ID   MNMA_RHOCS              Reviewed;         392 AA.
AC   B6ISD0;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-DEC-2008, sequence version 1.
DT   03-AUG-2022, entry version 64.
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=RC1_0938;
OS   Rhodospirillum centenum (strain ATCC 51521 / SW).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Rhodospirillum.
OX   NCBI_TaxID=414684;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51521 / SW;
RA   Touchman J.W., Bauer C., Blankenship R.E.;
RT   "Genome sequence of Rhodospirillum centenum.";
RL   Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
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}.
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DR   EMBL; CP000613; ACI98366.1; -; Genomic_DNA.
DR   RefSeq; WP_012566156.1; NC_011420.2.
DR   AlphaFoldDB; B6ISD0; -.
DR   SMR; B6ISD0; -.
DR   STRING; 414684.RC1_0938; -.
DR   EnsemblBacteria; ACI98366; ACI98366; RC1_0938.
DR   KEGG; rce:RC1_0938; -.
DR   eggNOG; COG0482; Bacteria.
DR   HOGENOM; CLU_035188_0_1_5; -.
DR   OMA; AVCTGHY; -.
DR   OrthoDB; 1054741at2; -.
DR   Proteomes; UP000001591; Chromosome.
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;
KW   Reference proteome; RNA-binding; Transferase; tRNA processing;
KW   tRNA-binding.
FT   CHAIN           1..392
FT                   /note="tRNA-specific 2-thiouridylase MnmA"
FT                   /id="PRO_1000203311"
FT   REGION          158..160
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   ACT_SITE        112
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   ACT_SITE        208
FT                   /note="Cysteine persulfide intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   BINDING         18..25
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   BINDING         44
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   BINDING         136
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   SITE            137
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   SITE            354
FT                   /note="Interaction with tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT   DISULFID        112..208
FT                   /note="Alternate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
SQ   SEQUENCE   392 AA;  41968 MW;  D0138CB359ABAD51 CRC64;
     MNSLGFDKAP QDTRVVVAMS GGVDSSVTAA LLKEQGYDVV GITLQLYDHG LTVGRKGACC
     AGQDIYDARQ VADRIDIPHY VLDYESRFGQ SVIDDFADSY LRGETPIPCV RCNQRVKFRD
     LLAQARDLGA DCLATGHYAR RVAGPTGPAL HRGADPARDQ SYFLFATTPA QLDYLRFPIG
     HLPKSETRAL AERLGLAVAD KPDSQDICFV PAGNYAQVVE KLRPGAVEPG EIVHLDGRVL
     GRHDGVIRYT VGQRRGLGIG GRRTPEGEEL DPLYVVRVEP ETRRVVVGPR TALARDRVLV
     REVNWLGGTD TADVPVTVKL RSAQPALPAR VSLTADGGAV VTLTQPQYGV APGQAAVFYQ
     GDRVLGGGWI VRAEASPALA DAPIPAGAGT AL