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Q6LX78

- SYI_METMP

UniProt

Q6LX78 - SYI_METMP

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Protein
Isoleucine--tRNA ligase
Gene
ileS, MMP1474
Organism
Methanococcus maripaludis (strain S2 / LL)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile) By similarity.UniRule annotation

Catalytic activityi

ATP + L-isoleucine + tRNA(Ile) = AMP + diphosphate + L-isoleucyl-tRNA(Ile).UniRule annotation

Cofactori

Zinc By similarity.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei601 – 6011ATP By similarity

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-HAMAP
  2. aminoacyl-tRNA editing activity Source: InterPro
  3. isoleucine-tRNA ligase activity Source: UniProtKB-HAMAP
  4. zinc ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. isoleucyl-tRNA aminoacylation Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Aminoacyl-tRNA synthetase, Ligase

Keywords - Biological processi

Protein biosynthesis

Keywords - Ligandi

ATP-binding, Metal-binding, Nucleotide-binding, Zinc

Enzyme and pathway databases

BioCyciMMAR267377:GJ77-1512-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Isoleucine--tRNA ligase (EC:6.1.1.5)
Alternative name(s):
Isoleucyl-tRNA synthetase
Short name:
IleRS
Gene namesi
Name:ileS
Ordered Locus Names:MMP1474
OrganismiMethanococcus maripaludis (strain S2 / LL)
Taxonomic identifieri267377 [NCBI]
Taxonomic lineageiArchaeaEuryarchaeotaMethanococciMethanococcalesMethanococcaceaeMethanococcus
ProteomesiUP000000590: Chromosome

Subcellular locationi

Cytoplasm By similarity UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 10341034Isoleucine--tRNA ligaseUniRule annotation
PRO_0000098581Add
BLAST

Interactioni

Subunit structurei

Monomer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi267377.MMP1474.

Structurei

3D structure databases

ProteinModelPortaliQ6LX78.

Family & Domainsi

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi46 – 5611"HIGH" regionUniRule annotation
Add
BLAST
Motifi598 – 6025"KMSKS" regionUniRule annotation

Domaini

IleRS has two distinct active sites: one for aminoacylation and one for editing. The misactivated valine is translocated from the active site to the editing site, which sterically excludes the correctly activated isoleucine. The single editing site contains two valyl binding pockets, one specific for each substrate (Val-AMP or Val-tRNA(Ile)) By similarity.UniRule annotation

Sequence similaritiesi

Phylogenomic databases

eggNOGiCOG0060.
HOGENOMiHOG000246403.
KOiK01870.
OMAiKPVHWCL.

Family and domain databases

Gene3Di1.10.730.10. 1 hit.
3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPiMF_02003. Ile_tRNA_synth_type2.
InterProiIPR001412. aa-tRNA-synth_I_CS.
IPR002300. aa-tRNA-synth_Ia.
IPR002301. Ile-tRNA-ligase.
IPR023585. Ile-tRNA-ligase_type1.
IPR023586. Ile-tRNA-ligase_type2.
IPR014729. Rossmann-like_a/b/a_fold.
IPR009080. tRNAsynth_1a_anticodon-bd.
IPR013155. V/L/I-tRNA-synth_anticodon-bd.
IPR009008. Val/Leu/Ile-tRNA-synth_edit.
[Graphical view]
PANTHERiPTHR11946:SF9. PTHR11946:SF9. 1 hit.
PfamiPF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
[Graphical view]
PRINTSiPR00984. TRNASYNTHILE.
SUPFAMiSSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsiTIGR00392. ileS. 1 hit.
PROSITEiPS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q6LX78-1 [UniParc]FASTAAdd to Basket

