ID C6WU43_METML Unreviewed; 938 AA.
AC C6WU43;
DT 22-SEP-2009, integrated into UniProtKB/TrEMBL.
DT 22-SEP-2009, sequence version 1.
DT 27-MAR-2024, entry version 96.
DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000256|HAMAP-Rule:MF_02002};
DE EC=6.1.1.5 {ECO:0000256|HAMAP-Rule:MF_02002};
DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000256|HAMAP-Rule:MF_02002};
DE Short=IleRS {ECO:0000256|HAMAP-Rule:MF_02002};
GN Name=ileS {ECO:0000256|HAMAP-Rule:MF_02002};
GN OrderedLocusNames=Mmol_0532 {ECO:0000313|EMBL:ACT47442.1};
OS Methylotenera mobilis (strain JLW8 / ATCC BAA-1282 / DSM 17540).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Nitrosomonadales;
OC Methylophilaceae; Methylotenera.
OX NCBI_TaxID=583345 {ECO:0000313|EMBL:ACT47442.1, ECO:0000313|Proteomes:UP000002742};
RN [1] {ECO:0000313|Proteomes:UP000002742}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JLW8 / ATCC BAA-1282 / DSM 17540
RC {ECO:0000313|Proteomes:UP000002742};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA Goodwin L., Pitluck S., LaButti K.M., Clum A., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Mikhailova N., Kayluzhnaya M., Chistoserdova L.;
RT "Complete sequence of Methylotenera mobilis JLW8.";
RL Submitted (JUL-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACT47442.1, ECO:0000313|Proteomes:UP000002742}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JLW8 / ATCC BAA-1282 / DSM 17540
RC {ECO:0000313|Proteomes:UP000002742};
RX PubMed=21622745; DOI=10.1128/JB.00404-11;
RA Lapidus A., Clum A., Labutti K., Kaluzhnaya M.G., Lim S., Beck D.A.,
RA Glavina Del Rio T., Nolan M., Mavromatis K., Huntemann M., Lucas S.,
RA Lidstrom M.E., Ivanova N., Chistoserdova L.;
RT "Genomes of three methylotrophs from a single niche uncover genetic and
RT metabolic divergence of Methylophilaceae.";
RL J. Bacteriol. 193:3757-3764(2011).
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_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;
CC Evidence={ECO:0000256|ARBA:ARBA00000114, ECO:0000256|HAMAP-
CC Rule:MF_02002};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02002};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_02002};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_02002}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|HAMAP-Rule:MF_02002}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC IleS type 1 subfamily. {ECO:0000256|ARBA:ARBA00006887,
CC ECO:0000256|HAMAP-Rule:MF_02002}.
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DR EMBL; CP001672; ACT47442.1; -; Genomic_DNA.
DR RefSeq; WP_015831479.1; NC_012968.1.
DR AlphaFoldDB; C6WU43; -.
DR STRING; 583345.Mmol_0532; -.
DR KEGG; mmb:Mmol_0532; -.
DR eggNOG; COG0060; Bacteria.
DR HOGENOM; CLU_001493_7_1_4; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000002742; 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 CDD; cd00818; IleRS_core; 1.
DR Gene3D; 1.10.730.20; -; 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_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 NCBIfam; TIGR00392; ileS; 1.
DR PANTHER; PTHR42765:SF1; ISOLEUCINE--TRNA LIGASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR42765; SOLEUCYL-TRNA SYNTHETASE; 1.
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; 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_02002};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_02002};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_02002};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_02002};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_02002};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_02002};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_02002}; Reference proteome {ECO:0000313|Proteomes:UP000002742};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02002}.
FT DOMAIN 33..654
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 699..849
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT DOMAIN 900..927
FT /note="Zinc finger FPG/IleRS-type"
FT /evidence="ECO:0000259|Pfam:PF06827"
FT MOTIF 63..73
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT MOTIF 616..620
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 575
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 619
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 901
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 904
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 921
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 924
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
SQ SEQUENCE 938 AA; 104845 MW; 99E99A39B6770959 CRC64;
MTEDNKEQSK YKLNLPETAF PMRGDLAKRE PAWLKSWQDK KLYTRIRNAR KGAKKFILHD
GPPYANGDIH IGHAVNKILK DIIVKSKTFS GFDAPYVPGW DCHGLPIELV VEKNHGKNID
PAQFRELCRA YAAEQVEKQK KDFIRLGVQA DWDNPYLTMD YQTEADIMRA LGDIYKNGYL
YQGSKPVHWC VDCGSALAEA EVEYEDVNSP AIDVGFKVVD NAALSKAFGV TVAGDAYAVI
WTTTPWTLPA NQAVSVHPEL DYDLIQTSKG LLILANALAT ATLTRYAEAD AKVLATCKGL
ALKYLQLEHP FDARQVPVIT GEHVTTEAGT GLVHTAAAHG NDDWLVMRAN FPEQKPRVLI
GSDGKFFSSE LVEFSAIRGL TRQDANKVIL AKMQESGHLL ASARLNHSFP HCWRHKTPLM
QLATHQWFIG MNAQDINGKA LREHANKAVD ETEFFPSWGR ARLEAMIKNR PDWCVSRQRN
WGVPMPLFVH KETGEPHPKT AELLEQAALL TEKTGVEAWF SLDGTAFLAQ HAPENAEQYK
KVTDTLDVWF DSGSTHAAVL KRRPELAFPA DLYLEGSDQH RGWFQSSLLT GCAIDGHAPY
KALLTHGFVV DGSGHKMSKS KGNVVAPQKV MDTYGADILR LWVASTDYSG ELTISDEILK
RVAESYRRIR NTLRFLLANL ADFDATKDLL PVSEWLEIDR YALHLTDKLQ TGILADYDRY
EFHLAVQKFV SFCSEDLGGF YLDILKDRLY TTGETSHARR VAQSTLHHIT HTMMRLMAPI
LSFTADEIWQ TLGLDADKTV FEELWYSLPA HGLNGAAIQS WQTVLEVRAL ANKAIEEKRA
AGLVGSSLQS ELDIYADGAT FEALSRLQDD LRFVLITSRA SLHQRSGTLE VQVAPSAHTK
CDRCWHYRAD VGADAAHPHI CGRCVSNLFG KGEVRSHA
//
