HELICchelicase superfamily c-terminal domain
|SMART accession number:||SM00490|
|Interpro abstract (IPR001650):|
Helicases have been classified in 5 superfamilies (SF1-SF5). For the two largest groups, commonly referred to as SF1 and SF2, a total of seven characteristic motifs has been identified [(PUBMED:2546125)]. These two superfamilies encompass a large number of DNA and RNA helicases from archaea, eubacteria, eukaryotes and viruses.
This entry represents the C-terminal domain found in proteins belonging to the helicase superfamilies 1 and 2. Included in this group is the eukaryotic translation initiation factor 4A (eIF4A), a member of the DEA(D/H)-box RNA helicase family. The structure of the carboxyl-terminal domain of eIF4A has been determined; it has a parallel alpha-beta topology that superimposes, with minor variations, on the structures and conserved motifs of the equivalent domain in other, distantly related helicases [(PUBMED:11087862)].
|GO function:||helicase activity (GO:0004386), ATP binding (GO:0005524), nucleic acid binding (GO:0003676)|
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