3b7g

Human DEAD-box RNA helicase DDX20, Conserved domain I (DEAD) in complex with AMPPNP (Adenosine-(Beta,gamma)-imidotriphosphate)

spinqualitylabelsall models 3b7g, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3b7g is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: ANP Related: 2oxc Gene: DDX20, DP103, GEMIN3 (Homo sapiens) Resources: FirstGlance, OCA, RCSB, PDBsum Function [DDX20_HUMAN] The SMN complex plays an essential role in spliceosomal snRNP assembly in the cytoplasm and is required for pre-mRNA splicing in the nucleus. It may also play a role in the metabolism of snoRNPs. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed DEAD-box RNA helicases play various, often critical, roles in all processes where RNAs are involved. Members of this family of proteins are linked to human disease, including cancer and viral infections. DEAD-box proteins contain two conserved domains that both contribute to RNA and ATP binding. Despite recent advances the molecular details of how these enzymes convert chemical energy into RNA remodeling is unknown. We present crystal structures of the isolated DEAD-domains of human DDX2A/eIF4A1, DDX2B/eIF4A2, DDX5, DDX10/DBP4, DDX18/myc-regulated DEAD-box protein, DDX20, DDX47, DDX52/ROK1, and DDX53/CAGE, and of the helicase domains of DDX25 and DDX41. Together with prior knowledge this enables a family-wide comparative structural analysis. We propose a general mechanism for opening of the RNA binding site. This analysis also provides insights into the diversity of DExD/H- proteins, with implications for understanding the functions of individual family members. Comparative structural analysis of human DEAD-box RNA helicases.,Schutz P, Karlberg T, van den Berg S, Collins R, Lehtio L, Hogbom M, Holmberg-Schiavone L, Tempel W, Park HW, Hammarstrom M, Moche M, Thorsell AG, Schuler H PLoS One. 2010 Sep 30;5(9). pii: e12791. PMID:20941364 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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