ID A0A0E3Y7V2_9ENTR Unreviewed; 941 AA.
AC A0A0E3Y7V2;
DT 24-JUN-2015, integrated into UniProtKB/TrEMBL.
DT 24-JUN-2015, sequence version 1.
DT 27-MAR-2024, entry version 48.
DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000256|HAMAP-Rule:MF_02002};
DE EC=6.1.1.5 {ECO:0000256|HAMAP-Rule:MF_02002};
DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000256|HAMAP-Rule:MF_02002};
DE Short=IleRS {ECO:0000256|HAMAP-Rule:MF_02002};
GN Name=ileS {ECO:0000256|HAMAP-Rule:MF_02002,
GN ECO:0000313|EMBL:AKC60295.1};
GN ORFNames=BOBLI757_119 {ECO:0000313|EMBL:AKC60295.1};
OS Blochmannia endosymbiont of Camponotus (Colobopsis) obliquus.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; ant endosymbionts; Blochmannia.
OX NCBI_TaxID=1505597 {ECO:0000313|EMBL:AKC60295.1, ECO:0000313|Proteomes:UP000033104};
RN [1] {ECO:0000313|EMBL:AKC60295.1, ECO:0000313|Proteomes:UP000033104}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=757 {ECO:0000313|EMBL:AKC60295.1,
RC ECO:0000313|Proteomes:UP000033104};
RX PubMed=25861561;
RA Williams L.E., Wernegreen J.J.;
RT "Genome evolution in an ancient bacteria-ant symbiosis: parallel gene loss
RT among Blochmannia spanning the origin of the ant tribe Camponotini.";
RL PeerJ 3:E881-E881(2015).
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:0000256|ARBA:ARBA00025217, ECO:0000256|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;
CC Evidence={ECO:0000256|ARBA:ARBA00000114, ECO:0000256|HAMAP-
CC Rule:MF_02002};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02002};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_02002};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_02002}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|HAMAP-Rule:MF_02002}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC IleS type 1 subfamily. {ECO:0000256|ARBA:ARBA00006887,
CC ECO:0000256|HAMAP-Rule:MF_02002}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP010049; AKC60295.1; -; Genomic_DNA.
DR RefSeq; WP_046304606.1; NZ_CP010049.1.
DR AlphaFoldDB; A0A0E3Y7V2; -.
DR STRING; 1505597.BOBLI757_119; -.
DR KEGG; ben:BOBLI757_119; -.
DR PATRIC; fig|1505597.4.peg.114; -.
DR HOGENOM; CLU_001493_7_1_6; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000033104; 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; 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 {ECO:0000256|ARBA:ARBA00023146,
KW ECO:0000256|HAMAP-Rule:MF_02002};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_02002};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_02002};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_02002};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_02002};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_02002};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_02002}; Reference proteome {ECO:0000313|Proteomes:UP000033104};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02002}.
FT DOMAIN 28..644
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 688..844
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT DOMAIN 903..930
FT /note="Zinc finger FPG/IleRS-type"
FT /evidence="ECO:0000259|Pfam:PF06827"
FT MOTIF 58..68
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT MOTIF 605..609
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 564
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 608
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 904
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 907
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 924
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 927
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
SQ SEQUENCE 941 AA; 108650 MW; AE066C1E1E4E8B55 CRC64;
MIDYKYTLNL PHTKFPMRAN LISSELEMLD NWYEDDLYKL IRFSKKGKEI FFLHDGPPYV
NGNVHIGHAV NKILKDIIIK FKGLMGFDAP YIPGWDCHGL PVELKVEQLT RSSSKCSDKV
NCAEFRLMCR NYASKQVMKQ KKDFIRLGVL GNWQNSYLTM NFVTEANIIR VLSKVINNGH
IYKGIKPVHW CINCCSVLAE AEVEYCDYIS PSIYVMFIAK DIYEVLAKFG IKRSNMLVVL
VVWTTTPWSL PDNRALTVHP NFDYQLVEIN KQGFIISSFA VEKIMKDMNF SHWKILGTIK
GSELEYIKFC HPFMNFDVPV TLGEHVSWNV GTGIIHTAPA HGIDDYVIAQ RYQLEVFDSI
TADGYYLANT FPELDGIQCF EANDVIIDLL NKKGNLLYVK TIEHSYPHCW RHASPLIFRT
TPQWFISLDK NNLRTLMLAE IEKVQWMPAR EKLRMQSMVI NRPDWCISRQ RIWGVPIPVF
VHKNTHDLHP RTVEVMEHIA SLVERQGVQV WWDVNPVDLI GDDVLNYNKV TDVLDVWFDS
GSSNFSALST QFEHLGEVSD LYFEGVDQCR GWFMAALMLS VAITKKAPYK QVLTHGFVVD
YKGHKMSKSI GNVINPQVIV NKLGADVLRL WVASTNYTND ITISNEILKR SIDIYRRIRN
TARFLLSNIS DFDPSIHAVR PECMILLDRW AVGQAYSLQK NIISAYNKYN FHCVIKLIMH
FCSIDMGSFY LDVIKDRQYT NQANSIARRS CQTALYHIIE AMVRWISPIL SFTSSEIWKY
LPGERAKYVF TEEWYSNLFD IDSAQLMNND YWDILLQVRN EVNRVIAQAC SEGLIKSSLE
ASVVLYAEPC LAKKLRALGH ELDFLLLTSA ATVDDYVNHY KLKKIYESFD GLKIFLEKAR
GTKCFRCWHY ALDVGECSNY PHLCNRCISN MFGTGECRKF V
//
