ID   SYI_BORAP               Reviewed;        1042 AA.
AC   Q0SM18; G0IQM4;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2006, sequence version 1.
DT   27-MAR-2024, entry version 114.
DE   RecName: Full=Isoleucine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_02003};
DE            EC=6.1.1.5 {ECO:0000255|HAMAP-Rule:MF_02003};
DE   AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02003};
DE            Short=IleRS {ECO:0000255|HAMAP-Rule:MF_02003};
GN   Name=ileS {ECO:0000255|HAMAP-Rule:MF_02003};
GN   OrderedLocusNames=BAPKO_0886, BafPKo_0860;
OS   Borreliella afzelii (strain PKo) (Borrelia afzelii).
OC   Bacteria; Spirochaetota; Spirochaetia; Spirochaetales; Borreliaceae;
OC   Borreliella.
OX   NCBI_TaxID=390236;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PKo;
RX   PubMed=16914037; DOI=10.1186/1471-2164-7-211;
RA   Gloeckner G., Schulte-Spechtel U., Schilhabel M., Felder M., Suehnel J.,
RA   Wilske B., Platzer M.;
RT   "Comparative genome analysis: selection pressure on the Borrelia vls
RT   cassettes is essential for infectivity.";
RL   BMC Genomics 7:211-211(2006).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PKo;
RX   PubMed=22123755; DOI=10.1128/jb.05951-11;
RA   Casjens S.R., Mongodin E.F., Qiu W.G., Dunn J.J., Luft B.J.,
RA   Fraser-Liggett C.M., Schutzer S.E.;
RT   "Whole-genome sequences of two Borrelia afzelii and two Borrelia garinii
RT   Lyme disease agent isolates.";
RL   J. Bacteriol. 193:6995-6996(2011).
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_02003}.
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_02003};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_02003};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_02003}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02003}.
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_02003}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       IleS type 2 subfamily. {ECO:0000255|HAMAP-Rule:MF_02003}.
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DR   EMBL; CP000395; ABH02110.1; -; Genomic_DNA.
DR   EMBL; CP002933; AEL70049.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q0SM18; -.
DR   SMR; Q0SM18; -.
DR   STRING; 29518.BLA32_00060; -.
DR   KEGG; baf:BAPKO_0886; -.
DR   KEGG; bafz:BafPKo_0860; -.
DR   PATRIC; fig|390236.22.peg.821; -.
DR   eggNOG; COG0060; Bacteria.
DR   HOGENOM; CLU_001493_1_1_12; -.
DR   OrthoDB; 9810365at2; -.
DR   Proteomes; UP000005216; 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; cd07961; Anticodon_Ia_Ile_ABEc; 1.
DR   CDD; cd00818; IleRS_core; 1.
DR   Gene3D; 3.40.50.620; HUPs; 2.
DR   HAMAP; MF_02003; Ile_tRNA_synth_type2; 1.
DR   InterPro; IPR002300; aa-tRNA-synth_Ia.
DR   InterPro; IPR033709; Anticodon_Ile_ABEc.
DR   InterPro; IPR002301; Ile-tRNA-ligase.
DR   InterPro; IPR023586; Ile-tRNA-ligase_type2.
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   NCBIfam; TIGR00392; ileS; 1.
DR   PANTHER; PTHR42780:SF1; ISOLEUCINE--TRNA LIGASE, CYTOPLASMIC; 1.
DR   PANTHER; PTHR42780; SOLEUCYL-TRNA SYNTHETASE; 1.
DR   Pfam; PF08264; Anticodon_1; 1.
DR   Pfam; PF19302; DUF5915; 1.
DR   Pfam; PF00133; tRNA-synt_1; 1.
DR   PRINTS; PR00984; TRNASYNTHILE.
DR   SUPFAM; SSF47323; Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases; 2.
DR   SUPFAM; SSF52374; Nucleotidylyl transferase; 1.
DR   SUPFAM; SSF50677; ValRS/IleRS/LeuRS editing domain; 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..1042
FT                   /note="Isoleucine--tRNA ligase"
FT                   /id="PRO_1000022148"
FT   MOTIF           48..58
FT                   /note="'HIGH' region"
FT   MOTIF           594..598
FT                   /note="'KMSKS' region"
FT   BINDING         597
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02003"
SQ   SEQUENCE   1042 AA;  122522 MW;  51B78BF0D7E1C44F CRC64;
     MFKKVENKAN FPKIEEKILK FWNDNKIFEK SMKQREGCEE FTFYDGPPFA TGLPHFGHFV
     PNTIKDIIPR YQTMRGKYVK RNFGWDTHGL PVEYEVEKKL GISGKYEIEN YGIENFNKEC
     KKIVLRYTEE WKNIILRLGR WVDFEKGYKT MDINFMESVW WVFKSLYNKG LIYESYYVLP
     YSPKLATPLS NFEVNLGEYK EVNDPSLTIK FKIKDKNEYL LAWTTTPWTL PSNLGIAVGQ
     EIEYSKIFDK KKEEILILGS KKLDSYYDDE NSYTIIEKFK GSKLEGIEYE PIFNYFLEQK
     DKGAFKVHMA DYVTTDDGTG IVHIAPFGEE DYRILKKHTN VDIIDPLDAE CKFTNRVKDF
     QGLFVKDADK KIIENLKLRN FLFKRENYLH RYPFCYRTNY PIIYRPISSW FVNVEKIKTK
     LLEVNEKINW MPAHLKKGRF GKWLENAKDW AISRNRFWGN PIPIWICSKT GKKICVGSKK
     ELESLSGQKI EDLHKDKVDK ITWPSKDGGT FIRTSEVLDC WFESGAMPYA SNHYPFTNES
     NFKNIFPADF IAEGLDQTRG WFYTLTILGV SLFESTAFKN VIVNGLVLSS DGRKMSKSFK
     NYTDPMEVIN TFGADALRLY LIMSPVVKAD DLKYSDNGVR DVLKNIIIPI WNAYSFFTTY
     AIIDKFQPPK NLNLVKNNNL DKWIISELES LKKILNNEID KYNLTKSIES LLEFIDKLNN
     WYIRRSRRRF WKSENDKDKN DAYETLYYAI KTLMILLAPF IPFITEEIYQ NLKTDEDKQS
     IHLNDYPKAN ENLINKTIEE KINLARKITS MARSLRSLHN IKIRMPISMI YIVTKNQNEQ
     NMLIEMQEII LDEINAKEMK IKSNEEDLIT YKAKANFKEL GKKLGKDMKT VSIEISKLKN
     EDIIKIINGI SYEIKVGNTK YYLSLNDIIL EREEKDNLKV INEESITIGI DSLITKELYL
     EGLTREFVRQ IQNLRKEKNF DVSDRINLYI ENNETLQEIL NKFEKYIKTE TLALNIIFNK
     SKLEKKINLD DNIFTIIGIE KC
//