6tau

Structure of the two-fold capsomer of the dArc2 capsidStructure of the two-fold capsomer of the dArc2 capsid

6tau, resolution 3.70Å Show:Asymmetric Unit Biological Assembly Structural highlights 6tau is a 6 chain structure with sequence from Drosophila melanogaster. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.7Å Experimental data: Check Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ARC2_DROME Self-assembles into virion-like capsids that encapsulate RNAs and mediate intercellular RNA transfer. Arc2 protein is released from cells in extracellular vesicles that mediate the transfer of mRNA into neighboring cells.[UniProtKB:Q7K1U0] Publication Abstract from PubMed Arc, a neuronal gene that is critical for synaptic plasticity, originated through the domestication of retrotransposon Gag genes and mediates intercellular messenger RNA transfer. We report high-resolution structures of retrovirus-like capsids formed by Drosophila dArc1 and dArc2 that have surface spikes and putative internal RNA-binding domains. These data demonstrate that virus-like capsid-forming properties of Arc are evolutionarily conserved and provide a structural basis for understanding their function in intercellular communication. Structures of virus-like capsids formed by the Drosophila neuronal Arc proteins.,Erlendsson S, Morado DR, Cullen HB, Feschotte C, Shepherd JD, Briggs JAG Nat Neurosci. 2020 Feb;23(2):172-175. doi: 10.1038/s41593-019-0569-y. Epub 2020, Jan 6. PMID:31907439 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.