ID A8FD08_BACP2 Unreviewed; 921 AA.
AC A8FD08;
DT 13-NOV-2007, integrated into UniProtKB/TrEMBL.
DT 13-NOV-2007, sequence version 1.
DT 27-MAR-2024, entry version 109.
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 ECO:0000313|EMBL:ABV62125.1};
GN OrderedLocusNames=BPUM_1442 {ECO:0000313|EMBL:ABV62125.1};
OS Bacillus pumilus (strain SAFR-032).
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Bacillus.
OX NCBI_TaxID=315750 {ECO:0000313|EMBL:ABV62125.1, ECO:0000313|Proteomes:UP000001355};
RN [1] {ECO:0000313|EMBL:ABV62125.1, ECO:0000313|Proteomes:UP000001355}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SAFR-032 {ECO:0000313|EMBL:ABV62125.1,
RC ECO:0000313|Proteomes:UP000001355};
RX PubMed=17895969; DOI=10.1371/journal.pone.0000928;
RA Gioia J., Yerrapragada S., Qin X., Jiang H., Igboeli O.C., Muzny D.,
RA Dugan-Rocha S., Ding Y., Hawes A., Liu W., Perez L., Kovar C., Dinh H.,
RA Lee S., Nazareth L., Blyth P., Holder M., Buhay C., Tirumalai M.R., Liu Y.,
RA Dasgupta I., Bokhetache L., Fujita M., Karouia F., Eswara Moorthy P.,
RA Siefert J., Uzman A., Buzumbo P., Verma A., Zwiya H., McWilliams B.D.,
RA Olowu A., Clinkenbeard K.D., Newcombe D., Golebiewski L., Petrosino J.F.,
RA Nicholson W.L., Fox G.E., Venkateswaran K., Highlander S.K.,
RA Weinstock G.M.;
RT "Paradoxical DNA repair and peroxide resistance gene conservation in
RT Bacillus pumilus SAFR-032.";
RL PLoS ONE 2:E928-E928(2007).
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 -!- 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}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_02002}.
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DR EMBL; CP000813; ABV62125.1; -; Genomic_DNA.
DR RefSeq; WP_012009888.1; NZ_VEIS01000003.1.
DR AlphaFoldDB; A8FD08; -.
DR STRING; 315750.BPUM_1442; -.
DR KEGG; bpu:BPUM_1442; -.
DR eggNOG; COG0060; Bacteria.
DR HOGENOM; CLU_001493_7_0_9; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000001355; 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: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; 1.10.10.830; Ile-tRNA synthetase CP2 domain-like; 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 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 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 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}.
FT DOMAIN 27..630
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 677..831
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 57..67
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT MOTIF 594..598
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 553
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
FT BINDING 597
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02002"
SQ SEQUENCE 921 AA; 104985 MW; C84D1ED8DFA47191 CRC64;
MNYKDTLLMP KTEFPMRGNL PNKEPEIQEE WAEKDIYQMV LERTKGRPTF ILHDGPPYAN
GDIHMGHALN KILKDFIVRF KSMNGFHAPY VPGWDTHGLP IETALTKNKK VKRKEMSTAE
FRKLCEEYAW KQIEGQRNQF KRLGVRADWD NPYVTLKPEY EAQQILVFGE MAKRGYIYKG
LKPVNWSPSS ESALAEAEIE YKDKRSPSIY VSFKVKDGKG VLENDEQFII WTTTPWTLPA
NLGICVHPNL EYSVLQVGAE RYVVASELVE QVAKTLGFEE YEVVKTLKGK ELDNVVAEHP
IYGRDSLVML GDHVTTDAGT GCVHTAPGHG EDDFIVSMKY GLDVLCPVDE KGVMTEEAPG
FEGLFYEDAN KAITEQLEAK GALKKLDFIT HSYPHDWRTK KPTIYRATAQ WFASIKDFRE
ALLDNIKETK WVPAWGETRL FNMVRDRGDW CISRQRVWGV PIPVFYAENG EPIITDETIQ
HVSQLFREHG SNIWFEKEAK ELLPEGFTHP GSPNGEFTKE QDIMDVWFDS GSSHQAVLEE
RDDLVRPADL YLEGSDQYRG WFNSSLSTAV AVTGKAPYKG VLSHGFTLDK EGRKMSKSLG
NTIDPTKVAK QLGAEILRLW VSSVNYQADH PVSDDILKQV AEVYRKIRNT FRFLHGNLFD
FDPAVNAVPV EELREVDQYI LIKLNKLIEK VKKAYDDYEF AVVYHAIHNF CTIELSSFYL
DFAKDVVYIE HADHPDRRSM QTVFYETLMA LVKLTAPILP HTADELWSHL SFVEEPSVQL
TDMPEGVTVS QADATEAKFD RFMEVRDDVL KALEIARNEK VIGRSLEASV TLYATEEVKN
LLASIKEDVK QLFIISELTV EDAQNADTSA PEYTSGRIVV QKAEGELCER SRIISKDVGA
NPKYPTLSLK NAEIVEKYYQ N
//
