8ga9

C4HR1_4r: Extendable repeat protein tetramer

spinqualitylabelsall models 8ga9, resolution 3.71Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8ga9 is a 4 chain structure with sequence from Synthetic construct. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.71Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Molecular systems with coincident cyclic and superhelical symmetry axes have considerable advantages for materials design as they can be readily lengthened or shortened by changing the length of the constituent monomers. Among proteins, alpha-helical coiled coils have such symmetric, extendable architectures, but are limited by the relatively fixed geometry and flexibility of the helical protomers. Here we describe a systematic approach to generating modular and rigid repeat protein oligomers with coincident C(2) to C(8) and superhelical symmetry axes that can be readily extended by repeat propagation. From these building blocks, we demonstrate that a wide range of unbounded fibres can be systematically designed by introducing hydrophilic surface patches that force staggering of the monomers; the geometry of such fibres can be precisely tuned by varying the number of repeat units in the monomer and the placement of the hydrophilic patches. Precisely patterned nanofibres made from extendable protein multiplexes.,Bethel NP, Borst AJ, Parmeggiani F, Bick MJ, Brunette TJ, Nguyen H, Kang A, Bera AK, Carter L, Miranda MC, Kibler RD, Lamb M, Li X, Sankaran B, Baker D Nat Chem. 2023 Dec;15(12):1664-1671. doi: 10.1038/s41557-023-01314-x. Epub 2023 , Sep 4. PMID:37667012 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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