ID A0A250KY86_9GAMM Unreviewed; 329 AA.
AC A0A250KY86;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 25.
DE RecName: Full=tRNA U34 carboxymethyltransferase {ECO:0000256|HAMAP-Rule:MF_01590};
DE EC=2.5.1.- {ECO:0000256|HAMAP-Rule:MF_01590};
GN Name=cmoB {ECO:0000256|HAMAP-Rule:MF_01590};
GN ORFNames=sS8_4622 {ECO:0000313|EMBL:BBA36552.1};
OS Methylocaldum marinum.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Methylococcales;
OC Methylococcaceae; Methylocaldum.
OX NCBI_TaxID=1432792 {ECO:0000313|EMBL:BBA36552.1, ECO:0000313|Proteomes:UP000266313};
RN [1] {ECO:0000313|EMBL:BBA36552.1, ECO:0000313|Proteomes:UP000266313}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=S8 {ECO:0000313|EMBL:BBA36552.1,
RC ECO:0000313|Proteomes:UP000266313};
RA Takeuchi M., Kamagata Y., Hiraoka S., Oshima K., Hattori M., Iwasaki W.;
RT "Genome sequencing of Methylocaldum marinum.";
RL Submitted (DEC-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes carboxymethyl transfer from carboxy-S-adenosyl-L-
CC methionine (Cx-SAM) to 5-hydroxyuridine (ho5U) to form 5-
CC carboxymethoxyuridine (cmo5U) at position 34 in tRNAs.
CC {ECO:0000256|HAMAP-Rule:MF_01590}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-hydroxyuridine(34) in tRNA + carboxy-S-adenosyl-L-methionine
CC = 5-carboxymethoxyuridine(34) in tRNA + H(+) + S-adenosyl-L-
CC homocysteine; Xref=Rhea:RHEA:52848, Rhea:RHEA-COMP:13381, Rhea:RHEA-
CC COMP:13383, ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:134278,
CC ChEBI:CHEBI:136877, ChEBI:CHEBI:136879; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01590};
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_01590}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. CmoB family. {ECO:0000256|HAMAP-Rule:MF_01590}.
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DR EMBL; AP017928; BBA36552.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A250KY86; -.
DR KEGG; mmai:sS8_4622; -.
DR OrthoDB; 9773188at2; -.
DR Proteomes; UP000266313; Chromosome.
DR GO; GO:0008168; F:methyltransferase activity; IEA:UniProtKB-KW.
DR GO; GO:0016765; F:transferase activity, transferring alkyl or aryl (other than methyl) groups; IEA:UniProtKB-UniRule.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0002098; P:tRNA wobble uridine modification; IEA:InterPro.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR HAMAP; MF_01590; tRNA_carboxymethyltr_CmoB; 1.
DR InterPro; IPR010017; CmoB.
DR InterPro; IPR027555; Mo5U34_MeTrfas-like.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR NCBIfam; TIGR00452; tRNA 5-methoxyuridine(34)/uridine 5-oxyacetic acid(34) synthase CmoB; 1.
DR PANTHER; PTHR43464; METHYLTRANSFERASE; 1.
DR PANTHER; PTHR43464:SF92; TRNA U34 CARBOXYMETHYLTRANSFERASE; 1.
DR Pfam; PF08003; Methyltransf_9; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE 3: Inferred from homology;
KW Methyltransferase {ECO:0000313|EMBL:BBA36552.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000266313};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_01590, ECO:0000313|EMBL:BBA36552.1};
KW tRNA processing {ECO:0000256|HAMAP-Rule:MF_01590}.
FT BINDING 97
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 111
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 116
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 136
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 158..160
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 186..187
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 202
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 206
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
FT BINDING 321
FT /ligand="carboxy-S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:134278"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01590"
SQ SEQUENCE 329 AA; 37366 MW; B6AA74B998102479 CRC64;
MLNSQSRLKV YSGLFLASGW PQLRTWLGRL PSQLETAFGS ERHGDWPVWQ AALDRLPRIE
ASKVDLNVDA IFIDGGCGEV HRNLIEDQLR RLHPWRKGPY TIHGIHIDTE WRSDLKWHRL
KDHIQSLEGR TVLDVGCGNG YHAWRMLGCG AELVIGIDPT LLSVAQFMAV KHFAGDFPVY
VLPLGIEDVP PNLRAFDTVF SMGVFYHRRS PFDHLLELKG CLRPGGELVL ETLIIEGEQG
QVLVPEGRYA QMRNVWFIPS CSTLLSWLRR CGYRNVQIVD VTKTTSEEQR STDWMRFQSL
SDFLDPVNPE LTVEGLPAPV RAVFIAESP
//
