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. Author manuscript; available in PMC: 2022 Jan 14.
Published in final edited form as: J Phys Chem B. 2021 Jan 4;125(1):467–476. doi: 10.1021/acs.jpcb.0c11057

Figure 1: Poly-SUMO and poly-SIM assemble into zipper-like filaments.

Figure 1:

(a) SUMO/SIM droplets are composed of decavalent scaffolds and clients of valence 1, 2, and 3. (b) Intermolecular bonding is most efficient when the scaffolds align to form zipper-like structures. The zippers have bonding defects including sticky ends and gaps. Overlap defects are also possible but neglected in our calculation. (c) Zipper defects provide binding sites to recruit clients or (d) assemble the zippers into a 3D network. The short linker connecting modules favors consecutive bonds with the same molecule rather than the formation of a random network.