ID SYI_PARP8 Reviewed; 945 AA. AC B2JDY9; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 10-JUN-2008, sequence version 1. DT 27-MAR-2024, entry version 95. DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_02002}; DE EC=6.1.1.5 {ECO:0000255|HAMAP-Rule:MF_02002}; DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02002}; DE Short=IleRS {ECO:0000255|HAMAP-Rule:MF_02002}; GN Name=ileS {ECO:0000255|HAMAP-Rule:MF_02002}; GN OrderedLocusNames=Bphy_0574; OS Paraburkholderia phymatum (strain DSM 17167 / CIP 108236 / LMG 21445 / OS STM815) (Burkholderia phymatum). OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales; OC Burkholderiaceae; Paraburkholderia. OX NCBI_TaxID=391038; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=DSM 17167 / CIP 108236 / LMG 21445 / STM815; RX PubMed=25197461; DOI=10.4056/sigs.4861021; RA Moulin L., Klonowska A., Caroline B., Booth K., Vriezen J.A., Melkonian R., RA James E.K., Young J.P., Bena G., Hauser L., Land M., Kyrpides N., Bruce D., RA Chain P., Copeland A., Pitluck S., Woyke T., Lizotte-Waniewski M., RA Bristow J., Riley M.; RT "Complete genome sequence of Burkholderia phymatum STM815(T), a broad host RT range and efficient nitrogen-fixing symbiont of Mimosa species."; RL Stand. Genomic Sci. 9:763-774(2014). 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_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; Evidence={ECO:0000255|HAMAP- CC Rule:MF_02002}; CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP- CC Rule:MF_02002}; CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_02002}; CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_02002}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|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:0000255|HAMAP-Rule:MF_02002}. CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family. CC IleS type 1 subfamily. {ECO:0000255|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; CP001043; ACC69765.1; -; Genomic_DNA. DR RefSeq; WP_012399988.1; NZ_CADFGH010000001.1. DR AlphaFoldDB; B2JDY9; -. DR SMR; B2JDY9; -. DR STRING; 391038.Bphy_0574; -. DR KEGG; bph:Bphy_0574; -. DR eggNOG; COG0060; Bacteria. DR HOGENOM; CLU_001493_7_1_4; -. DR OrthoDB; 9810365at2; -. DR Proteomes; UP000001192; Chromosome 1. 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; ATP-binding; Cytoplasm; Ligase; Metal-binding; KW Nucleotide-binding; Protein biosynthesis; Reference proteome; Zinc. FT CHAIN 1..945 FT /note="Isoleucine--tRNA ligase" FT /id="PRO_1000189139" FT MOTIF 66..76 FT /note="'HIGH' region" FT MOTIF 622..626 FT /note="'KMSKS' region" FT BINDING 581 FT /ligand="L-isoleucyl-5'-AMP" FT /ligand_id="ChEBI:CHEBI:178002" FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002" FT BINDING 625 FT /ligand="ATP" FT /ligand_id="ChEBI:CHEBI:30616" FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002" FT BINDING 908 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002" FT BINDING 911 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002" FT BINDING 928 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002" FT BINDING 931 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002" SQ SEQUENCE 945 AA; 105999 MW; 0120E0713516D61C CRC64; MSNKKADSKP QARYPVNLLD TPFPMRGDLP RREPQWVKDW QERKIYEKIR AASKGRKKFI LHDGPPYANG DIHLGHAVNK ILKDMIVKAR NLAGFDAVYV PGWDCHGMPI EIQIEKQFGK SLPAAEVMQK ARAYATEQIE KQKAGFRRLG VLGDWDNPYK TMNFANEAGE IRALAKIMEK GYVFRGLKPV NWCFDCGSAL AEAEVEYKDK TDPTIDVMFT FADPEKTAHA FGLAALPRNE GGIVIWTTTP WTIPANQALN LHPEIVYALV DTPRGLLILA EERVEACLKS YGIAGTVIAT APGAKLANLR FNHPLASAHP SYKRTSPVYL GDYVTTETGT GIVHSSPAYG VEDFISCKTH GMADSDILSP VMGDGRYIES LALFGGLSIW DANPKIVEAL DEAGTLLRTE KYLHSYMHCW RHKTPIIYRA TSQWFAGMDI KPNDSDKTLR ETALEGIEAT AFYPSWGKQR LFAMIANRPD WTLSRQRQWG VPMAFFVHKE TGELHPRTLE LLEEVAKRVE VSGIEAWQTL DPRELIGDDA NMYEKNRDTL DVWFDSGTTH WHVLRGSHKD ELQFPADLYL EGSDQHRGWF HSSLLTASML DGRPPYNALL THGFTVDGEG RKMSKSLGNG IDPHEVSNRL GAEIIRLWIA STDYSGELAI SEEILKRVTE SYRRIRNTLR FLLANLSDFD IGKHARPVGE WLEIDRYAVA LTANLQADIL SHYDRYEFHP VVAKLQTFCS EDLGGFYLDV LKDRLYTTAA DSKARRSAQT ALYHIAHGLL RLMAPFLSFT AEEAWKVFQP QSETIYTETY HAYPDVPEAS TLLDKWTLLR AVRSDVTKAL EEARVANQIG SSLQAEVEIR AAGARHDALA SLGADLKFVL ITSGATVVKV DSVDEEGVDV ITSKYLKCER CWHYRKDVGE SAEHPTLCGR CISNLFGNGE TRSAA //