ID   SYI_GLUOX               Reviewed;         960 AA.
AC   Q5FRI6;
DT   20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2005, sequence version 1.
DT   27-MAR-2024, entry version 113.
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=GOX1249;
OS   Gluconobacter oxydans (strain 621H) (Gluconobacter suboxydans).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC   Acetobacteraceae; Gluconobacter.
OX   NCBI_TaxID=290633;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=621H;
RX   PubMed=15665824; DOI=10.1038/nbt1062;
RA   Prust C., Hoffmeister M., Liesegang H., Wiezer A., Fricke W.F.,
RA   Ehrenreich A., Gottschalk G., Deppenmeier U.;
RT   "Complete genome sequence of the acetic acid bacterium Gluconobacter
RT   oxydans.";
RL   Nat. Biotechnol. 23:195-200(2005).
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; Evidence={ECO:0000255|HAMAP-
CC         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; CP000009; AAW61010.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q5FRI6; -.
DR   SMR; Q5FRI6; -.
DR   STRING; 290633.GOX1249; -.
DR   KEGG; gox:GOX1249; -.
DR   eggNOG; COG0060; Bacteria.
DR   HOGENOM; CLU_001493_7_1_5; -.
DR   Proteomes; UP000006375; 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; 1.10.730.20; -; 1.
DR   Gene3D; 3.40.50.620; HUPs; 2.
DR   Gene3D; 1.10.10.830; Ile-tRNA synthetase CP2 domain-like; 1.
DR   Gene3D; 3.90.740.10; Valyl/Leucyl/Isoleucyl-tRNA synthetase, editing domain; 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   NCBIfam; TIGR00392; ileS; 1.
DR   PANTHER; PTHR42765:SF1; ISOLEUCINE--TRNA LIGASE, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR42765; SOLEUCYL-TRNA SYNTHETASE; 1.
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; Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases; 1.
DR   SUPFAM; SSF52374; Nucleotidylyl transferase; 1.
DR   SUPFAM; SSF50677; ValRS/IleRS/LeuRS editing domain; 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..960
FT                   /note="Isoleucine--tRNA ligase"
FT                   /id="PRO_0000098393"
FT   MOTIF           82..92
FT                   /note="'HIGH' region"
FT   MOTIF           647..651
FT                   /note="'KMSKS' region"
FT   BINDING         606
FT                   /ligand="L-isoleucyl-5'-AMP"
FT                   /ligand_id="ChEBI:CHEBI:178002"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         650
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         931
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         934
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         951
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         954
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ   SEQUENCE   960 AA;  107557 MW;  8492209569DE222A CRC64;
     MTETGSSLMS DKTPDPSVAA FKEQQDRYRD TVFLPRTGFP MRGGLPKREP ETLARWAATG
     LDEKIREAGK GRPVFTLHDG PPYANGHIHI GHALNKVMKD VINRAHRMSG YEVRYLPGWD
     CHGLPIEWRI EEQYRKAGKD KDQVPLLQFR AECRQYAAQW VQKQAEDFKR IGVQAEWANR
     YVTMDFSSEA KIVDEIGKFL LNGSLYRGLR PVMWSPVEKT ALAEAEIEYH DIDSTTIFVA
     FPIIKDPTPA HALNGVSAVI WTTTPWTIPA NRALAYGPDI TYVVLRVDET NENSVVPQGA
     KLLVAEDRVD AFCTETGITA HHILYTLPGN GLEGAVCAHP LRGRGYEYDV PMLPGDFVTT
     DAGTGLVHMA PSHGQDDFML CRQYGIEVPE LVQDDGRYAP WVPHLAGIHV FKAADPVCDL
     LTEARQSAEH DDAPATGLMA RGTVRHSYPH SWRSKAPIIF RATPQWFIAM DGETKLREKS
     LSALDNVTFV PEAARRRLTS MIEQRPDWCI SRQRAWGVPI AVFVEKRTGE VLRDAAVMQR
     IVEAFREKGA DIWYEADPSL FLGEGRNPAD YEQVFDIVDV WFESGSTHRF DLGQEGLNFP
     ADLYLEGSDQ HRGWFQSSLL ESVGTMGVAP YKALVTNGFV MDEQGRKMSK SLGNVVAPSD
     VTESLGADIL RLWVLNSDTN EDLRIGQDIL KQQGELYRRL RNTLRWLLGA LDGFTPEEAV
     SYADLPPLEQ YILHRLTELR GLIASAVETH QWVGVYPALH GFCTTDLSAF YFDIRKDAIY
     CDAPSDPTRR AARTVLDALH RALCTWLAPV LVFTAEEAWQ ARFGEDDSVH LAQFFEPEAE
     WNDPELGNRW EDIRAYRRLI TTELETARRD GTIGSSLEAS VTLPLSQEEA GIFGGLDWAE
     LLITSHAETE LLPGDTAHGG PQVERAPGHK CARCWKVLPE VGENTEHPAL CRRCIDVVSA
//