ID A0A0P4RG58_9ACTN Unreviewed; 1045 AA.
AC A0A0P4RG58;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 24-JAN-2024, entry version 41.
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:GAO12742.1};
GN ORFNames=TPA0598_12_01100 {ECO:0000313|EMBL:GAO12742.1};
OS Streptomyces lydicamycinicus.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1546107 {ECO:0000313|EMBL:GAO12742.1, ECO:0000313|Proteomes:UP000048965};
RN [1] {ECO:0000313|Proteomes:UP000048965}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 110027 {ECO:0000313|Proteomes:UP000048965};
RA Komaki H., Ichikawa N., Katano-Makiyama Y., Hosoyama A., Hashimoto M.,
RA Uohara A., Kitahashi Y., Ohji S., Kimura A., Yamazoe A., Igarashi Y.,
RA Fujita N.;
RT "Whole genome shotgun sequence of Streptomyces sp. NBRC 110027.";
RL Submitted (SEP-2014) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:GAO12742.1, ECO:0000313|Proteomes:UP000048965}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 110027 {ECO:0000313|EMBL:GAO12742.1,
RC ECO:0000313|Proteomes:UP000048965};
RX PubMed=26380643; DOI=10.1186/s40793-015-0046-5;
RA Komaki H., Ichikawa N., Hosoyama A., Fujita N., Igarashi Y.;
RT "Draft genome sequence of marine-derived Streptomyces sp. TP-A0598, a
RT producer of anti-MRSA antibiotic lydicamycins.";
RL Stand. Genomic Sci. 10:58-58(2015).
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_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: 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:GAO12742.1}.
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DR EMBL; BBNO01000012; GAO12742.1; -; Genomic_DNA.
DR RefSeq; WP_042162061.1; NZ_BBNO01000012.1.
DR AlphaFoldDB; A0A0P4RG58; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000048965; 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; 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.
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:UP000048965};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02003}.
FT DOMAIN 23..626
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 685..830
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 53..63
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT MOTIF 598..602
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 601
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1045 AA; 115973 MW; 10EFE949F33BA2A1 CRC64;
MSPQPQYRQV PAQVDLPALE HAVLEFWQEQ KVFARTLQQS EGRPEWVFYE GPPTANGMPG
AHHIEARVFK DVFPRFRTMQ GYHVDRKAGW DCHGLPVELA VEKELGFSGK KDIEAYGIAE
FNAKCRESVT RHTDAFAELT TRMGYWTDLD APYRTMDPDY IESVWWSLKE IFGKGLLVQD
HRVAPWCPRC GTGLSDHELA QGYENVVDPS VFVRLPLTSG PLAGRAALLI WTTTPWTLVS
NTAVAAHPDV TYVVATDGTE QLVVAEPLLE KALGEGWTAT GESFTGREME RWAYERPFGL
VELDGANIVV NAEYVTTDDG TGLVHQAPAF GEDDLKTCKA YDLPVINPVR PDGTFEEQLA
LIGGQFFKKA DEALVADLDA RGLLFRHLAY EHSYPHCWRC HTALLYYAQP SWYIRTTAIK
DALLRENENT NWFPESVKHG RFGDWLNNNI DWALSRNRYW GTPLPIWRCE EDHLTCVGSL
AELTELTGTD QSDLDPHRPF IDAVTFPCPT CQGTATRVPE VIDAWYDSGS MPFAQWGYPY
RNKELFEKRY PAQFISEAID QTRGWFYTLM AVGTLVFDKS SYENVVCLGH ILAEDGRKMS
KHLGNTLQPI PLMDQHGADA VRWFMAAGGS PWAARRVGHS TIQEVVRKTL LTYWNTVAFQ
ALYARTSGWA PSAADPAPAD RPLLDRWLLG ELNGLVEQVT ESLEAFDTQR AGKLLSSFVD
DLSNWYVRRS RRRFWQGDAA ALRTLHEVIE TVTRLMAPLT PFVTERVWQD LVVPVTPDAP
DSVHLSTWPV ADRTLIDPAL SGQMQLVRRL VELGRATRAE SGVKTRQPLS RALVAAHGFA
GLSEDLRAQI AEELNVSSLA SLSEVGGSLV DTTAKANFRA LGKRFGKGVQ AVAKAVAAAD
AAALSLALRE GTASVEVDGE TVSLAPDEVI ITETPREGWS VASDAGATVA LDLEITPELR
RAGLARDAIR LIQDARKNSG LDVADRIALR WQSTDEEVRT ALTDHAGLIS DEVLATDFAP
GEADGSYGSA FADESLALTF RLRKA
//
