ LRQTIFPIGN IEKSKVREIA
     KENNLVTFDK KDSTGICFIG ERKFKEFLSK YLPAQKGEIH DENGIKIGMH DGLMYYTIGQ
     RQGLGIGGVK DRPEVPWFAA KKDLENNVLI AVQGHDHPLL FKQSLQAIEL SWVAGMAPAD
     KFRCAAKVRY RQKDQSCEVE VNQDGSVNVT FDQPQRAITP GQSVVFYIDD VCLGGGVII