SYI_DICNV
ID SYI_DICNV Reviewed; 924 AA.
AC A5EWT0;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 12-JUN-2007, sequence version 1.
DT 03-AUG-2022, entry version 95.
DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_02002};
DE EC=6.1.1.5 {ECO:0000255|HAMAP-Rule:MF_02002};
DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02002};
DE Short=IleRS {ECO:0000255|HAMAP-Rule:MF_02002};
GN Name=ileS {ECO:0000255|HAMAP-Rule:MF_02002}; OrderedLocusNames=DNO_0083;
OS Dichelobacter nodosus (strain VCS1703A).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Cardiobacteriales;
OC Cardiobacteriaceae; Dichelobacter.
OX NCBI_TaxID=246195;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VCS1703A;
RX PubMed=17468768; DOI=10.1038/nbt1302;
RA Myers G.S.A., Parker D., Al-Hasani K., Kennan R.M., Seemann T., Ren Q.,
RA Badger J.H., Selengut J.D., Deboy R.T., Tettelin H., Boyce J.D.,
RA McCarl V.P., Han X., Nelson W.C., Madupu R., Mohamoud Y., Holley T.,
RA Fedorova N., Khouri H., Bottomley S.P., Whittington R.J., Adler B.,
RA Songer J.G., Rood J.I., Paulsen I.T.;
RT "Genome sequence and identification of candidate vaccine antigens from the
RT animal pathogen Dichelobacter nodosus.";
RL Nat. Biotechnol. 25:569-575(2007).
CC -!- FUNCTION: Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS
CC can inadvertently accommodate and process structurally similar amino
CC acids such as valine, to avoid such errors it has two additional
CC distinct tRNA(Ile)-dependent editing activities. One activity is
CC designated as 'pretransfer' editing and involves the hydrolysis of
CC activated Val-AMP. The other activity is designated 'posttransfer'
CC editing and involves deacylation of mischarged Val-tRNA(Ile).
CC {ECO:0000255|HAMAP-Rule:MF_02002}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-isoleucine + tRNA(Ile) = AMP + diphosphate + L-
CC isoleucyl-tRNA(Ile); Xref=Rhea:RHEA:11060, Rhea:RHEA-COMP:9666,
CC Rhea:RHEA-COMP:9695, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC ChEBI:CHEBI:58045, ChEBI:CHEBI:78442, ChEBI:CHEBI:78528,
CC ChEBI:CHEBI:456215; EC=6.1.1.5; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_02002};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_02002};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_02002};
CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_02002}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02002}.
CC -!- DOMAIN: IleRS has two distinct active sites: one for aminoacylation and
CC one for editing. The misactivated valine is translocated from the
CC active site to the editing site, which sterically excludes the
CC correctly activated isoleucine. The single editing site contains two
CC valyl binding pockets, one specific for each substrate (Val-AMP or Val-
CC tRNA(Ile)). {ECO:0000255|HAMAP-Rule:MF_02002}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC IleS type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_02002}.
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DR EMBL; CP000513; ABQ13975.1; -; Genomic_DNA.
DR RefSeq; WP_011927835.1; NC_009446.1.
DR AlphaFoldDB; A5EWT0; -.
DR SMR; A5EWT0; -.
DR STRING; 246195.DNO_0083; -.
DR PRIDE; A5EWT0; -.
DR EnsemblBacteria; ABQ13975; ABQ13975; DNO_0083.
DR KEGG; dno:DNO_0083; -.
DR eggNOG; COG0060; Bacteria.
DR HOGENOM; CLU_001493_7_1_6; -.
DR OMA; HLGTAWN; -.
DR OrthoDB; 32262at2; -.
DR Proteomes; UP000000248; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0002161; F:aminoacyl-tRNA editing activity; IEA:InterPro.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004822; F:isoleucine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000049; F:tRNA binding; IEA:InterPro.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006428; P:isoleucyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR CDD; cd07960; Anticodon_Ia_Ile_BEm; 1.
DR Gene3D; 3.40.50.620; -; 2.