« Hide

MKQVKSVNFR ELDKKVKEYW KKENTYKKVK ALNEHGPEYY FVDGPPYCSG     50
AIHLGTAWNK IIKDTVLRFK RIQGYNVLDK AGWDMHGLPI EVKVENEFNI 100
GSKKDIETKI GTQEFINKCK EFALNHLGHM QGQFENLGVW LDFENAYMPI 150
KRDYMEMGWW TLKKAHEKEL LTKDLRSGYW CPRCETSLAE HEVRGEYKEV 200
LDPSVYVKFK LEKSDEYITI WTTTPWTLPS NMLVCVNPEF DYAYVNVEFE 250
NGTAETWIIA EKLVNDVMKK AEKNNDISKF SISKVVKGDS LIGLKYIHPL 300
LEENEKQQEF AKIENVHTIV PGDHVTLEGG TGLVHTAPGF GEDDFNIGKE 350
HNIPVYAPID DNGKYTDSIW KGTFVKDMDE SVIETLISKN LLVNSGKVKH 400
TYPHCWRCKT PLLFRATEQW FLSISKIKDS IIEQGKTVDW VPDWVKTRYV 450
NGVSFVGDWN ISRQRYWGIP LPIWICEECG NYEVIGSVDE LKERANEKDV 500
DLSDIHKPAV DKITLTCSCG GKMKRTPDVL DVWYDSGLAP YASIGSKKLK 550
KAQFITEGND QVTKWFYSQH ALSAVVFDDT SYEKCMMHGF TLDETGEKMS 600
KSLGNIVSPD DVTEQYGADV LRFYLLSANK AWEDLRFSYS EMDETRSMLN 650
TLWNSYAFSA NYMVLDDFVP NNEYFKHVKD EDAWILSRIN TVAKEAVEAL 700
EKPHLHVYTW ALRDFILNDF SRWYIKLIRD RTWMEKNDVQ KLSAYQTLYY 750
VIMKLISIMA PVTPHLSEEI YQNLKTEDMP ESIFMNKLTI ESEFINETLE 800
KDTEIIREIV DSILKGRDKA KYTLRYPITK ITLPENIAET VEKYGYIIKE 850
QGNVKEIELK EFEGNITVKP NFKELGKIFR SDVPKVVAAI NSVAPNELKE 900
KLKSGNFEVS EYEIKPEYVE FRVEIPENIV GVEFSKGNVY INIEMNDEVI 950
KEGLVREVVR RIQSMRKDMD LDINEKINVK LEGIDFSSDY LSHIANEVRG 1000
NFVESLKSDY NQKWTIKTPN EETYDISIDI EKNK 1034
Length:1,034
Mass (Da):119,910
Last modified:July 5, 2004 - v1
Checksum:iA9C573A4C0E3ECB8
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BX950229 Genomic DNA. Translation: CAF31030.1.
RefSeqiNP_988594.1. NC_005791.1.
WP_011171418.1. NC_005791.1.

Genome annotation databases

EnsemblBacteriaiCAF31030; CAF31030; MMP1474.
GeneIDi2761573.
KEGGimmp:MMP1474.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BX950229 Genomic DNA. Translation: CAF31030.1 .
RefSeqi NP_988594.1. NC_005791.1.
WP_011171418.1. NC_005791.1.

3D structure databases

ProteinModelPortali Q6LX78.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 267377.MMP1474.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai CAF31030 ; CAF31030 ; MMP1474 .
GeneIDi 2761573.
KEGGi mmp:MMP1474.

Phylogenomic databases

eggNOGi COG0060.
HOGENOMi HOG000246403.
KOi K01870.
OMAi KPVHWCL.

Enzyme and pathway databases

BioCyci MMAR267377:GJ77-1512-MONOMER.

Family and domain databases

Gene3Di 1.10.730.10. 1 hit.
3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPi MF_02003. Ile_tRNA_synth_type2.
InterProi IPR001412. aa-tRNA-synth_I_CS.
IPR002300. aa-tRNA-synth_Ia.
IPR002301. Ile-tRNA-ligase.
IPR023585. Ile-tRNA-ligase_type1.
IPR023586. Ile-tRNA-ligase_type2.
IPR014729. Rossmann-like_a/b/a_fold.
IPR009080. tRNAsynth_1a_anticodon-bd.
IPR013155. V/L/I-tRNA-synth_anticodon-bd.
IPR009008. Val/Leu/Ile-tRNA-synth_edit.
[Graphical view ]
PANTHERi PTHR11946:SF9. PTHR11946:SF9. 1 hit.
Pfami PF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
[Graphical view ]
PRINTSi PR00984. TRNASYNTHILE.
SUPFAMi SSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsi TIGR00392. ileS. 1 hit.
PROSITEi PS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: S2 / LL.

Entry informationi

Entry nameiSYI_METMP
AccessioniPrimary (citable) accession number: Q6LX78
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 20, 2005
Last sequence update: July 5, 2004
Last modified: September 3, 2014
This is version 68 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. Aminoacyl-tRNA synthetases
    List of aminoacyl-tRNA synthetase entries
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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