ID D5VRW7_METIM Unreviewed; 1024 AA.
AC D5VRW7;
DT 13-JUL-2010, integrated into UniProtKB/TrEMBL.
DT 13-JUL-2010, sequence version 1.
DT 27-MAR-2024, entry version 77.
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 OrderedLocusNames=Metin_0651 {ECO:0000313|EMBL:ADG13320.1};
OS Methanocaldococcus infernus (strain DSM 11812 / JCM 15783 / ME).
OC Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC Methanocaldococcaceae; Methanocaldococcus.
OX NCBI_TaxID=573063 {ECO:0000313|EMBL:ADG13320.1, ECO:0000313|Proteomes:UP000002061};
RN [1] {ECO:0000313|EMBL:ADG13320.1, ECO:0000313|Proteomes:UP000002061}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 11812 / JCM 15783 / ME {ECO:0000313|Proteomes:UP000002061};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L.,
RA Pitluck S., Munk A.C., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Sieprawska-Lupa M., Whitman W.B., Woyke T.;
RT "Complete sequence of Methanocaldococcus infernus ME.";
RL Submitted (APR-2010) 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}.
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DR EMBL; CP002009; ADG13320.1; -; Genomic_DNA.
DR RefSeq; WP_013100066.1; NC_014122.1.
DR AlphaFoldDB; D5VRW7; -.
DR STRING; 573063.Metin_0651; -.
DR GeneID; 9131658; -.
DR KEGG; mif:Metin_0651; -.
DR eggNOG; arCOG00807; Archaea.
DR HOGENOM; CLU_001493_1_1_2; -.
DR OrthoDB; 30823at2157; -.
DR Proteomes; UP000002061; 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; 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; 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_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 16..620
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 671..820
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 46..56
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT MOTIF 587..591
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 590
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1024 AA; 120769 MW; 3C59667AC6C844B3 CRC64;
MERVKQVNFR ELDKEIKKFW ENNRIYEKVK EKNKENKEFY FVDGPPYCSG AIHLGTAWNK
IIKDTYLRFK RMQGFNVLDK AGWDMHGLPI EVKVEQEFGI KSKKEIEKIG VDKFIEKCKE
FALKHKEIME NQFKNLGVWL DWDNAYMPIT KEYMEIGWWT LKRAHEKGLL VKDLRVVYWC
PRCETALAEH EVRGEYKEVY DPSVYVKFKL KEENAYLIIW TTTPWTLMAN LAVAVHPDYD
YVYVDVGGET WIVAEKLLED VLKKAKVESY KIIKKVKGRE LEGLKYEPPL LEENEKLREL
HNLENVHTVI LGEHVTLESG TGLVHTAPGH GEEDYEVAKK YNIPIYSPID DQGRYTEGKW
KGWFVKDADN EIIETLRNKG LLVHAGRIKH SYPHCWRCKT PLLFRATEQW FLKISEIKEN
IIDQAKTVEW IPEWVEQRYI NGVKYVGDWN ISRQRYWGIP LPIWVCEKCK NYVVIGSVEE
LKERMINNIE LDDLHKPTVD KVILRCECGG EMRRVPDVLD VWFDSGLAPY ASIGSKTLKK
ADFITEGHDQ VTKWFYSQHA LSAIVFNDIP YKKCLMHGFT LDEHGEKMSK SLGNIVNPDD
VVEKYGADIL RFYLLSANKV WEDLKFVWSE VEDVLSLFNT LWNAYMFSVN YMVLDNFKPN
EEYFKHLKDE DKWIISRVNS LAKKAIESLE IPHFHTYTWA IKDFILNDLS RWYIRLIRER
TWKEKEDIDK LSAYQTLYYV LLKLCKIIAP VAPHIGEAIY QNLKTEDMEE SIFMYSIDVD
EHFISEELEK EMEIVRDIVD SIYRGRDRIK YSLRYPLKEI IIAGGEEVKR AVEKYGYIIK
EQGNIKEIKF GEVEGKYIVK PNYRELGKRY KSEVPKVVEA LMKVDGKELM EKLKEGSVII
DGYEIKPEYV SIKVEIPDNI AGVEFSKGTV FINTEIDEEL LKEGLMREVI RRIQAMRKEL
DLDIEERIKF KIEGLEFEDK YIKIIEKEVR GELSDIESSD YSKDWEIKTP TGEKYEIRIH
IKRI
//
