ID A0A256ZAW6_9CREN Unreviewed; 1057 AA.
AC A0A256ZAW6;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 21.
DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000256|HAMAP-Rule:MF_02003};
DE EC=6.1.1.5 {ECO:0000256|HAMAP-Rule:MF_02003};
DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000256|HAMAP-Rule:MF_02003};
DE Short=IleRS {ECO:0000256|HAMAP-Rule:MF_02003};
GN Name=ileS {ECO:0000256|HAMAP-Rule:MF_02003};
GN ORFNames=B6U85_00100 {ECO:0000313|EMBL:OYT49109.1};
OS Desulfurococcales archaeon ex4484_42.
OC Archaea; Thermoproteota; Thermoprotei; Desulfurococcales.
OX NCBI_TaxID=2012520 {ECO:0000313|EMBL:OYT49109.1, ECO:0000313|Proteomes:UP000216823};
RN [1] {ECO:0000313|Proteomes:UP000216823}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA Dombrowski N., Seitz K.W., Teske A., Baker B.;
RT "Novel pathways for hydrocarbon cycling and metabolic interdependencies in
RT hydrothermal sediment communities.";
RL Submitted (JUN-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|HAMAP-Rule:MF_02003}.
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_02003};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02003};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_02003}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_02003}.
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_02003}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC IleS type 2 subfamily. {ECO:0000256|HAMAP-Rule:MF_02003}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_02003}.
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:OYT49109.1}.
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; NJDT01000001; OYT49109.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A256ZAW6; -.
DR Proteomes; UP000216823; 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; cd07961; Anticodon_Ia_Ile_ABEc; 1.
DR CDD; cd00818; IleRS_core; 1.
DR Gene3D; 3.40.50.620; HUPs; 2.
DR HAMAP; MF_02003; Ile_tRNA_synth_type2; 1.
DR InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR InterPro; IPR002300; aa-tRNA-synth_Ia.
DR InterPro; IPR033709; Anticodon_Ile_ABEc.
DR InterPro; IPR002301; Ile-tRNA-ligase.
DR InterPro; IPR023586; Ile-tRNA-ligase_type2.
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; PTHR42780:SF1; ISOLEUCINE--TRNA LIGASE, CYTOPLASMIC; 1.
DR PANTHER; PTHR42780; SOLEUCYL-TRNA SYNTHETASE; 1.
DR Pfam; PF08264; Anticodon_1; 1.
DR Pfam; PF19302; DUF5915; 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; 2.
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_02003};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_02003}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_02003};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_02003};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_02003};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_02003};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_02003}; Zinc {ECO:0000256|HAMAP-Rule:MF_02003}.
FT DOMAIN 21..635
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 683..836
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 596..600
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 599
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1057 AA; 123090 MW; 0966D43B9C22A91F CRC64;
MVRVGKVEGQ YDPHRVEDEV KKFWEEYSVY EKVKLKSSKS DKKFLFIDGP PYPSSDIPHI
GTAWNKALKD VILRYKRLRG FNVHDQPGYD CHGLPIEVNI EKSLGIRSKR EIETRIGVEK
FINLCKEMVS KNIESLTKWF KDLGVFMDWR NPYLTMNDEY IESAWWLIKR ASDMGLLVRE
KRVVYWCPRC STTLAEYEVE YEEITDPSIY VKFPIKGKNN EYLLIWTTTP WTLPANTFVM
AHPDATYVRV RVGNEIYVIA KERVKEVMAE AGITEYQVVD EFKGSSIEGL EYEHPLKDCV
KVQENLSKYH KVVMAPEFVV FHEGTGLVHA APGHGFEDFT VARKLGIEEI ASPVDDEGIF
TGDAGKYKGL YVREANKVII NDLKKRNALF HESTIKHRYP VCWRCKTPIV LRATEQWVLR
ITKLKDRLIN EVKKARWIPE WALDRIMVML DNLQDWVLSR QRYWGTPLPI WMCPQGHKVV
IGSIDELIKY GGKKPKELHR PWIDEVVIRC PYCGKPMRRV KDVIDVWFDS GIAFYASRAH
PSRLGSDVVV DFITEGHDQT RGWFFSLLRA GVLGFNKVPY RVVLVHGFAL DEQGREMHKS
LGNYVGLDEV ISKVGRDVFR LWVLQNTVWE DLKFSWKGLN EVKRDLSVAW NVFVFASTYM
NLDNYDPVRD NLEKYVKYLR VEDRWILSRL NSLIEKVTKA MDEYRVHDAA RALREFIVED
VSHWYVRIVR PRVWVEENTP DKLAVYATLY YILKNWLIMM SPFTPFLTEK LYQEFIRPAE
PDAPVSIHLL EWPKARRDFI DESLEGEMDI VRELFEVSAA ARMKAKLKLR QPVKKVIIYS
GDESIIRVVN KYRDLLLNIL NCKDIEIKAP GEVKELIRYK VEPNYSALGP KYKRLTKMIV
EYLSSRGDDV AKDILSKGSH EVRIGDTTIK LGAEDVKIIP LYASGYAVQE ARWGSLVIDT
RLNKEEIAKG LARDIVRRIQ TMRKELNLPM NAYIEVVMYV PEAHKDYVKD EIDYIAGEVR
AKEVRIVNTK ELKVEGALIK IWDIQGEEYV IAIKQLK
//
