MNMA_DESPS
ID MNMA_DESPS Reviewed; 344 AA.
AC Q6AIZ6;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 13-SEP-2004, sequence version 1.
DT 03-AUG-2022, entry version 94.
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=DP2955;
OS Desulfotalea psychrophila (strain LSv54 / DSM 12343).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Desulfobacterales;
OC Desulfocapsaceae; Desulfotalea.
OX NCBI_TaxID=177439;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 12343 / LSv54;
RX PubMed=15305914; DOI=10.1111/j.1462-2920.2004.00665.x;
RA Rabus R., Ruepp A., Frickey T., Rattei T., Fartmann B., Stark M., Bauer M.,
RA Zibat A., Lombardot T., Becker I., Amann J., Gellner K., Teeling H.,
RA Leuschner W.D., Gloeckner F.-O., Lupas A.N., Amann R., Klenk H.-P.;
RT "The genome of Desulfotalea psychrophila, a sulfate-reducing bacterium from
RT permanently cold Arctic sediments.";
RL Environ. Microbiol. 6:887-902(2004).
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; CR522870; CAG37684.1; -; Genomic_DNA.
DR RefSeq; WP_011190196.1; NC_006138.1.
DR AlphaFoldDB; Q6AIZ6; -.
DR SMR; Q6AIZ6; -.
DR STRING; 177439.DP2955; -.
DR EnsemblBacteria; CAG37684; CAG37684; DP2955.
DR KEGG; dps:DP2955; -.
DR eggNOG; COG0482; Bacteria.
DR HOGENOM; CLU_035188_1_0_7; -.
DR OMA; AVCTGHY; -.
DR OrthoDB; 1054741at2; -.
DR Proteomes; UP000000602; 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..344
FT /note="tRNA-specific 2-thiouridylase MnmA"
FT /id="PRO_0000349614"
FT REGION 138..140
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT ACT_SITE 92
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT ACT_SITE 188
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 34
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 116
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT SITE 117
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT SITE 327
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT DISULFID 92..188
FT /note="Alternate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
SQ SEQUENCE 344 AA; 38527 MW; 54E74D375CD14367 CRC64;
MIKNITGIAM SGGVDSTATA ILQKQKGPVL GFFMKLNQPD YETQRDRVSQ IAQKLDIKLE
IIDLTEEFQE YVLKYFSASY FKGLTPNPCI ICNKEIKFGL FQQAILRQGV ERIATGHYAQ
IHKTAAGYQL HKGVDPHKDQ SYFLSRLSQE QLAHSIFPLG GMHKGAIYDL VEAHGFHDFR
GTESQDVCFL EQDNVVDFLE QTAEFSASSG NIVMNDGKIL GKHKGLHRYT VGQRRGLGIS
YPVPLYVINL DVKNNNVIVG ENEQLFHKTM AISDIHWISQ PEREDLLHAS VHIRSTHKGA
QASVILKENN RASVIFDEPQ RAITPGQFAT IYKDTQVLGS GVIL
