ID G0VRB8_MEGEL Unreviewed; 331 AA.
AC G0VRB8;
DT 19-OCT-2011, integrated into UniProtKB/TrEMBL.
DT 19-OCT-2011, sequence version 1.
DT 24-JAN-2024, entry version 61.
DE RecName: Full=tRNA(Ile)-lysidine synthase {ECO:0000256|HAMAP-Rule:MF_01161};
DE EC=6.3.4.19 {ECO:0000256|HAMAP-Rule:MF_01161};
DE AltName: Full=tRNA(Ile)-2-lysyl-cytidine synthase {ECO:0000256|HAMAP-Rule:MF_01161};
DE AltName: Full=tRNA(Ile)-lysidine synthetase {ECO:0000256|HAMAP-Rule:MF_01161};
GN Name=tilS {ECO:0000256|HAMAP-Rule:MF_01161};
GN ORFNames=MELS_0140 {ECO:0000313|EMBL:CCC72363.1};
OS Megasphaera elsdenii DSM 20460.
OC Bacteria; Bacillota; Negativicutes; Veillonellales; Veillonellaceae;
OC Megasphaera.
OX NCBI_TaxID=1064535 {ECO:0000313|EMBL:CCC72363.1, ECO:0000313|Proteomes:UP000010111};
RN [1] {ECO:0000313|EMBL:CCC72363.1, ECO:0000313|Proteomes:UP000010111}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 20460 {ECO:0000313|EMBL:CCC72363.1,
RC ECO:0000313|Proteomes:UP000010111};
RX PubMed=21914887; DOI=10.1128/JB.05861-11;
RA Marx H., Graf A.B., Tatto N., Thallinger G.G., Mattanovich D., Sauer M.;
RT "Genome Sequence of the Ruminal Bacterium Megasphaera elsdenii.";
RL J. Bacteriol. 193:5578-5579(2011).
CC -!- FUNCTION: Ligates lysine onto the cytidine present at position 34 of
CC the AUA codon-specific tRNA(Ile) that contains the anticodon CAU, in an
CC ATP-dependent manner. Cytidine is converted to lysidine, thus changing
CC the amino acid specificity of the tRNA from methionine to isoleucine.
CC {ECO:0000256|HAMAP-Rule:MF_01161}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + cytidine(34) in tRNA(Ile2) + L-lysine = AMP +
CC diphosphate + H(+) + lysidine(34) in tRNA(Ile2);
CC Xref=Rhea:RHEA:43744, Rhea:RHEA-COMP:10625, Rhea:RHEA-COMP:10670,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:32551,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:82748, ChEBI:CHEBI:83665,
CC ChEBI:CHEBI:456215; EC=6.3.4.19;
CC Evidence={ECO:0000256|ARBA:ARBA00000047, ECO:0000256|HAMAP-
CC Rule:MF_01161};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_01161}.
CC -!- DOMAIN: The N-terminal region contains the highly conserved SGGXDS
CC motif, predicted to be a P-loop motif involved in ATP binding.
CC {ECO:0000256|HAMAP-Rule:MF_01161}.
CC -!- SIMILARITY: Belongs to the tRNA(Ile)-lysidine synthase family.
CC {ECO:0000256|HAMAP-Rule:MF_01161}.
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DR EMBL; HE576794; CCC72363.1; -; Genomic_DNA.
DR RefSeq; WP_014015109.1; NZ_CP027570.1.
DR AlphaFoldDB; G0VRB8; -.
DR STRING; 1064535.MELS_0140; -.
DR KEGG; med:MELS_0140; -.
DR eggNOG; COG0037; Bacteria.
DR HOGENOM; CLU_018869_0_0_9; -.
DR Proteomes; UP000010111; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016879; F:ligase activity, forming carbon-nitrogen bonds; IEA:UniProtKB-UniRule.
DR GO; GO:0006400; P:tRNA modification; IEA:UniProtKB-UniRule.
DR CDD; cd01992; PP-ATPase; 1.
DR Gene3D; 1.20.59.20; -; 1.
DR Gene3D; 3.40.50.620; HUPs; 1.
DR HAMAP; MF_01161; tRNA_Ile_lys_synt; 1.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR InterPro; IPR011063; TilS/TtcA_N.
DR InterPro; IPR012094; tRNA_Ile_lys_synt.
DR InterPro; IPR012795; tRNA_Ile_lys_synt_N.
DR InterPro; IPR015262; tRNA_Ile_lys_synt_subst-bd.
DR NCBIfam; TIGR02432; lysidine_TilS_N; 1.
DR PANTHER; PTHR43033; TRNA(ILE)-LYSIDINE SYNTHASE-RELATED; 1.
DR PANTHER; PTHR43033:SF1; TRNA(ILE)-LYSIDINE SYNTHASE-RELATED; 1.
DR Pfam; PF01171; ATP_bind_3; 1.
DR Pfam; PF09179; TilS; 1.
DR SUPFAM; SSF52402; Adenine nucleotide alpha hydrolases-like; 1.
DR SUPFAM; SSF82829; MesJ substrate recognition domain-like; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|HAMAP-Rule:MF_01161};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01161};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_01161};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01161};
KW Reference proteome {ECO:0000313|Proteomes:UP000010111};
KW tRNA processing {ECO:0000256|HAMAP-Rule:MF_01161}.
FT DOMAIN 23..200
FT /note="tRNA(Ile)-lysidine/2-thiocytidine synthase N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF01171"
FT DOMAIN 253..312
FT /note="tRNA(Ile)-lysidine synthase substrate-binding"
FT /evidence="ECO:0000259|Pfam:PF09179"
FT BINDING 28..33
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01161"
SQ SEQUENCE 331 AA; 37156 MW; 550D59E668BED733 CRC64;
MNLVERVDAY GRQHDLWQPG RALVVACSGG PDSLALLDIL NRLAPLYRLS LTACYVHHGI
RRAADDEVAL VRQEALRRHC GFAWQYVDVP ALARKEKASE EAVGRRERYR ILRETARACG
ADRIAVAHHA DDQAETVLLH LLRGSGLDGL CGMAPRRGDI IRPLLAVTKA ELTAYAAQRQ
LPVCHDETND SRRYSRNRIR LDLLPQLQQY NPAITADLNR LADIVRADEV FLENAAEALY
QQLALPDGAM PALDKKGLLA QPLAMQRRLI RRLWQEGTGS RQDLPFHYVE TIRDLAAKGA
GKQFQCGRAC VYTTRTALCL GPAVPRRRRH R
//
