MNMC_BURCC
ID MNMC_BURCC Reviewed; 643 AA.
AC B1K1H7;
DT 02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT 29-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 74.
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=Bcenmc03_0085;
OS Burkholderia cenocepacia (strain MC0-3).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX NCBI_TaxID=406425;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MC0-3;
RA Copeland A., Lucas S., Lapidus A., Barry K., Bruce D., Goodwin L.,
RA Glavina del Rio T., Dalin E., Tice H., Pitluck S., Chain P., Malfatti S.,
RA Shin M., Vergez L., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Tiedje J., Richardson P.;
RT "Complete sequence of chromosome 1 of Burkholderia cenocepacia MC0-3.";
RL Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
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}.
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DR EMBL; CP000958; ACA89265.1; -; Genomic_DNA.
DR RefSeq; WP_012327589.1; NC_010508.1.
DR AlphaFoldDB; B1K1H7; -.
DR SMR; B1K1H7; -.
DR EnsemblBacteria; ACA89265; ACA89265; Bcenmc03_0085.
DR KEGG; bcm:Bcenmc03_0085; -.
DR HOGENOM; CLU_022427_1_0_4; -.
DR OMA; NFLCAWQ; -.
DR Proteomes; UP000002169; Chromosome 1.
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..643
FT /note="tRNA 5-methylaminomethyl-2-thiouridine biosynthesis
FT bifunctional protein MnmC"
FT /id="PRO_0000347951"
FT REGION 1..223
FT /note="tRNA (mnm(5)s(2)U34)-methyltransferase"
FT REGION 247..643
FT /note="FAD-dependent cmnm(5)s(2)U34 oxidoreductase"
SQ SEQUENCE 643 AA; 68624 MW; 542F935078B66235 CRC64;
MPDRLVSATL ALRDDGTLVS PEFGELHRGA SGTLARAHRT FVAGNGLPAR WQRRRTFTIV
TTAFGAGAGF LAAWAAWRDD PARCERLHVV AVEPHPFSRD DLHRAVSHMV ADTTISADVD
ALLDAWPMRV PGLHRLEFDA GRVVLTLAFG DTIDLLKKLV ARADAFFLDG AAASSDGIRA
LAKLAGEHAT FATHAKSDDV KHALGETGFT FREVDDRLVG DYAPRWRARR HEPPRALPVT
TRRAIVIGAG LAGCAVVERL AARGWDVTLI ERHERIASEA SGNPAGVFHP LMTRDDNVAS
RLTRGGFLHA LARWRALERA GHAFSRSTHG MLHLAESADD FARMRDAFDA FGAPSDYATL
LDADAARAHL NLPVAQGGLL FPHGGAVWPA GLCAAQYAAA GERVRLLAST CVARLERRDD
TWHALDDTGA TLADAPVVVL ANAGDAARLA GLRHVALQPV RGQLTLLPPG TTAPLPCPAI
GDGYAVPLDD GTLLIGATFE PDDTDPAMRA AGHAENLDRV RHLLPGLIGA LPDPATLRGR
VAFRWVVGDR LPLIGPLADE TQATANARAL GGAQARDLPR MPGLYGAFGF GSRGLVWAAL
GAELIASQLE GEPWPLEREL ADAVDPARFL IRALRARRVG SAG
