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B6YXU4 (ENDA_THEON) Reviewed, UniProtKB/Swiss-Prot

Last modified June 11, 2014. Version 37. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
tRNA-splicing endonuclease

EC=4.6.1.16
Alternative name(s):
tRNA-intron endonuclease
Gene names
Name:endA
Ordered Locus Names:TON_1417
OrganismThermococcus onnurineus (strain NA1) [Complete proteome] [HAMAP]
Taxonomic identifier523850 [NCBI]
Taxonomic lineageArchaeaEuryarchaeotaThermococciThermococcalesThermococcaceaeThermococcus

Protein attributes

Sequence length171 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Endonuclease that removes tRNA introns. Cleaves pre-tRNA at the 5'- and 3'-splice sites to release the intron. The products are an intron and two tRNA half-molecules bearing 2',3' cyclic phosphate and 5'-OH termini. Recognizes a pseudosymmetric substrate in which 2 bulged loops of 3 bases are separated by a stem of 4 bp By similarity. HAMAP-Rule MF_01833

Catalytic activity

PretRNA = a 3'-half-tRNA molecule with a 5'-OH end + a 5'-half-tRNA molecule with a 2',3'-cyclic phosphate end + an intron with a 2',3'-cyclic phosphate and a 5'-hydroxyl terminus. HAMAP-Rule MF_01833

Subunit structure

Homotetramer; although the tetramer contains four active sites, only two participate in the cleavage. Therefore, it should be considered as a dimer of dimers By similarity.

Sequence similarities

Belongs to the tRNA-intron endonuclease family. Archaeal short subfamily.

Ontologies

Keywords
   Biological processtRNA processing
   Molecular functionLyase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processtRNA splicing, via endonucleolytic cleavage and ligation

Inferred from electronic annotation. Source: UniProtKB-HAMAP

   Molecular_functionlyase activity

Inferred from electronic annotation. Source: UniProtKB-KW

nucleic acid binding

Inferred from electronic annotation. Source: InterPro

tRNA-intron endonuclease activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 171171tRNA-splicing endonuclease HAMAP-Rule MF_01833
PRO_1000188343

Sites

Active site1101 By similarity
Active site1171 By similarity
Active site1481 By similarity

Sequences

Sequence LengthMass (Da)Tools
B6YXU4 [UniParc].

Last modified January 20, 2009. Version 1.
Checksum: BEFA08021C7A99D9

FASTA17120,286
        10         20         30         40         50         60 
MKEPIEFKLS GDRAFSEREK AINQLYNRRY FGEVVNGKLF LSLIEAAYLM ERGKIKVLDG 

        70         80         90        100        110        120 
GKELSFEELF ELGRKKDDQF DIKYLVYKDL RDRGYIVKSA LKFGSHFRVY RRGMDEHSQW 

       130        140        150        160        170 
LIWVVPENLR FSANDITARV RVAHGVRKNM VMAVVDEDND VVYYKIEWVK F 

« Hide

References

[1]"The complete genome sequence of Thermococcus onnurineus NA1 reveals a mixed heterotrophic and carboxydotrophic metabolism."
Lee H.S., Kang S.G., Bae S.S., Lim J.K., Cho Y., Kim Y.J., Jeon J.H., Cha S.-S., Kwon K.K., Kim H.-T., Park C.-J., Lee H.-W., Kim S.I., Chun J., Colwell R.R., Kim S.-J., Lee J.-H.
J. Bacteriol. 190:7491-7499(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: NA1.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000855 Genomic DNA. Translation: ACJ16907.1.
RefSeqYP_002307804.1. NC_011529.1.

3D structure databases

ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING523850.TON_1417.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaACJ16907; ACJ16907; TON_1417.
GeneID7018451.
KEGGton:TON_1417.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1676.
HOGENOMHOG000107823.
KOK01170.
OMAALKFGSH.

Enzyme and pathway databases

BioCycTONN523850:GC7X-1461-MONOMER.

Family and domain databases

Gene3D3.40.1350.10. 1 hit.
HAMAPMF_01833. EndA_short.
InterProIPR011856. tRNA_endonuc-like_dom.
IPR006677. tRNA_intron_Endonuc_cat-like.
IPR006678. tRNA_intron_Endonuc_N.
IPR006676. tRNA_splic.
IPR016442. tRNA_splic_arch_short.
[Graphical view]
PfamPF01974. tRNA_int_endo. 1 hit.
PF02778. tRNA_int_endo_N. 1 hit.
[Graphical view]
PIRSFPIRSF005285. tRNA_splic_archaea. 1 hit.
SUPFAMSSF53032. SSF53032. 1 hit.
SSF55267. SSF55267. 1 hit.
TIGRFAMsTIGR00324. endA. 1 hit.
ProtoNetSearch...

Entry information

Entry nameENDA_THEON
AccessionPrimary (citable) accession number: B6YXU4
Entry history
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: January 20, 2009
Last modified: June 11, 2014
This is version 37 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families