ID MNMA_CLOBB Reviewed; 361 AA.
AC B2THM7;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-2008, sequence version 1.
DT 27-MAR-2024, entry version 86.
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=CLL_A1171;
OS Clostridium botulinum (strain Eklund 17B / Type B).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=935198;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Eklund 17B / Type B;
RA Brinkac L.M., Brown J.L., Bruce D., Detter C., Munk C., Smith L.A.,
RA Smith T.J., Sutton G., Brettin T.S.;
RT "Complete sequence of Clostridium botulinum strain Eklund.";
RL Submitted (APR-2008) 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; CP001056; ACD22606.1; -; Genomic_DNA.
DR AlphaFoldDB; B2THM7; -.
DR SMR; B2THM7; -.
DR KEGG; cbk:CLL_A1171; -.
DR PATRIC; fig|935198.13.peg.1116; -.
DR HOGENOM; CLU_035188_0_0_9; -.
DR Proteomes; UP000001195; 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; Adenine nucleotide alpha hydrolases-like domains; 1.
DR Gene3D; 3.40.50.620; HUPs; 1.
DR Gene3D; 2.40.30.10; Translation factors; 1.
DR HAMAP; MF_00144; tRNA_thiouridyl_MnmA; 1.
DR InterPro; IPR046885; MnmA-like_C.
DR InterPro; IPR046884; MnmA-like_central.
DR InterPro; IPR023382; MnmA-like_central_sf.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR InterPro; IPR004506; tRNA-specific_2-thiouridylase.
DR NCBIfam; TIGR00420; trmU; 1.
DR PANTHER; PTHR11933:SF5; MITOCHONDRIAL TRNA-SPECIFIC 2-THIOURIDYLASE 1; 1.
DR PANTHER; PTHR11933; TRNA 5-METHYLAMINOMETHYL-2-THIOURIDYLATE -METHYLTRANSFERASE; 1.
DR Pfam; PF03054; tRNA_Me_trans; 1.
DR Pfam; PF20258; tRNA_Me_trans_C; 1.
DR Pfam; PF20259; tRNA_Me_trans_M; 1.
DR SUPFAM; SSF52402; Adenine nucleotide alpha hydrolases-like; 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..361
FT /note="tRNA-specific 2-thiouridylase MnmA"
FT /id="PRO_0000349587"
FT REGION 152..154
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT REGION 308..309
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT ACT_SITE 106
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT ACT_SITE 202
FT /note="Cysteine persulfide intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 11..18
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 37
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT BINDING 130
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT SITE 131
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT SITE 341
FT /note="Interaction with tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
FT DISULFID 106..202
FT /note="Alternate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00144"
SQ SEQUENCE 361 AA; 40432 MW; 13CA5AB5AA9EF9DB CRC64;
MGLTKKKVLV GMSGGVDSSV AAYLLKEQGY EVIGATMQIW QEDKEVEERE GGCCSLSAVE
DARRVCDKLD IPFYVLNFRD SFKKKVIEPF IQEYIDGRTP NPCIECNKHL KFDELLRKAQ
GIGVDYIATG HYAKIDKKDD RYMLIRSDDD RKDQTYALYN FTQDQLAHTL MPCGEYTKDR
IREIAKEIGL AVHNKKDSEE ICFISDNDHG KYILNAKPGA VKSGNFVDKS GNILGKHKGI
VYYTIGQRKG LGLSVGRPVF VTDINPKTNE VVIGAEEDIF KTELIAGDLN FITFDKLEKE
IEVEAKIRYS ARPGKATIVP LKDGRVKVVF NEKQRAITKG QSVVFYNGNI VIGGGVIEAI
I
//
