5lxy

Structure of the minimal RBM7 - ZCCHC8 Complex

spinqualitylabelsall models 5lxy, resolution 2.85Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 5lxy is a 14 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.85Å Ligands: BR Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RBM7_HUMAN Possible involved in germ cell RNA processing and meiosis. Publication Abstract from PubMed The eukaryotic RNA exosome participates extensively in RNA processing and degradation. In human cells, three accessory factors (RBM7, ZCCHC8 and hMTR4) interact to form the nuclear exosome targeting (NEXT) complex, which directs a subset of non-coding RNAs for exosomal degradation. Here we elucidate how RBM7 is incorporated in the NEXT complex. We identify a proline-rich segment of ZCCHC8 as the interaction site for the RNA-recognition motif (RRM) of RBM7 and present the crystal structure of the corresponding complex at 2.0 A resolution. On the basis of the structure, we identify a proline-rich segment within the splicing factor SAP145 with strong similarity to ZCCHC8. We show that this segment of SAP145 not only binds the RRM region of another splicing factor SAP49 but also the RRM of RBM7. These dual interactions of RBM7 with the exosome and the spliceosome suggest a model whereby NEXT might recruit the exosome to degrade intronic RNAs. Structure of the RBM7-ZCCHC8 core of the NEXT complex reveals connections to splicing factors.,Falk S, Finogenova K, Melko M, Benda C, Lykke-Andersen S, Jensen TH, Conti E Nat Commun. 2016 Dec 1;7:13573. doi: 10.1038/ncomms13573. PMID:27905398 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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