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SYI1_BACAN
ID   SYI1_BACAN              Reviewed;         921 AA.
AC   Q81WE4; Q6HUJ1; Q6KNS7;
DT   20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 134.
DE   RecName: Full=Isoleucine--tRNA ligase 1 {ECO:0000255|HAMAP-Rule:MF_02002};
DE            EC=6.1.1.5 {ECO:0000255|HAMAP-Rule:MF_02002};
DE   AltName: Full=Isoleucyl-tRNA synthetase 1 {ECO:0000255|HAMAP-Rule:MF_02002};
DE            Short=IleRS 1 {ECO:0000255|HAMAP-Rule:MF_02002};
GN   Name=ileS1 {ECO:0000255|HAMAP-Rule:MF_02002};
GN   OrderedLocusNames=BA_4034, GBAA_4034, BAS3746;
OS   Bacillus anthracis.
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=1392;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ames / isolate Porton;
RX   PubMed=12721629; DOI=10.1038/nature01586;
RA   Read T.D., Peterson S.N., Tourasse N.J., Baillie L.W., Paulsen I.T.,
RA   Nelson K.E., Tettelin H., Fouts D.E., Eisen J.A., Gill S.R.,
RA   Holtzapple E.K., Okstad O.A., Helgason E., Rilstone J., Wu M.,
RA   Kolonay J.F., Beanan M.J., Dodson R.J., Brinkac L.M., Gwinn M.L.,
RA   DeBoy R.T., Madpu R., Daugherty S.C., Durkin A.S., Haft D.H., Nelson W.C.,
RA   Peterson J.D., Pop M., Khouri H.M., Radune D., Benton J.L., Mahamoud Y.,
RA   Jiang L., Hance I.R., Weidman J.F., Berry K.J., Plaut R.D., Wolf A.M.,
RA   Watkins K.L., Nierman W.C., Hazen A., Cline R.T., Redmond C., Thwaite J.E.,
RA   White O., Salzberg S.L., Thomason B., Friedlander A.M., Koehler T.M.,
RA   Hanna P.C., Kolstoe A.-B., Fraser C.M.;
RT   "The genome sequence of Bacillus anthracis Ames and comparison to closely
RT   related bacteria.";
RL   Nature 423:81-86(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ames ancestor;
RX   PubMed=18952800; DOI=10.1128/jb.01347-08;
RA   Ravel J., Jiang L., Stanley S.T., Wilson M.R., Decker R.S., Read T.D.,
RA   Worsham P., Keim P.S., Salzberg S.L., Fraser-Liggett C.M., Rasko D.A.;
RT   "The complete genome sequence of Bacillus anthracis Ames 'Ancestor'.";
RL   J. Bacteriol. 191:445-446(2009).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sterne;
RA   Brettin T.S., Bruce D., Challacombe J.F., Gilna P., Han C., Hill K.,
RA   Hitchcock P., Jackson P., Keim P., Longmire J., Lucas S., Okinaka R.,
RA   Richardson P., Rubin E., Tice H.;
RT   "Complete genome sequence of Bacillus anthracis Sterne.";
RL   Submitted (JAN-2004) 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: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; AE016879; AAP27760.1; -; Genomic_DNA.
DR   EMBL; AE017334; AAT33151.1; -; Genomic_DNA.
DR   EMBL; AE017225; AAT56048.1; -; Genomic_DNA.
DR   RefSeq; NP_846274.1; NC_003997.3.
DR   RefSeq; WP_000455959.1; NZ_WXXJ01000026.1.
DR   RefSeq; YP_029997.1; NC_005945.1.
DR   AlphaFoldDB; Q81WE4; -.
DR   SMR; Q81WE4; -.
DR   IntAct; Q81WE4; 1.
DR   STRING; 260799.BAS3746; -.
DR   DNASU; 1086630; -.
DR   EnsemblBacteria; AAP27760; AAP27760; BA_4034.
DR   EnsemblBacteria; AAT33151; AAT33151; GBAA_4034.
DR   GeneID; 45023724; -.
DR   KEGG; ban:BA_4034; -.
DR   KEGG; bar:GBAA_4034; -.
DR   KEGG; bat:BAS3746; -.
DR   PATRIC; fig|198094.11.peg.4005; -.
DR   eggNOG; COG0060; Bacteria.
DR   HOGENOM; CLU_001493_7_0_9; -.
DR   OMA; HLGTAWN; -.
DR   Proteomes; UP000000427; Chromosome.
DR   Proteomes; UP000000594; 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; cd07960; Anticodon_Ia_Ile_BEm; 1.
DR   Gene3D; 3.40.50.620; -; 2.
DR   Gene3D; 3.90.740.10; -; 1.
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; Reference proteome; Zinc.
FT   CHAIN           1..921
FT                   /note="Isoleucine--tRNA ligase 1"
FT                   /id="PRO_0000098344"
FT   MOTIF           57..67
FT                   /note="'HIGH' region"
FT   MOTIF           593..597
FT                   /note="'KMSKS' region"
FT   BINDING         552
FT                   /ligand="L-isoleucyl-5'-AMP"
FT                   /ligand_id="ChEBI:CHEBI:178002"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         596
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         888
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         891
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         908
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT   BINDING         911
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ   SEQUENCE   921 AA;  104611 MW;  4B383BCCC606348B CRC64;
     MEYKNTLLMP KTEFPMRGNL PKREPAMQEK WAEMNIYETV QEHTKGRPLF VLHDGPPYAN
     GDIHMGHALN KVLKDFIVRY KSMTGFCAPY VPGWDTHGLP IEQALTNKGV KRKEMTVAEF
     RKLCAEYAYE QVERQREQFK RLGVRADWDN PYITLEPAYE AQQIKVFGDM AKKGYIYKGQ
     KPVYWSPTSE SALAEAEIEY QDKKSASIYV AFSVKDGKNV LEGDEKYIIW TTTPWTLPAN
     LGISVHPELE YAIVKVNDEK YIIASELFET VAKTLEWENA EVVKTVKGSE LEYTVAKHPF
     YDRDSLVMLG DHVTTDAGTG CVHTAPGHGE DDFIVGKKYG LEVLCPVDDK GVLTEEAPGF
     EGLFYDKANK PITEKLEEVG ALLKLTFITH SYPHDWRTKK PIIFRATAQW FASIEAFRKE
     LLEAVAETKW VPAWGETRLH NMVRDRGDWC ISRQRAWGVP IPVFYAENGD PIITDETINH
     VADLFREHGS NVWFEREAKD LLPEGFTHPG SPNGEFRKET DIMDVWFDSG SSHQAVLEER
     DDLQRPADLY LEGSDQYRGW FNSSLSTAVA VTGKAPYKGV LSHGFVLDGE GRKMSKSIGN
     IVVPKKIMDQ LGGDILRLWV SSVDYQSDVR ISDDILKQVA EVYRKIRNTF RFLLGNLDDF
     KPSENTVAVA ELREVDRYML VKLNDLITKV KEAYETYDFA AVYHAIHNFC TIDLSSFYLD
     FAKDILYIEG ANHEDRRAIQ TVLYDVLVAL TKLVTPILPH TADEVWPYIP GVTEESVQLT
     DMPEAVQLDD AEALKTKWDA FMTLRDDVLK ALEVARNEKV IGKSLNASIT LYPTAEMKAM
     LESINEDLKQ LFIVSEYKLG GMMEEAPADA PKYEHTAVVV AQATGETCER CWVVSETIGK
     DAEHETLCER CATVVKENYV K
 
 
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