1cvj is a 16 chain structure with sequence from Homo sapiens. The October 2008 RCSB PDB Molecule of the Month feature on Poly(A) Polymerase by David Goodsell is 10.2210/rcsb_pdb/mom_2008_10. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The cocrystal structure of human poly(A)-binding protein (PABP) has been determined at 2.6 A resolution. PABP recognizes the 3' mRNA poly(A) tail and plays critical roles in eukaryotic translation initiation and mRNA stabilization/degradation. The minimal PABP used in this study consists of the N-terminal two RRM-type RNA-binding domains connected by a short linker (RRM1/2). These two RRMs form a continuous RNA-binding trough, lined by an antiparallel beta sheet backed by four alpha helices. The polyadenylate RNA adopts an extended conformation running the length of the molecular trough. Adenine recognition is primarily mediated by contacts with conserved residues found in the RNP motifs of the two RRMs. The convex dorsum of RRM1/2 displays a phylogenetically conserved hydrophobic/acidic portion, which may interact with translation initiation factors and regulatory proteins.
Recognition of polyadenylate RNA by the poly(A)-binding protein.,Deo RC, Bonanno JB, Sonenberg N, Burley SK Cell. 1999 Sep 17;98(6):835-45. PMID:10499800[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
↑ Deo RC, Bonanno JB, Sonenberg N, Burley SK. Recognition of polyadenylate RNA by the poly(A)-binding protein. Cell. 1999 Sep 17;98(6):835-45. PMID:10499800