DR Gene3D; 3.90.740.10; -; 1.
DR HAMAP; MF_02002; Ile_tRNA_synth_type1; 1.
DR InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR InterPro; IPR002300; aa-tRNA-synth_Ia.
DR InterPro; IPR033708; Anticodon_Ile_BEm.
DR InterPro; IPR002301; Ile-tRNA-ligase.
DR InterPro; IPR023585; Ile-tRNA-ligase_type1.
DR InterPro; IPR013155; M/V/L/I-tRNA-synth_anticd-bd.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR InterPro; IPR009080; tRNAsynth_Ia_anticodon-bd.
DR InterPro; IPR009008; Val/Leu/Ile-tRNA-synth_edit.
DR InterPro; IPR010663; Znf_FPG/IleRS.
DR Pfam; PF08264; Anticodon_1; 1.
DR Pfam; PF00133; tRNA-synt_1; 1.
DR Pfam; PF06827; zf-FPG_IleRS; 1.
DR PRINTS; PR00984; TRNASYNTHILE.
DR SUPFAM; SSF47323; SSF47323; 1.
DR SUPFAM; SSF50677; SSF50677; 1.
DR TIGRFAMs; TIGR00392; ileS; 1.
DR PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
PE 3: Inferred from homology;
KW Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW Nucleotide-binding; Protein biosynthesis; Reference proteome; Zinc.
FT CHAIN 1..924
FT /note="Isoleucine--tRNA ligase"
FT /id="PRO_1000022060"
FT MOTIF 58..68
FT /note="'HIGH' region"
FT MOTIF 602..606
FT /note="'KMSKS' region"
FT BINDING 561
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 605
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 887
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 890
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 907
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 910
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ SEQUENCE 924 AA; 105346 MW; BB6A36F6ED0BBF2C CRC64;
MADYKHTLNL PQTDFPMRGN LAQREPEQLR WWQEHEIYRK QREAFADCPT FMLHDGPPYA
NGQIHVGHAL NKTLKDIIIK SRHLLGYNSP YVPGWDCHGL PIEQKVEQKI GKPNQKVSAT
EFRAACRRYA AEQVALQKDG FMRLGIFGFW DQPYLTMNFE TEAQIVRALR DIVAAGHVTQ
GFKPINWCFD CASSLAEAEV EYQDKTSYSI DVAFAVKDVA ALAKIMHADV VPAAVDVVIW
TTTPWTLPAN VAVSIHPEFY YVLVEIEGWY CVVAEELIPA LKSRWKKSAD WRICGRALGK
DLDRLTLRHP FIDRDVLLIN GTHVTLDAGT GCVHTAPAHG VEDYDVCQQY GIDLIHCVLG
NGLYNDDTPH FAGQHIFAAE PQIIELLQTQ NRLIAVEKIT HSYPHCWRHK TPTIYRATTQ
WFISMDKAGL RQKALDGLNE VAFTPDWGKP RLLNMIAHRP DWCISRQRYW GVPLCFVVDK
QTGQLHPDIV NIMDKAASAI EQKGVEAWYE LSLDTLLSGK EVDRYEKLND VLDVWFDSGT
THYSVLKKRA ELSYPADLYL EGSDQHRGWF HSSLLTASAI TGKPPYKALL THGFTVDEDG
RKMSKSLGNV VDPNQVIKTL GADILRLWVA SADYTAEVSL SPNILNQRAD AYRRMRNTCR
FLLANLHDFD PEKNSVAYEK LLPLDRYVIA VAHDLQEKIK KLYVSYDFHL IYQEIFNFCS
VMLGGFYLDV IKDRQYTVAQ NALARRSAQT AIFHIIEAMV RWLAPILSFT AEEIWRYLPG
KREESVFLTK FYEGLQPLND DFLSMHDWEL LLQLREKVNA ALEKARNQGI IGGSLEAMVV
LHLPPQEYEI AARFEQELRF ILIVSAVNVQ PSAALSIEVQ HAIGEKCERC WHYLPDVGTD
HQHPTLCKRC IENVDGGGEL RRFA
