ID A0A498C0Y2_9MICO Unreviewed; 1119 AA.
AC A0A498C0Y2;
DT 05-JUN-2019, integrated into UniProtKB/TrEMBL.
DT 05-JUN-2019, sequence version 1.
DT 24-JAN-2024, entry version 19.
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=C7474_1703 {ECO:0000313|EMBL:RLK49544.1};
OS Microbacterium telephonicum.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Microbacteriaceae;
OC Microbacterium.
OX NCBI_TaxID=1714841 {ECO:0000313|EMBL:RLK49544.1, ECO:0000313|Proteomes:UP000273158};
RN [1] {ECO:0000313|EMBL:RLK49544.1, ECO:0000313|Proteomes:UP000273158}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=S2T63 {ECO:0000313|EMBL:RLK49544.1,
RC ECO:0000313|Proteomes:UP000273158};
RX PubMed=26203337; DOI=.1186/s40793-015-0017-x;
RA Whitman W.B., Woyke T., Klenk H.P., Zhou Y., Lilburn T.G., Beck B.J.,
RA De Vos P., Vandamme P., Eisen J.A., Garrity G., Hugenholtz P.,
RA Kyrpides N.C.;
RT "Genomic Encyclopedia of Bacterial and Archaeal Type Strains, Phase III:
RT the genomes of soil and plant-associated and newly described type
RT strains.";
RL Stand. Genomic Sci. 10:26-26(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|ARBA:ARBA00007078,
CC 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:RLK49544.1}.
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DR EMBL; RCDB01000002; RLK49544.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A498C0Y2; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000273158; 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; 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};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, 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:UP000273158};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02003}.
FT DOMAIN 24..681
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 738..880
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 54..64
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT MOTIF 647..651
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 650
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1119 AA; 122792 MW; 36AF2A281C823934 CRC64;
MVYPRTDTGP VVPSPRFPDV ERDVLAFWQQ DDTFRASIAQ REGAEEWVFY DGPPFANGLP
HYGHLLTGYA KDLFPRFQTM CGKKVDRVFG WDTHGLPAEL EAMKQLGLTE KSEIVEMGID
AFNAKARESV LAYTHEWEDY VTRQARWVDF ERGYKTLDTG FMESVLWAFK ELWDKGLAYE
GHRVLPYCWR DETPLSNHEL RMDDDVYKMR QDPSVTVTFP LVGAKAEALG LTGVRALAWT
TTPWTLPTNL ALAVGPDISY VVVPGGPNGA ADVPAGGDAE GATAHRYLLA AELLGGHAKE
LGYDDAAAAQ AAVERTVVGA ELADVHYDRL FDYYADADTW GTGTSWRILV DDYVTTSDGT
GIVHQAPAYG EDDQRVTEAA GIPLIMSLDD GGRFLPQATD VAGELWMDAN RPLIRLLKAQ
GRLLREASYE HSYPHCWRCR NPLIYKAVSS WFVRVTQIKD RLIELNEQIT WAPENVKHGQ
FGKWLEGARD WSISRNRFWG SPIPVWKSDD PEYPRVDVYG SLADLERDFG RLPVNDAGEV
DLHRPYIDDL TRPNPDDPTG RSTMRRIEDV FDVWFDSGSM PYAQVHYPFE NREWFDSHAP
ADFIVEYIGQ TRGWFYVMHV LSGALFDRPA FAGVACHGIV LGSDGQKMSK SLRNYPDVSE
VFDRDGSDAM RWFLMASSVL RGGNLIVTEE GIRAGVREFL LPLWSAWYFF STYANAAGGA
GCAGYTARWR TDSTNVLDRY ILALTGDLVR GVAADLEALD STTAAAKLRD FAEALTNWYI
RRSRDRFWGN VTDDPASTEA FDTLYTVLET LTRVAAPLIP LVGERIWQGL TGGRSVHLTD
WPDAGAFPAA TDIRTAMDAV REVSSVANAL RKKEGKRVRL PLPQLTVAVP DAAALAQFEA
IIADELNVKR VSLVESTEGL AEQYGISQRL AVNARAAGPR LGKQVQHVIA GAKAGLWTET
DGVVVVDGIA LEPGEYDLTL EAGGVAEGTA IALLSGGGFL LLDTATTPEL EAEGLARDAI
RVVQEARRSA GLEVGDRIVL ALNVTPAVAA AIEAHGSLIA EETLAVAFAV QATDDLDALV
DEVSSPGDGV FRSGARALGT DKSPIVVTID GNVIAGGAV
//
