ID J2HEB5_9CAUL Unreviewed; 1005 AA.
AC J2HEB5;
DT 03-OCT-2012, integrated into UniProtKB/TrEMBL.
DT 03-OCT-2012, sequence version 1.
DT 24-JAN-2024, entry version 60.
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 ORFNames=PMI01_01873 {ECO:0000313|EMBL:EJL33918.1};
OS Caulobacter sp. AP07.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Caulobacterales;
OC Caulobacteraceae; Caulobacter.
OX NCBI_TaxID=1144304 {ECO:0000313|EMBL:EJL33918.1, ECO:0000313|Proteomes:UP000007300};
RN [1] {ECO:0000313|EMBL:EJL33918.1, ECO:0000313|Proteomes:UP000007300}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AP07 {ECO:0000313|EMBL:EJL33918.1,
RC ECO:0000313|Proteomes:UP000007300};
RX PubMed=23045501; DOI=10.1128/JB.01243-12;
RA Brown S.D., Utturkar S.M., Klingeman D.M., Johnson C.M., Martin S.L.,
RA Land M.L., Lu T.Y., Schadt C.W., Doktycz M.J., Pelletier D.A.;
RT "Twenty-one genome sequences from Pseudomonas species and 19 genome
RT sequences from diverse bacteria isolated from the rhizosphere and
RT endosphere of Populus deltoides.";
RL J. Bacteriol. 194:5991-5993(2012).
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 -!- 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 -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_02002}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EJL33918.1}.
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DR EMBL; AKKF01000131; EJL33918.1; -; Genomic_DNA.
DR RefSeq; WP_007666999.1; NZ_AKKF01000131.1.
DR AlphaFoldDB; J2HEB5; -.
DR PATRIC; fig|1144304.3.peg.1754; -.
DR Proteomes; UP000007300; Unassembled WGS sequence.
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: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 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 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 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}.
FT DOMAIN 44..703
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 748..902
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 70..80
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT MOTIF 665..669
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 624
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 668
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
SQ SEQUENCE 1005 AA; 112472 MW; F6BF9DBCCF451873 CRC64;
MADDATPARD YRETVFLPDT SFPMRGGLPK KEPEILEGWA ALSDKGLYGA VRAKRQADGA
PLFVLHDGPP YANGAIHIGH ALNKTLKDFV VRSRFALGYD VDYVPGWDCH GLPIEWKIEE
EFRAKGRRKD EVPAAEFRER CREYAAGWIE AQKVEFQRLG VLGDWWNRYA TMDYTSEATI
VAEFHRFATS GQLYRGSKPV MWSPVERTAL ADAEIEYHDH TSPTVWVKFP VKAYDEDRYA
LSGAEAGDNV FRLPPNDASV VIWTTTPWTL PANRAISFGP KVEYGLYEVE EMEADLAFAP
WAAPGDRLIV ADKLADDVAK AAKIAKWRRA EPVDPTGLVC AHPLAQFAPD PVGGYGYDVP
LLPGEHVTDD AGTGFVHTAP GHGADDYLVW LKSGHSLDSI PDTVDPDGAY FPSVPLFAGL
KVIETEGKKA GKFGPANGAV MDKLIEAGAL LARGRVEHSY PHSWRSKAQV IFRNTPQWFI
RMDHAVDQLG GKTLRETAVQ AIADTAFHPE AGRNRIGAMV ETRPDWLVSR QRAWGTPLAM
FVDKETGVPL MDPDVNARIL AIIREGGSDA WFERPDADFL GNHDPARYEK VVDILDVWFD
SGCTHAFTLE GRDDSRTPAD LYLEGSDQHR GWFQSSLLES CGTRGHAPYK AVLTHGFTQD
ENGEKMSKSK GNTVEPQTIT KESGAEILRL WAAMVDYSED QRIGKTILAT TTDAYRKLRN
TTRYLLGALA GFDEAERVTD YADFPPLEKY ILHRLWELDG QVRAAYEAFR FSDVIRPLID
FCQGDLSSLF FDIRKDSLYC DVPTALRRRA YRTVLDYVFE RLTVWLSPLT SFTMEEAWTT
RFPDAGSNVL RVIPETPADW ENPAEQLRWD RVQEVRRVVN GILEEERRDK KIGSSLEASI
EIFIADPELF EAFSGVEAAE TFITSIAVIT PVKHTDFKAA FPEGARTLPD QKLVGVLVKL
ASDEGAKCAR SWRILPEVGS DPRYPELSLR DAEAVAWWDE RQTTA
//
