SYI_MACCJ
ID SYI_MACCJ Reviewed; 914 AA.
AC B9EB60;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 24-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 88.
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=MCCL_0764;
OS Macrococcus caseolyticus (strain JCSC5402).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae; Macrococcus.
OX NCBI_TaxID=458233;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCSC5402;
RX PubMed=19074389; DOI=10.1128/jb.01058-08;
RA Baba T., Kuwahara-Arai K., Uchiyama I., Takeuchi F., Ito T., Hiramatsu K.;
RT "Complete genome sequence of Macrococcus caseolyticus strain JCSCS5402,
RT reflecting the ancestral genome of the human-pathogenic staphylococci.";
RL J. Bacteriol. 191:1180-1190(2009).
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; AP009484; BAH17471.1; -; Genomic_DNA.
DR RefSeq; WP_012656672.1; NC_011999.1.
DR AlphaFoldDB; B9EB60; -.
DR SMR; B9EB60; -.
DR STRING; 458233.MCCL_0764; -.
DR EnsemblBacteria; BAH17471; BAH17471; MCCL_0764.
DR KEGG; mcl:MCCL_0764; -.
DR eggNOG; COG0060; Bacteria.
DR HOGENOM; CLU_001493_7_1_9; -.
DR OMA; HLGTAWN; -.
DR OrthoDB; 32262at2; -.
DR Proteomes; UP000001383; 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 Gene3D; 3.40.50.620; -; 2.
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; Reference proteome; Zinc.
FT CHAIN 1..914
FT /note="Isoleucine--tRNA ligase"
FT /id="PRO_1000189180"
FT MOTIF 57..67
FT /note="'HIGH' region"
FT MOTIF 595..599
FT /note="'KMSKS' region"
FT BINDING 554
FT /ligand="L-isoleucyl-5'-AMP"
FT /ligand_id="ChEBI:CHEBI:178002"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 598
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 883
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 886
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 904
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
FT BINDING 907
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02002"
SQ SEQUENCE 914 AA; 104435 MW; 614783A59E2A6DAB CRC64;
MDYKDTLLMP KTDFPMRGGL PNKEPQIQAQ WDEKKLYEKI LKKNEGRTPY ILHDGPPYAN
GQIHMGHALN KIIKDMIMRY KAMNGYYAPY VPGWDTHGLP IETALTKKGV DRKSMSEAEF
RELCRAYALE QIELQKADFK RLGVNGDWEN PYITLQEKFE AEQIRLFGDM AAKGYIYKGK
KPVYWSPSSE SSLAEAEIEY QDKVSPSIYV AFDVLDGKGL VDDDVKFVIW TTTPWTLPAN
VAIALNKDLD YVQVRVNDTS YIVAQALLDN VCDAVGWDKE GVQIEKTFKG ADLEFVKARH
PFIDRESLII LGDHVTTDAG TGCVHTAPGH GEDDFIVGQK YELDVISPVD GKGVYTSEAG
EFEGMYYDKA NKVITEKLEA SGHLLKLDFF KHSYPHDWRT KKPVIFRATP QWFASINKVR
QDILNAIEET EFKVEWGKTR IYNMIRDRGD WVISRQRVWG VPLPVFYAEN GDIIMDKAVI
EHVATLVEKH GTNVWYEREA TDLLPEGYTH PGSPNGVFTK EKDIMDVWFD SGSSHRGVLE
ARPELSFPAD LYFEGSDQYR GWFNSSITTA VATRGKSPYK KLLSHGFVMD GQGRKMSKSL
GNTVLPEKVV KQMGADIIRL WVMSVDYLAD VRISDDILKQ VSEVYRKIRN TFKFLLGNVN
DFNPATDAVP YAELVEIDQF MLNKLYTFVN NAHKHYDNND YLFMYQELQN FINVELSNFY
LDYGKDILYI EAQDSHVRRS MQTVVYEVLT SLTKVLAPII PHTADEIWSH TPHVTEESVH
LADMPEVQSV DTALIGKWNH FLEIRDDVLK AIEETRNDKV IGKSLEAAVY IQAKNEEDQA
LLKSFDNLHQ LFITSYAEVV DEPQGTDYNL SNVLVKHAEG EKCERCWNYS TVLTEESHAH
PHVCPRCLSV LESK
