ID A0A1U7DHF4_9RHOB Unreviewed; 979 AA.
AC A0A1U7DHF4; A0A2M9DDV2;
DT 10-MAY-2017, integrated into UniProtKB/TrEMBL.
DT 10-MAY-2017, sequence version 1.
DT 24-JAN-2024, entry version 33.
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=BV394_06495 {ECO:0000313|EMBL:APX89406.1}, CLV77_0487
GN {ECO:0000313|EMBL:PJJ85955.1};
OS Brevirhabdus pacifica.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Brevirhabdus.
OX NCBI_TaxID=1267768 {ECO:0000313|EMBL:APX89406.1, ECO:0000313|Proteomes:UP000187266};
RN [1] {ECO:0000313|EMBL:APX89406.1, ECO:0000313|Proteomes:UP000187266}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DY6-4 {ECO:0000313|EMBL:APX89406.1,
RC ECO:0000313|Proteomes:UP000187266};
RA Wang X.;
RT "Genomic analysis of Xuhuaishuia manganoxidans DY6-4.";
RL Submitted (JAN-2017) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:PJJ85955.1, ECO:0000313|Proteomes:UP000229573}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 27767 {ECO:0000313|EMBL:PJJ85955.1,
RC ECO:0000313|Proteomes:UP000229573};
RA Goeker M.;
RT "Genomic Encyclopedia of Archaeal and Bacterial Type Strains, Phase II
RT (KMG-II): From Individual Species to Whole Genera.";
RL Submitted (NOV-2017) to the EMBL/GenBank/DDBJ databases.
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}.
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DR EMBL; CP019124; APX89406.1; -; Genomic_DNA.
DR EMBL; PGFI01000011; PJJ85955.1; -; Genomic_DNA.
DR RefSeq; WP_076979430.1; NZ_PGFI01000011.1.
DR AlphaFoldDB; A0A1U7DHF4; -.
DR STRING; 1267768.BV394_06495; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000187266; Chromosome.
DR Proteomes; UP000229573; 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: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:UP000187266};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02002}.
FT DOMAIN 38..693
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 737..887
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT DOMAIN 945..971
FT /note="Zinc finger FPG/IleRS-type"
FT /evidence="ECO:0000259|Pfam:PF06827"
FT MOTIF 70..80
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT MOTIF 655..659
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 614
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 658
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 948
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 951
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 967
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 970
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
SQ SEQUENCE 979 AA; 110548 MW; 55AD6C3BFA53D069 CRC64;
MCADTPDTPE APDYKTTLNL PQTEFPMRAG LPKREPGWLE RWARIGVYER LRDKAKAETR
QPFTLHDGPP YANGHLHIGH ALNKILKDMV IRSQQMSGRD ARYIPGWDCH GLPIEWKIEE
KYRQKGLDKD AVPIVDFRQE CRSFAEGWVD IQRDEFKRIG ITGNWDNPYL TMDFHAERVI
AEEFQKFLMN GTLYRGSKPV MWSPVEKTAL AEAEVEYHDH KSHTIWVPFK IREGAPADMA
DARVVIWTTT PWTIPSNKAV AFNPKIAYGL YRVDGTEEES WTAQGDLYLL ADKLADEVLS
RARVTASTRL RDVSADELSG LTLIHPFNGV EGAEGFWDYD VPMIDGDHVT DDAGTGFVHT
APSHGADDFE CFVRRNWLDR MTYNVGEESE FLDHVPFFAG LQVFDRKGKE GKANAAVIDK
LVAASGLIAR GRVTHSYPHS WRSKAPVIFR NTPQWFAAID RAVGDGQDEY GTTIRERALT
SIDKLVTWTP KTGRNRLYSM IEARPDWVLS RQRAWGVPLT CFVKKDTQPT DPDFLLRDPV
VNARITEAFE AEGADAWYKD GAKARFLGDD HDHDAYEQVF DILDVWFDSG STHAFVLRDR
EDGSEDGLAD LYLEGTDQHR GWFHSSMLQA CGTRGRAPYR GVLTHGFTLD GKGNKMSKSL
GNTIAPEAVI KQYGADILRL WVAQSDYTAD LRIGDEILKG VADSYRRLRN TMRFMLGSLS
GFSEADRIAP EDMPELERWV LHRLAELDHR VRTGYAAYDF QGVFQALFNF ATVDLSSFYF
DIRKDVLYCD GDTVERRAAR SVLDILYHRL TTWLAPILVF TMEEVWLERF PGDASSVHLQ
DIPATPGDWR DDPLAAKWAG VRRVRRVVTA ALEEQRRDKV IGASLEAAPV VHVTDPAVLA
QLRTLPFADI CITSAVELTG DPIPDEAFRL PEIDGVGVVF EQAEGEKCQR CWKILPDVGH
HAHAQVCGRC DAALKDAGV
//
