SYI_LEPIC
ID SYI_LEPIC Reviewed; 914 AA.
AC Q72PR7;
DT 20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 115.
DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_02002};
DE EC=6.1.1.5 {ECO:0000255|HAMAP-Rule:MF_02002};
DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02002};
DE Short=IleRS {ECO:0000255|HAMAP-Rule:MF_02002};
GN Name=ileS {ECO:0000255|HAMAP-Rule:MF_02002}; OrderedLocusNames=LIC_12400;
OS Leptospira interrogans serogroup Icterohaemorrhagiae serovar copenhageni
OS (strain Fiocruz L1-130).
OC Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX NCBI_TaxID=267671;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Fiocruz L1-130;
RX PubMed=15028702; DOI=10.1128/jb.186.7.2164-2172.2004;
RA Nascimento A.L.T.O., Ko A.I., Martins E.A.L., Monteiro-Vitorello C.B.,
RA Ho P.L., Haake D.A., Verjovski-Almeida S., Hartskeerl R.A., Marques M.V.,
RA Oliveira M.C., Menck C.F.M., Leite L.C.C., Carrer H., Coutinho L.L.,
RA Degrave W.M., Dellagostin O.A., El-Dorry H., Ferro E.S., Ferro M.I.T.,
RA Furlan L.R., Gamberini M., Giglioti E.A., Goes-Neto A., Goldman G.H.,
RA Goldman M.H.S., Harakava R., Jeronimo S.M.B., Junqueira-de-Azevedo I.L.M.,
RA Kimura E.T., Kuramae E.E., Lemos E.G.M., Lemos M.V.F., Marino C.L.,
RA Nunes L.R., de Oliveira R.C., Pereira G.G., Reis M.S., Schriefer A.,
RA Siqueira W.J., Sommer P., Tsai S.M., Simpson A.J.G., Ferro J.A.,
RA Camargo L.E.A., Kitajima J.P., Setubal J.C., Van Sluys M.A.;
RT "Comparative genomics of two Leptospira interrogans serovars reveals novel
RT insights into physiology and pathogenesis.";
RL J. Bacteriol. 186:2164-2172(2004).
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:0000255|HAMAP-Rule:MF_02002}.
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; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_02002};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_02002};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_02002};
CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_02002}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02002}.
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:0000255|HAMAP-Rule:MF_02002}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC IleS type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_02002}.
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DR EMBL; AE016823; AAS70969.1; -; Genomic_DNA.
DR RefSeq; WP_000005312.1; NC_005823.1.
DR AlphaFoldDB; Q72PR7; -.
DR SMR; Q72PR7; -.
DR PaxDb; Q72PR7; -.
DR EnsemblBacteria; AAS70969; AAS70969; LIC_12400.
DR GeneID; 61142280; -.
DR KEGG; lic:LIC_12400; -.
DR HOGENOM; CLU_001493_7_1_12; -.
DR OMA; HLGTAWN; -.
DR Proteomes; UP000007037; Chromosome I.
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; cd07960; Anticodon_Ia_Ile_BEm; 1.
DR Gene3D; 3.40.50.620; -; 2.
DR HAMAP; MF_02002; Ile_tRNA_synth_type1; 1.
DR InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR InterPro; IPR002300; aa-tRNA-synth_Ia.
DR InterPro; IPR033708; Anticodon_Ile_BEm.
DR InterPro; IPR002301; Ile-tRNA-ligase.
DR InterPro; IPR023585; Ile-tRNA-ligase_type1.
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 InterPro; IPR010663; Znf_FPG/IleRS.
DR Pfam; PF08264; Anticodon_1; 1.
DR Pfam; PF00133; tRNA-synt_1; 1.
DR Pfam; PF06827; zf-FPG_IleRS; 1.
DR PRINTS; PR00984; TRNASYNTHILE.
DR SUPFAM; SSF47323; SSF47323; 1.
DR SUPFAM; SSF50677; SSF50677; 1.
DR TIGRFAMs; TIGR00392; ileS; 1.
DR PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
PE 3: Inferred from homology;
KW Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW Nucleotide-binding; Protein biosynthesis; Zinc.
FT CHAIN 1..914
FT /note="Isoleucine--tRNA ligase"
FT /id="PRO_0000098409"
FT MOTIF 64..74
FT /note="'HIGH' region"
FT MOTIF 598..602
FT /note="'KMSKS' region"
FT BINDING 557
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 601
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 889
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 892
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 906
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 909
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ SEQUENCE 914 AA; 104366 MW; 31A0AC713E060F2E CRC64;
MSETQKENPY SSTVLLPKTD FPMKADLAKR EPAQIQSWKS GQIFRKMKEQ RKGKKEFVLH
DGPPYANGNF HLGHSLNKIV KDIIIKSKSL AGFYADMIPG WDCHGLPIEV QVLKNLGKKA
RETGPEELRR LCRNYAEEFV GKQGEDLSRF LCFWEEDRIY KTMSPGFEAK IVEVFGELFQ
KGYVYRGKKP VYWSIDLATA HAEAEIEYYP HVSPSIYVKF PIVGEQKKFC LIWTTTPWTL
PANLGICFNR KIEYSFFKTE SGEELILADG LAESVTSTTG VSLNKVKSIS SDELSVLKFQ
HPFMDRISIS LFGDHVTLDA GTGCVHTAPG HGQDDYKVGL AAGLEPFSPV DDYGKYTDEF
PLMQGKKVFD ANPEIIQLLK DKGLLLHHSE FEHSYPHSWR SKKPLIFRAT PQWFFKMDFN
ELREKSLSAI DGVQWIPSWG ITRIRSMVET RPDWCLSRQR NWGVPIPAFT CESCGQTHID
DVSIQFFTKM VREKGIEIWY SEKAADLLPP GTKCGKCGSD SFKKGNDILD VWFDSGVSSF
AVLGERKDEP PADLYFEGSD QHRGWFQSSL WPSMALRGIP PYKTVLTHGY VLDEKGHPMS
KSLGNGIDPT ADVIQIYGAD ILRLWVSSLD FRDDIKVGKE SLKIVSEQYR KIRNTFRYLL
GNLDGHTSEQ NLPFEELEEL DLFYLSKLSQ FAEDVIANYE AYQFHQIYQK LILFCTVTLS
QDYFDMIRDR MYCDARNSKT RKSSATALQY ILETLCILTA PILSFTAEEV WVSNGKKDSV
FLQNFPDLKF WKNQNLEEKF ESVLQVREVV QKALEIARQE NKLGKSLEAG LEIVSKNGTN
LTKILPKETL EILFVVSQVH EKNPGLDVLS FYENEKFSVK VLKPVQVECP RCWRHTEDIS
KEGDLCGRCK SVVG
