ID E4NLP6_HALBP Unreviewed; 1044 AA.
AC E4NLP6;
DT 08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT 08-FEB-2011, sequence version 1.
DT 27-MAR-2024, entry version 85.
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 ECO:0000313|EMBL:ELY29583.1};
GN OrderedLocusNames=Hbor_16810 {ECO:0000313|EMBL:ADQ67249.1};
GN ORFNames=C499_05850 {ECO:0000313|EMBL:ELY29583.1};
OS Halogeometricum borinquense (strain ATCC 700274 / DSM 11551 / JCM 10706 /
OS KCTC 4070 / PR3).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC Haloferacaceae; Halogeometricum.
OX NCBI_TaxID=469382 {ECO:0000313|EMBL:ADQ67249.1, ECO:0000313|Proteomes:UP000006663};
RN [1] {ECO:0000313|EMBL:ADQ67249.1, ECO:0000313|Proteomes:UP000006663}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700274 / DSM 11551 / JCM 10706 / KCTC 4070 / PR3
RC {ECO:0000313|Proteomes:UP000006663}, and PR 3
RC {ECO:0000313|EMBL:ADQ67249.1};
RX PubMed=21304651; DOI=10.4056/sigs.23264;
RA Malfatti S., Tindall B.J., Schneider S., Fahnrich R., Lapidus A.,
RA Labuttii K., Copeland A., Glavina Del Rio T., Nolan M., Chen F., Lucas S.,
RA Tice H., Cheng J.F., Bruce D., Goodwin L., Pitluck S., Anderson I.,
RA Pati A., Ivanova N., Mavromatis K., Chen A., Palaniappan K.,
RA D'haeseleer P., Goker M., Bristow J., Eisen J.A., Markowitz V.,
RA Hugenholtz P., Kyrpides N.C., Klenk H.P., Chain P.;
RT "Complete genome sequence of Halogeometricum borinquense type strain
RT (PR3).";
RL Stand. Genomic Sci. 1:150-159(2009).
RN [2] {ECO:0000313|EMBL:ELY29583.1, ECO:0000313|Proteomes:UP000011585}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 11551 {ECO:0000313|EMBL:ELY29583.1,
RC ECO:0000313|Proteomes:UP000011585};
RX PubMed=25393412; DOI=10.1371/journal.pgen.1004784;
RA Becker E.A., Seitzer P.M., Tritt A., Larsen D., Krusor M., Yao A.I., Wu D.,
RA Madern D., Eisen J.A., Darling A.E., Facciotti M.T.;
RT "Phylogenetically driven sequencing of extremely halophilic archaea reveals
RT strategies for static and dynamic osmo-response.";
RL PLoS Genet. 10:E1004784-E1004784(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: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; CP001690; ADQ67249.1; -; Genomic_DNA.
DR EMBL; AOHT01000015; ELY29583.1; -; Genomic_DNA.
DR RefSeq; WP_006054487.1; NZ_AOHT01000015.1.
DR AlphaFoldDB; E4NLP6; -.
DR STRING; 469382.Hbor_16810; -.
DR GeneID; 9993500; -.
DR KEGG; hbo:Hbor_16810; -.
DR PATRIC; fig|469382.19.peg.1147; -.
DR eggNOG; arCOG00807; Archaea.
DR HOGENOM; CLU_001493_1_1_2; -.
DR OrthoDB; 30823at2157; -.
DR Proteomes; UP000006663; Chromosome.
DR Proteomes; UP000011585; 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 Gene3D; 3.90.740.10; Valyl/Leucyl/Isoleucyl-tRNA synthetase, editing domain; 1.
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}; Reference proteome {ECO:0000313|Proteomes:UP000006663};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02003}.
FT DOMAIN 19..634
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 683..829
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 47..57
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT MOTIF 597..601
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 600
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1044 AA; 118298 MW; 0518F73981AED2ED CRC64;
MDDLSDQYTP ADIESVVGDY WDEENAYEAT KEAHADDPAF FFVDGPPYTS GQMHLGTAWN
KTLKDAIIRY KRMTGHRVTD RPGYDMHGLP IEVKVEEELG FETKRDIEEY GMESFIDECK
SFAERNREAM DDDFQSIGVW MDWDDPYKTL SPEYMEAAWW AFDQVADRGL VERGKRSVNY
CPRCQTAIAA NEVEYDEIDS PSIYVKFPLE DREGSLVIWT TTPWTIPANT FVAVDGEMTY
QAVRAEKGGE SEVLYLAEPC VEDVLKKGRY EDYEVVEELS GEEMVGWEYD NPLAGHLNEY
ADFEGAGEVY TAEYVEADRT GLVHSAPGHG QEDFARGQDL GLDVFVPVDG RGEFTEQAGD
YAGTFVRDAN PDIIEDLEAD GSLLHSGEHS HRYGHCWRCD TDIIFLATDQ WFITVTDVKD
ELLDNIEDSE WHPQWARDNR FRDFVADAPD WNISRQRYWG IPLPIWESED GEDFIVVGTR
EELAERADQD VDPGELDLHR PSVDPLTITE DGTTYERVPD VFDVWIDSSV ATWGTLDYPG
NETDFEELWP ADLIVEAHDQ TRGWFWSQLG MGTAARGEIP YEEVLMHGFA NDENGRKMSK
SLGNIVTPEE AIDRAGRDPL RAYLLSHDQQ GVDLSFDWDG LADTQSALNI FWNVFRFPLP
YMELDGYDPA NPDLSAGELS VVDEWVLSRL QTVKADVADA WDDYEVHDAL NAILDFVTED
VSRFYVKAIR ERMWEEEDSE SKRGAYATLA TVLNETVQLI APFTPYVAER MYQHLDGSET
TVHALDYPTV DEAWRDEELE RNMAVLRNVE EAAANARQQG ERKLRWPVQR VVVASEDDEV
AEAVEALSDL LADRVNTRTI EVVETFDELV EYADPQMGVI GPAFGGDAQK VMQAVKGVPR
EEVESGVEVD GETVELTDEM VEYRAEPPEN VYDAEFAATD GTDGGVVYVD TSLTEEIEAE
GYARDVIRRI QEMRKRLSLD VEEEIAVSLD VQDDRVADLV YRHEDLIAEE VRATTLNSDG
EDADLTEEWD IEGVTVVISI AQTA
//
