(data stored in ACNUC7421 zone)

SWISSPROT: SYI_ECODH

ID   SYI_ECODH               Reviewed;         938 AA.
AC   B1XBF1;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   05-JUL-2017, entry version 68.
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};
GN   OrderedLocusNames=ECDH10B_0027;
OS   Escherichia coli (strain K12 / DH10B).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=316385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / DH10B;
RX   PubMed=18245285; DOI=10.1128/JB.01695-07;
RA   Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA   Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA   Posfai G., Weinstock G.M., Blattner F.R.;
RT   "The complete genome sequence of Escherichia coli DH10B: insights into
RT   the biology of a laboratory workhorse.";
RL   J. Bacteriol. 190:2597-2606(2008).
CC   -!- FUNCTION: Catalyzes the attachment of isoleucine to tRNA(Ile). As
CC       IleRS can inadvertently accommodate and process structurally
CC       similar amino acids such as valine, to avoid such errors it has
CC       two additional distinct tRNA(Ile)-dependent editing activities.
CC       One activity is designated as 'pretransfer' editing and involves
CC       the hydrolysis of activated Val-AMP. The other activity is
CC       designated 'posttransfer' editing and involves deacylation of
CC       mischarged Val-tRNA(Ile). {ECO:0000255|HAMAP-Rule:MF_02002}.
CC   -!- CATALYTIC ACTIVITY: ATP + L-isoleucine + tRNA(Ile) = AMP +
CC       diphosphate + L-isoleucyl-tRNA(Ile). {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-
CC       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
CC       aminoacylation and one for editing. The misactivated valine is
CC       translocated from the active site to the editing site, which
CC       sterically excludes the correctly activated isoleucine. The single
CC       editing site contains two valyl binding pockets, one specific for
CC       each substrate (Val-AMP or Val-tRNA(Ile)). {ECO:0000255|HAMAP-
CC       Rule:MF_02002}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase
CC       family. IleS type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_02002}.
DR   EMBL; CP000948; ACB01231.1; -; Genomic_DNA.
DR   RefSeq; WP_001286857.1; NC_010473.1.
DR   ProteinModelPortal; B1XBF1; -.
DR   EnsemblBacteria; ACB01231; ACB01231; ECDH10B_0027.
DR   KEGG; ecd:ECDH10B_0027; -.
DR   eggNOG; ENOG4105C07; Bacteria.
DR   eggNOG; COG0060; LUCA.
DR   HOGENOM; HOG000246402; -.
DR   KO; K01870; -.
DR   OMA; ATEQWFI; -.
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-KW.
DR   GO; GO:0004822; F:isoleucine-tRNA ligase activity; IEA:UniProtKB-EC.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0000049; F:tRNA binding; IEA:InterPro.
DR   GO; GO:0006428; P:isoleucyl-tRNA aminoacylation; IEA:InterPro.
DR   CDD; cd07960; Anticodon_Ia_Ile_BEm; 1.
DR   Gene3D; 1.10.730.10; -; 1.
DR   Gene3D; 3.40.50.620; -; 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;
DR   PRODOM; B1XBF1.
DR   SWISS-2DPAGE; B1XBF1.
KW   Acetylation; Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm;
KW   Ligase; Metal-binding; Nucleotide-binding; Protein biosynthesis; Zinc.
FT   CHAIN         1    938       Isoleucine--tRNA ligase.
FT                                /FTId=PRO_1000189160.
FT   MOTIF        58     68       "HIGH" region.
FT   MOTIF       602    606       "KMSKS" region.
FT   METAL       901    901       Zinc. {ECO:0000255|HAMAP-Rule:MF_02002}.
FT   METAL       904    904       Zinc. {ECO:0000255|HAMAP-Rule:MF_02002}.
FT   METAL       921    921       Zinc. {ECO:0000255|HAMAP-Rule:MF_02002}.
FT   METAL       924    924       Zinc. {ECO:0000255|HAMAP-Rule:MF_02002}.
FT   BINDING     561    561       Aminoacyl-adenylate. {ECO:0000255|HAMAP-
FT                                Rule:MF_02002}.
FT   BINDING     605    605       ATP. {ECO:0000255|HAMAP-Rule:MF_02002}.
FT   MOD_RES     183    183       N6-acetyllysine. {ECO:0000255|HAMAP-
FT                                Rule:MF_02002}.
SQ   SEQUENCE   938 AA;  104297 MW;  238CEDAF461F01D5 CRC64;
     MSDYKSTLNL PETGFPMRGD LAKREPGMLA RWTDDDLYGI IRAAKKGKKT FILHDGPPYA
     NGSIHIGHSV NKILKDIIVK SKGLSGYDSP YVPGWDCHGL PIELKVEQEY GKPGEKFTAA
     EFRAKCREYA ATQVDGQRKD FIRLGVLGDW SHPYLTMDFK TEANIIRALG KIIGNGHLHK
     GAKPVHWCVD CRSALAEAEV EYYDKTSPSI DVAFQAVDQD ALKAKFAVSN VNGPISLVIW
     TTTPWTLPAN RAISIAPDFD YALVQIDGQA VILAKDLVES VMQRIGVTDY TILGTVKGAE
     LELLRFTHPF MGFDVPAILG DHVTLDAGTG AVHTAPGHGP DDYVIGQKYG LETANPVGPD
     GTYLPGTYPT LDGVNVFKAN DIVVALLQEK GALLHVEKMQ HSYPCCWRHK TPIIFRATPQ
     WFVSMDQKGL RAQSLKEIKG VQWIPDWGQA RIESMVANRP DWCISRQRTW GVPMSLFVHK
     DTEELHPRTL ELMEEVAKRV EVDGIQAWWD LDAKEILGDE ADQYVKVPDT LDVWFDSGST
     HSSVVDVRPE FAGHAADMYL EGSDQHRGWF MSSLMISTAM KGKAPYRQVL THGFTVDGQG
     RKMSKSIGNT VSPQDVMNKL GADILRLWVA STDYTGEMAV SDEILKRAAD SYRRIRNTAR
     FLLANLNGFD PAKDMVKPEE MVVLDRWAVG CAKAAQEDIL KAYEAYDFHE VVQRLMRFCS
     VEMGSFYLDI IKDRQYTAKA DSVARRSCQT ALYHIAEALV RWMAPILSFT ADEVWGYLPG
     EREKYVFTGE WYEGLFGLAD SEAMNDAFWD ELLKVRGEVN KVIEQARADK KVGGSLEAAV
     TLYAEPELSA KLTALGDELR FVLLTSGATV ADYNDAPADA QQSEVLKGLK VALSKAEGEK
     CPRCWHYTQD VGKVAEHAEI CGRCVSNVAG DGEKRKFA
//

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