8csw

Local refinement of protein 4.2 in Class 2 of erythrocyte ankyrin-1 complex

spinqualitylabelsall models 8csw, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8csw is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Disease [EPB42_HUMAN] Hereditary spherocytosis. The disease is caused by variants affecting the gene represented in this entry. Function [EPB42_HUMAN] Probably plays an important role in the regulation of erythrocyte shape and mechanical properties. Publication Abstract from PubMed The stability and shape of the erythrocyte membrane is provided by the ankyrin-1 complex, but how it tethers the spectrin-actin cytoskeleton to the lipid bilayer and the nature of its association with the band 3 anion exchanger and the Rhesus glycoproteins remains unknown. Here we present structures of ankyrin-1 complexes purified from human erythrocytes. We reveal the architecture of a core complex of ankyrin-1, the Rhesus proteins RhAG and RhCE, the band 3 anion exchanger, protein 4.2, glycophorin A and glycophorin B. The distinct T-shaped conformation of membrane-bound ankyrin-1 facilitates recognition of RhCE and, unexpectedly, the water channel aquaporin-1. Together, our results uncover the molecular details of ankyrin-1 association with the erythrocyte membrane, and illustrate the mechanism of ankyrin-mediated membrane protein clustering. Architecture of the human erythrocyte ankyrin-1 complex.,Vallese F, Kim K, Yen LY, Johnston JD, Noble AJ, Cali T, Clarke OB Nat Struct Mol Biol. 2022 Jul;29(7):706-718. doi: 10.1038/s41594-022-00792-w., Epub 2022 Jul 14. PMID:35835865 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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