SYI_FRAP2
ID SYI_FRAP2 Reviewed; 935 AA.
AC B0TZQ5;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 08-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 86.
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=Fphi_0396;
OS Francisella philomiragia subsp. philomiragia (strain ATCC 25017 / FSC 153 /
OS O#319-036).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC Francisellaceae; Francisella.
OX NCBI_TaxID=484022;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 25017 / FSC 153 / O#319-036;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA Hauser L., Richardson P.;
RT "Complete sequence of chromosome of Francisella philomiragia subsp.
RT philomiragia ATCC 25017.";
RL Submitted (DEC-2007) 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; CP000937; ABZ86614.1; -; Genomic_DNA.
DR RefSeq; WP_012279887.1; NC_010336.1.
DR AlphaFoldDB; B0TZQ5; -.
DR SMR; B0TZQ5; -.
DR STRING; 484022.Fphi_0396; -.
DR EnsemblBacteria; ABZ86614; ABZ86614; Fphi_0396.
DR KEGG; fph:Fphi_0396; -.
DR eggNOG; COG0060; Bacteria.
DR HOGENOM; CLU_001493_7_0_6; -.
DR OMA; HLGTAWN; -.
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; Zinc.
FT CHAIN 1..935
FT /note="Isoleucine--tRNA ligase"
FT /id="PRO_1000088546"
FT MOTIF 58..68
FT /note="'HIGH' region"
FT MOTIF 599..603
FT /note="'KMSKS' region"
FT BINDING 558
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 602
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 897
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 900
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 917
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 920
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ SEQUENCE 935 AA; 107504 MW; C82D382AC612D76C CRC64;
MSDYKDTLNL PKTSFSMKGN LANKEPMILN KWEKQGIYKK IREHFAGREK FVLHDGPPYA
NGSIHVGHAV NKILKDIIVK SKTLSGYDAP YIPTWDCHGL PIELQVEKKH GKAGQKISED
AFRKECRKYA KQQVEIQKKD FKRLGVLGQW DQPYLTMDFS YEANMIRTLA KIIENKHLTK
GFKPVHWCTD CGSALAEAEV EYKDKISPAI DVKFKIKDKE KLAKAFGLES LNHDAFAIIW
TTTPWTLPAN QAIAVNNQLN YSLVKIEDFY IILAENLVEQ TLKRYAIENA QVIANTSGYK
LIGIIAEHPF YSRHVPILHG DHVTDDSGTG MVHTAPTHGV EDFTLGKEHD LSMEIFVKGN
GCYSENTKLF AGEFVFKAND RVIELLGEKK RLMNFDKLKH SYPHCWRHKT PLIFRATPQW
FISMEKEGLR EKAIEAIKET SWAPSWGQAR IEGMIKDRPD WCISRQRTWG VPLPLFIHKE
TEELHPNTIE ILHKVAQKIE KGGIEAWFNA DDNEFIAETD KYKRVKDTLD VWFDSGSSSM
CILDIDKSLS YPADLYLEGS DQHRGWFQTS LLVAMSAKGN QPYKEVFTHG FVVDEHGRKM
SKSLGNVTSP QDIYNTLGAD ILRLWTASTD YKSEMAVSDQ ILKRTADTYR RLRNTARFLL
SNLEGFNPET DIIEFDKLVK LDQWAIAKTK EFQDKIIEAY DKYQTHTVAQ LIHHFCSIEM
GSFYLDIIKD RQYTAKADGH PRKSAQTAIY HIVHALVRWM APILSYTADE IWEATPKTTD
LPIQLCEWYT DLKSFNDQDE LNLEFWAKIQ EIRSEVNRIL EIKRNEEVIK ASLEAEIIIY
ADNDNYKLLE KLGNELRFLL ISSKASLRAI EEKTNNSIES NITGLNIEVN KIEEPKCERC
WHRSATVGQN EEYQDICSRC VENITTEAGE SREFA
