ID A0A1A0TLL0_9MYCO Unreviewed; 1038 AA.
AC A0A1A0TLL0;
DT 05-OCT-2016, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2016, sequence version 1.
DT 24-JAN-2024, entry version 33.
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=A5757_11435 {ECO:0000313|EMBL:OBB59701.1};
OS Mycobacterium sp. 852013-51886_SCH5428379.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC Mycobacterium.
OX NCBI_TaxID=1834111 {ECO:0000313|EMBL:OBB59701.1, ECO:0000313|Proteomes:UP000091910};
RN [1] {ECO:0000313|Proteomes:UP000091910}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=852013-51886_SCH5428379 {ECO:0000313|Proteomes:UP000091910};
RA Sutton G., Brinkac L., Sanka R., Adams M., Lau E., Mehaffy C., Tameris M.,
RA Hatherill M., Hanekom W., Mahomed H., Mcshane H.;
RL Submitted (JUN-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:OBB59701.1}.
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DR EMBL; LZSU01000019; OBB59701.1; -; Genomic_DNA.
DR RefSeq; WP_066830987.1; NZ_LZSU01000019.1.
DR AlphaFoldDB; A0A1A0TLL0; -.
DR STRING; 1834111.A5757_11435; -.
DR OrthoDB; 9810365at2; -.
DR Proteomes; UP000091910; 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:UP000091910};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_02003}.
FT DOMAIN 21..650
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 698..837
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 616..620
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
FT BINDING 619
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02003"
SQ SEQUENCE 1038 AA; 116448 MW; FD2CCE9CAA441EC7 CRC64;
MTAYPKPASG APNFPALEAD VLDFWSADDT FRASIDRRAD APEYVFYDGP PFANGLPHYG
HLLTGYVKDI VPRYRTMRGY KVERRFGWDT HGLPAELEVQ RQLGITDKAQ IEAMGIEKFN
DACRESVLRY TDEWRSYVTR QARWVDFDND YKTLDLGFME SVVWAFKQLW DKGLAYEGVR
VLPYCWNDET PLSSHELRMD DDVYQSRQDP AITVGFRISD GRLSGSHLLV WTTTPWTLPS
NQAVAVNPDV AYVQVTVDGG KYVLAEARLS AYARELGEEP EVLATFTGAD LVGTRYTPPF
PYFADSENAF QVLRGDFVTT EDGTGIVHMA PAYGEDDKAT TDTVGIVPVT PVDSKGRFDV
TVPDYRGQHV FDANPQIIRD LKNRTGGAAA NGAVLIRHET YEHSYPHCWR CRNPLIYRAV
SSWFIKVTEF RDRMVELNQE ITWYPEHVKD GQFGKWLQGA RDWSISRNRY WGTPIPVWKS
DDPAYPRIDV YGSLDELERD FGVRPDNLHR PYIDGLTRPN PDDPTGRSTM RRIEDVLDVW
FDSGSMPYAQ VHYPFENQDW FSGAEPHFPG DFIVEYIGQT RGWFYTLHVL ATALFDRPAF
KTCVSHGIVL GNDGQKMSKS LRNYPDVTEV FDRDGSDAMR WFLMASPILR GGNLVVTEQG
IREGVRQVLL PLWNAYSFLT LYAPQKGTWR TDSTHVLDRY ILAKLAALRD DLTESLDTCD
ISGACDDLRQ FTEALTNWYV RRSRSRFWQE DRDAIDTLHT VLEVTSRLAA PLLPLITEVI
WRGVTGERSV HLTDWPAAGE LPADPALVAA MDQVRAVCST ASSLRKANKL RVRLPLSKLT
VAVHDPAQLE PFTDLIADEL NVKAVELTDD IATYGRFELT VNAKVAGPRL GRDVQAAIKA
VKAGEAVAND DGTLTAGPAV LQPGEFTSRL VAADPAETAA LPDGAGLVVL DSTVTEELEA
EGWAKDRIRE LQEMRKSTGL EVSDRISVVM SVPGPQEGWA RTHRDLIARE ILATSFEFGD
PTDGAEIGEG VRVALTKA
//
