ID A0A1E8Q0M1_9MYCO Unreviewed; 1047 AA.
AC A0A1E8Q0M1;
DT 15-FEB-2017, integrated into UniProtKB/TrEMBL.
DT 15-FEB-2017, sequence version 1.
DT 24-JAN-2024, entry version 32.
DE RecName: Full=Isoleucine--tRNA ligase {ECO:0000256|HAMAP-Rule:MF_02003};
DE EC=6.1.1.5 {ECO:0000256|HAMAP-Rule:MF_02003};
DE AltName: Full=Isoleucyl-tRNA synthetase {ECO:0000256|HAMAP-Rule:MF_02003};
DE Short=IleRS {ECO:0000256|HAMAP-Rule:MF_02003};
GN Name=ileS {ECO:0000256|HAMAP-Rule:MF_02003};
GN ORFNames=BEL07_19100 {ECO:0000313|EMBL:OFJ52108.1};
OS Mycobacterium grossiae.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycobacterium.
OX NCBI_TaxID=1552759 {ECO:0000313|EMBL:OFJ52108.1, ECO:0000313|Proteomes:UP000178953};
RN [1] {ECO:0000313|EMBL:OFJ52108.1, ECO:0000313|Proteomes:UP000178953}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SCH {ECO:0000313|EMBL:OFJ52108.1,
RC ECO:0000313|Proteomes:UP000178953};
RA Greninger A.L., Qin X., Jerome K., Vora S., Quinn K.;
RT "genome sequence of Mycobacterium sp. 739 SCH.";
RL Submitted (SEP-2016) 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:0000256|ARBA:ARBA00025217, ECO:0000256|HAMAP-Rule:MF_02003}.
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_02003};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02003};
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_02003}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_02003}.
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_02003}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC IleS type 2 subfamily. {ECO:0000256|ARBA:ARBA00007078,
CC ECO:0000256|HAMAP-Rule:MF_02003}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OFJ52108.1}.
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DR EMBL; MCHX01000047; OFJ52108.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1E8Q0M1; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000178953; Unassembled WGS sequence.
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; cd07961; Anticodon_Ia_Ile_ABEc; 1.
DR CDD; cd00818; IleRS_core; 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_02003; Ile_tRNA_synth_type2; 1.
DR InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR InterPro; IPR002300; aa-tRNA-synth_Ia.
DR InterPro; IPR033709; Anticodon_Ile_ABEc.
DR InterPro; IPR002301; Ile-tRNA-ligase.
DR InterPro; IPR023586; Ile-tRNA-ligase_type2.
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; PTHR42780:SF1; ISOLEUCINE--TRNA LIGASE, CYTOPLASMIC; 1.
DR PANTHER; PTHR42780; SOLEUCYL-TRNA SYNTHETASE; 1.
DR Pfam; PF08264; Anticodon_1; 1.
DR Pfam; PF19302; DUF5915; 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_02003};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_02003};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_02003};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_02003};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_02003};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_02003};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_02003}; Reference proteome {ECO:0000313|Proteomes:UP000178953};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02003}.
FT DOMAIN 21..659
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 707..846
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT MOTIF 51..61
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT MOTIF 625..629
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 628
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1047 AA; 117422 MW; B0502AA727931203 CRC64;
MSAYPKPASG SPNFPDLELD VLDYWNGDGT FRASIDRRDG APEYVFYDGP PFANGLPHYG
HLLTGYVKDI VPRYKTMRGF KVERRFGWDT HGLPAELEAQ RQLGISTKAQ IEDMGIEKFN
EACRSSVLRY TDEWRRYVTR QARWVDFDHD YKTLDLDFME SVLWAFKQLW DKGLAYEGYR
VLPYCWNDET PLSSHELRMD DDVYQSRQDP ALTVGLRVTD GPLDGAYLLI WTTTPWTLPS
NQAVAVNPDV TYAVVDHEGR RFVLAQARLA HYARELGEEP TVVGTYTGAE LVGTRYLPPF
PYFADTDGAR NAWQVLPADF VSTDDGTGLV HMSPAYGEDD KATADAADIV AVTPVDARGR
FDDTVPDYAG QQVFEANPHI IRDLKNGTGA AAANGAVLLR HETYEHSYPH CWRCRNPLIY
RAVSSWFVEV TAFRDRMVEL NQQITWYPEH VKDGQFGKWL QNARDWSISR NRYWGSPIPV
WKSDDPRYPR IDVYGSLDEL ERDFGVRPDN LHRPFIDELT RPNPDDPTGQ STMRRIEDVF
DVWFDSGSMP YAQVHYPFEN REWFLGGNEA GREDAHFPGD FIVEYIGQTR GWFYTLHVLA
TALFDRPAFE TCVSHGIVLG NDGAKMSKSL RNYPDVNEVF DRDGSDAMRW FLMASPILRG
GNLVVTEQGI RDGVRQVLLP FWNAYSFLSL YASEKGTWRT DSPHVLDRYV LAKLAVLRDE
LTASLDACDV SGACDELRQF TEALTNWYVR RSRSRFWEED RDAVDTLHTV LEVMGRLAAP
LLPLISEVIW RGVTGGRSVH LTDWPEAGEL PADPELVAAM DQVREVCSAA SSLRKAKKLR
VRLPLPKLTV AVEQPERLRP FVDLIADELN VKAVDLTDDI AAYGRFELTV NARAAGPRIG
KDVQAAIKAV KAGEGVVNAD GTLSAGPATL LPTEFSAKLV SAEPDSTAAL PDGAGLVVLD
GTVTEELEAE GWAKDRIREL QDLRKSSGLD VSDRIRVVIS VPPERRDWAS THAELIAGEI
LATSFEFGEP DGGAEIGDGV TVAIARA
//
