Improved refinement of the Mtr4 apo crystal structureImproved refinement of the Mtr4 apo crystal structure

Structural highlights

4qu4 is a 1 chain structure with sequence from Saccharomyces cerevisiae. This structure supersedes the now removed PDB entry 3l9o. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3.392Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MTR4_YEAST ATP-dependent RNA helicase required for the 3'-end formation of 5.8S RNA. Cofactor for the exosome complex that unwinds secondary structure in pre-rRNA. Required for nucleocytoplasmic transport of mRNA. May serve as a chaperone which translocates or normalizes the structure of mRNAs in preparation for export. Component of the TRAMP complex which has a poly(A) RNA polymerase activity and is involved in a post-transcriptional quality control mechanism limiting inappropriate expression of genetic information. Polyadenylation is required for the degradative activity of the exosome on several of its nuclear RNA substrates.[1]

See Also

References

  1. Vanacova S, Wolf J, Martin G, Blank D, Dettwiler S, Friedlein A, Langen H, Keith G, Keller W. A new yeast poly(A) polymerase complex involved in RNA quality control. PLoS Biol. 2005 Jun;3(6):e189. Epub 2005 Apr 19. PMID:15828860 doi:http://dx.doi.org/05-PLBI-RA-0095R2

4qu4, resolution 3.39Å

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