MNMA_STRS2
ID MNMA_STRS2 Reviewed; 374 AA.
AC A4W4N7;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 02-SEP-2008, sequence version 2.
DT 03-AUG-2022, entry version 78.
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=SSU98_2168;
OS Streptococcus suis (strain 98HAH33).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=391296;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=98HAH33;
RX PubMed=17375201; DOI=10.1371/journal.pone.0000315;
RA Chen C., Tang J., Dong W., Wang C., Feng Y., Wang J., Zheng F., Pan X.,
RA Liu D., Li M., Song Y., Zhu X., Sun H., Feng T., Guo Z., Ju A., Ge J.,
RA Dong Y., Sun W., Jiang Y., Wang J., Yan J., Yang H., Wang X., Gao G.F.,
RA Yang R., Wang J., Yu J.;
RT "A glimpse of streptococcal toxic shock syndrome from comparative genomics
RT of S. suis 2 Chinese isolates.";
RL PLoS ONE 2:E315-E315(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=ABP93326.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000408; ABP93326.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; A4W4N7; -.
DR SMR; A4W4N7; -.
DR KEGG; ssv:SSU98_2168; -.
DR HOGENOM; CLU_035188_1_0_9; -.
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..374
FT /note="tRNA-specific 2-thiouridylase MnmA"
FT /id="PRO_0000349817"
FT REGION 99..101
FT /note="Interaction with target base in tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT REGION 151..153
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT REGION 313..314
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT ACT_SITE 104
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT ACT_SITE 201
FT /note="Cysteine persulfide intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 13..20
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 39
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 128
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT SITE 129
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT SITE 345
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT DISULFID 104..201
FT /note="Alternate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
SQ SEQUENCE 374 AA; 41790 MW; 3428FCA0F6B9DD4A CRC64;
MSIDNSKTRV VVGMSGGVDS SVTALLLKEQ GYDVIGIFMK NWDDTDENGF CTATEDYKDV
AAVADQIGIP YYSVNFEKEY WDRVFEYFLA EYRAGRTPNP DVMCNKEIKF KAFLDYAMNL
GADYVATGHY AQVTRDEDGT VHMLRGADNG KDQTYFLSQL SQEQLQKTMF PLGHLQKPQV
REIAERAGLA TAKKKDSTGI CFIGEKNFKE FLGQYLPAQP GRMMTVDGRD MGEHTGLMYY
TIGQRGGLGI GGQIGGDNEP WFVVGKDLSK NILYVGQGFY HESLMSTSLQ ASQVHFTRDM
PEEFTLECTA KFRYRQPDSQ VTVKVKGDKA EVIFAEPQRA ITPGQAVVFY DGQECLGGGM
IDMAYKDGEA CQYI
