ID H2G1S0_OCESG Unreviewed; 941 AA.
AC H2G1S0;
DT 21-MAR-2012, integrated into UniProtKB/TrEMBL.
DT 21-MAR-2012, sequence version 1.
DT 27-MAR-2024, entry version 74.
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:AEY00712.1};
GN OrderedLocusNames=GU3_04775 {ECO:0000313|EMBL:AEY00712.1};
OS Oceanimonas sp. (strain GK1 / IBRC-M 10197).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Aeromonadales;
OC Aeromonadaceae; Oceanimonas.
OX NCBI_TaxID=511062 {ECO:0000313|EMBL:AEY00712.1, ECO:0000313|Proteomes:UP000007742};
RN [1] {ECO:0000313|EMBL:AEY00712.1, ECO:0000313|Proteomes:UP000007742}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GK1 {ECO:0000313|EMBL:AEY00712.1,
RC ECO:0000313|Proteomes:UP000007742};
RX PubMed=22461556; DOI=10.1128/JB.00023-12;
RA Parsa Yeganeh L., Azarbaijani R., Sarikhan S., Mousavi H., Ramezani M.,
RA Amoozegar M.A., Shahzadeh Fazeli A., Salekdeh G.H.;
RT "Complete genome sequence of Oceanimonas sp. GK1, a halotolerant bacterium
RT from Gavkhouni Wetland in Iran.";
RL J. Bacteriol. 194:2123-2124(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 -!- 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; CP003171; AEY00712.1; -; Genomic_DNA.
DR RefSeq; WP_014291444.1; NC_016745.1.
DR AlphaFoldDB; H2G1S0; -.
DR STRING; 511062.GU3_04775; -.
DR KEGG; oce:GU3_04775; -.
DR eggNOG; COG0060; Bacteria.
DR HOGENOM; CLU_001493_7_1_6; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000007742; 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 CDD; cd00818; IleRS_core; 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:UP000007742};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02002}.
FT DOMAIN 28..645
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 690..845
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT DOMAIN 902..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 607..611
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 566
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 610
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; 104715 MW; C134733CD6DCE6A7 CRC64;
MSDYKHTLNL PETEFPMRGN LAQREPGMLQ RWFDEDLYGA VRRAKAGKKP FILHDGPPYA
NGSIHIGHSV NKILKDIIVK SKGLLGYDSP YIPGWDCHGL PIELKVEGKV GKPGVKVSAA
EFREACRAYA KEQIEAQKAD FIRLGVLGDW DNPYLTMNFD TEANIIRALG KIIDKGHLHK
GSKPVHWCTD CGSALAEAEV EYEDKRSPAI DVRFRAADEA AVVASFDCAE GHSGQGPVSV
VIWTTTPWTL PANRAVALHA ELNYALVQVE GDHPERLIVA ADLVKDVMDR AGISHYHNLG
YCQGAALELK RFHHPFYDFD VPAILGDHVT TDSGTGAVHT APGHGQEDFA VGQHYGLEVA
NPVGSNGVYL PDTELFAGQH VFKANDAVVE VLKERGALLH HEAYTHSYPH CWRHKTPIIF
RATPQWFISM DQAGLRGQAL SEIKKVQWVP EWGQNRIESM VENRPDWCIS RQRTWGVPIA
LFVHKDTQEL HPRATELMEA VAQRVEKAGI QAWWDLDPAE LLGEEADQYE KVLDTLDVWF
DSGSTHASVV DVRPEFQGHP ADMYLEGSDQ HRGWFMSSLM ISTAMKGHAP YRQVLTHGFT
VDGQGRKMSK SIGNVVSPQE VMNKLGADIL RLWVASTDYS GEMTVSDEIL KRSADAYRRI
RNTARFLLAN LSGFNPQTDM VAPEDMVVID RWAVGRAQAI QQEITQAYDE YNFHSVTQKL
MQFCSIEMGS FYLDVIKDRQ YTAKADSQAR RSCQTALYHI VEALVRWMAP IMSFTADEIW
ALLPGERERF VFTEEFYDGL FGLAEGEPLS DAYWAELLKV RQAVNKALES ARSNKVIGGA
LEADITLYAN DDLAAKLAQL GDELRFVMLT SKVTLAPLAD ATDAADTELA GLKVSVAKSE
AEKCGRCWHH VDDVGAHEGH DGICGRCVSN VAGDGEVRRF A
//
