MNMC_BURMS
ID MNMC_BURMS Reviewed; 657 AA.
AC A1V8X2;
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 5-methylaminomethyl-2-thiouridine biosynthesis bifunctional protein MnmC {ECO:0000255|HAMAP-Rule:MF_01102};
DE Short=tRNA mnm(5)s(2)U biosynthesis bifunctional protein {ECO:0000255|HAMAP-Rule:MF_01102};
DE Includes:
DE RecName: Full=tRNA (mnm(5)s(2)U34)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01102};
DE EC=2.1.1.61 {ECO:0000255|HAMAP-Rule:MF_01102};
DE Includes:
DE RecName: Full=FAD-dependent cmnm(5)s(2)U34 oxidoreductase {ECO:0000255|HAMAP-Rule:MF_01102};
DE EC=1.5.-.- {ECO:0000255|HAMAP-Rule:MF_01102};
GN Name=mnmC {ECO:0000255|HAMAP-Rule:MF_01102};
GN OrderedLocusNames=BMASAVP1_A3396;
OS Burkholderia mallei (strain SAVP1).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia; pseudomallei group.
OX NCBI_TaxID=320388;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SAVP1;
RX PubMed=20333227; DOI=10.1093/gbe/evq003;
RA Losada L., Ronning C.M., DeShazer D., Woods D., Fedorova N., Kim H.S.,
RA Shabalina S.A., Pearson T.R., Brinkac L., Tan P., Nandi T., Crabtree J.,
RA Badger J., Beckstrom-Sternberg S., Saqib M., Schutzer S.E., Keim P.,
RA Nierman W.C.;
RT "Continuing evolution of Burkholderia mallei through genome reduction and
RT large-scale rearrangements.";
RL Genome Biol. Evol. 2:102-116(2010).
CC -!- FUNCTION: Catalyzes the last two steps in the biosynthesis of 5-
CC methylaminomethyl-2-thiouridine (mnm(5)s(2)U) at the wobble position
CC (U34) in tRNA. Catalyzes the FAD-dependent demodification of
CC cmnm(5)s(2)U34 to nm(5)s(2)U34, followed by the transfer of a methyl
CC group from S-adenosyl-L-methionine to nm(5)s(2)U34, to form
CC mnm(5)s(2)U34. {ECO:0000255|HAMAP-Rule:MF_01102}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-aminomethyl-2-thiouridine(34) in tRNA + S-adenosyl-L-
CC methionine = 5-methylaminomethyl-2-thiouridine(34) in tRNA + H(+) +
CC S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:19569, Rhea:RHEA-
CC COMP:10195, Rhea:RHEA-COMP:10197, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:74454,
CC ChEBI:CHEBI:74455; EC=2.1.1.61; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01102};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01102};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01102}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the methyltransferase
CC superfamily. tRNA (mnm(5)s(2)U34)-methyltransferase family.
CC {ECO:0000255|HAMAP-Rule:MF_01102}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the DAO family.
CC {ECO:0000255|HAMAP-Rule:MF_01102}.
CC -!- SEQUENCE CAUTION:
CC Sequence=ABM50193.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000526; ABM50193.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_038796362.1; NC_008785.1.
DR AlphaFoldDB; A1V8X2; -.
DR SMR; A1V8X2; -.
DR KEGG; bmv:BMASAVP1_A3396; -.
DR HOGENOM; CLU_022427_1_0_4; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016645; F:oxidoreductase activity, acting on the CH-NH group of donors; IEA:InterPro.
DR GO; GO:0004808; F:tRNA (5-methylaminomethyl-2-thiouridylate)-methyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0002097; P:tRNA wobble base modification; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.150; -; 1.
DR Gene3D; 3.50.50.60; -; 1.
DR HAMAP; MF_01102; MnmC; 1.
DR InterPro; IPR006076; FAD-dep_OxRdtase.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR008471; MnmC-like_methylTransf.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR InterPro; IPR023032; tRNA_MAMT_biosynth_bifunc_MnmC.
DR InterPro; IPR017610; tRNA_S-uridine_synth_MnmC_C.
DR Pfam; PF01266; DAO; 1.
DR Pfam; PF05430; Methyltransf_30; 1.
DR SUPFAM; SSF51905; SSF51905; 1.
DR TIGRFAMs; TIGR03197; MnmC_Cterm; 1.
PE 3: Inferred from homology;
KW Cytoplasm; FAD; Flavoprotein; Methyltransferase; Multifunctional enzyme;
KW Oxidoreductase; S-adenosyl-L-methionine; Transferase; tRNA processing.
FT CHAIN 1..657
FT /note="tRNA 5-methylaminomethyl-2-thiouridine biosynthesis
FT bifunctional protein MnmC"
FT /id="PRO_0000347955"
FT REGION 1..239
FT /note="tRNA (mnm(5)s(2)U34)-methyltransferase"
FT REGION 263..657
FT /note="FAD-dependent cmnm(5)s(2)U34 oxidoreductase"
SQ SEQUENCE 657 AA; 70444 MW; 97AFD89F0309A448 CRC64;
MTDRIVPATL VFREDGTVVS PLYGDIYHSA AGALAQADHV FIRGNGLPER WRHERAFTII
ETGFGTGCNF LATWAAWRAD PSHCERLHFV SVEKHPFARE DLRRAAAHIV AYTTITPIAP
LVDELANAWP ALTPGVHRLE FDDGRVTLTL VFGDALDVLP NLALRAHAFY LDGFAPSKNA
DLWSPAIFKS LAKLADERAT FATYTSSGAV KRALDEAGFA YRKVDGFAGK RAMLVGEFAP
RWRVRRHEPP RAFSTDRRDA IVIGAGLAGC AVVERLAARG WHVTLIERRE RIASEASGNP
AGVFHPMIAR DDNLAARLSR AGFLHALHRW RALERAGHAF SRSTHGLVQL ATSDDEFERM
RESIDALGVP AELASALSRD DARALLRTDV AHGGWLFAQG GSISPATLAA AQCAAAGDRL
SRIVGVEIAR LERGGDGRWR ALDASGATIA QASVVVVANA ADAARIAGLR HAPTQRVRGQ
LTLLPPGSAP AVPLPVIGDG YVVPLANGVT LTGATYEPDD TDATPREAGH RENLERLERL
LPAFSANALD AGALAGRVGF RCVASDRLPL VGELGDEAAA AREAAALTGA RLRDVPRATG
LYGAFGYGSR GLVWAALGAE LIAAQIDGEP WPLERELAEA IDPARFLVRA LRHGRVA
