SYI_YERP3
ID SYI_YERP3 Reviewed; 938 AA.
AC A7FMD7;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-SEP-2007, sequence version 1.
DT 03-AUG-2022, entry version 93.
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};
GN OrderedLocusNames=YpsIP31758_3460;
OS Yersinia pseudotuberculosis serotype O:1b (strain IP 31758).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Yersiniaceae; Yersinia.
OX NCBI_TaxID=349747;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IP 31758;
RX PubMed=17784789; DOI=10.1371/journal.pgen.0030142;
RA Eppinger M., Rosovitz M.J., Fricke W.F., Rasko D.A., Kokorina G.,
RA Fayolle C., Lindler L.E., Carniel E., Ravel J.;
RT "The complete genome sequence of Yersinia pseudotuberculosis IP31758, the
RT causative agent of Far East scarlet-like fever.";
RL PLoS Genet. 3:1508-1523(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; CP000720; ABS45948.1; -; Genomic_DNA.
DR RefSeq; WP_012105695.1; NC_009708.1.
DR AlphaFoldDB; A7FMD7; -.
DR SMR; A7FMD7; -.
DR EnsemblBacteria; ABS45948; ABS45948; YpsIP31758_3460.
DR KEGG; ypi:YpsIP31758_3460; -.
DR HOGENOM; CLU_001493_7_1_6; -.
DR OMA; HLGTAWN; -.
DR Proteomes; UP000002412; 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; Zinc.
FT CHAIN 1..938
FT /note="Isoleucine--tRNA ligase"
FT /id="PRO_1000070893"
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 901
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 904
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 921
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 924
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ SEQUENCE 938 AA; 104762 MW; 03515E57D5C0D07C CRC64;
MSDYKNTLNL PETGFPMRGD LAKREPDMLK RWYEQDLYGI IRAAKKGKKT FILHDGPPYA
NGNIHIGHSV NKILKDIIVK SKGMAGYDSP YIPGWDCHGL PIELKVEQLI GKPGEKVSAA
EFRTACRKYA AEQVEGQKKD FIRLGVLGDW DHPYLTMDFK TEANIIRALS KIIDNGHLHK
GAKPVHWCTD CGSSLAEAEV EYYDKTSQSI DVRFNAVDTA TVAAKFGVSV VNGPISLVIW
TTTPWTLPAN RAISLNAEYL YQLVQVEGEC LILAADLVES VMKRAGITQW AVLGSCTGSD
LELLRFTHPF MGFDVPAILG EHVTLDAGTG AVHTAPGHGP DDFVIGQKYG LEVANPVGPN
GCYLAGTYPT LDGLFVFKAN DVVVELLREK GALLHVEKLL HSYPCCWRHK TPIIFRATPQ
WFISMDQKGL RKQSLQEIKD VQWIPDWGQA RIETMVANRP DWCISRQRTW GVPMSLFVHK
ETEQLHPRSI ELMEEVAKRV EQDGIQAWWD LDPAEILGAD AADYVKVPDT LDVWFDSGST
HSSVVDARPE FGGHSPDMYL EGSDQHRGWF MSSLMIATAM KGKAPYRQVL THGFTVDGQG
RKMSKSIGNT ISPQDVMNKL GGDILRLWVA STDYTGEIAV SDEILKRSAD SYRRIRNTAR
FLLANLNGFD PAQHQVKPEE MVVVDRWAVG RAQAAQAEIM EAYENYDFHL VVQRLMQFCS
VEMGSFYLDI IKDRQYTAKG DGIARRSCQT ALFHIAEALV RWMAPIMSFT ADEIWNHLPG
ERQQYVFTEE WYDGLFGLAG NESMNDTFWA ELLKVRGEVN KVLEQARSDK RIGGSLEAAV
TLYAEPELAA RLNSLQDELR FVLLTSAAKV AAYADAGNDA QQSELIAGLK ITFNKADGEK
CPRCWHYTQD VGLVAEHAEL CGRCVTNVAG DGEERKFA
