Higher-order assemblies in immune signaling: supramolecular complexes and phase separation
Received date: 03 Dec 2020
Accepted date: 01 Mar 2021
Published date: 15 Sep 2021
Copyright
Signaling pathways in innate and adaptive immunity play vital roles in pathogen recognition and the functions of immune cells. Higher-order assemblies have recently emerged as a central principle that governs immune signaling and, by extension, cellular communication in general. There are mainly two types of higherorder assemblies: 1) ordered, solid-like large supramolecular complexes formed by stable and rigid protein-protein interactions, and 2) liquid-like phaseseparated condensates formed by weaker and more dynamic intermolecular interactions. This review covers key examples of both types of higher-order assemblies in major immune pathways. By placing emphasis on the molecular structures of the examples provided, we discuss how their structural organization enables elegant mechanisms of signaling regulation.
Key words: higher-order assembly; phase separation; signalosome; cGAS; inflammasome; TCR; BCR; TLR; RLR; TNFR; death domain; immune signaling
Shiyu Xia , Zhenhang Chen , Chen Shen , Tian-Min Fu . Higher-order assemblies in immune signaling: supramolecular complexes and phase separation[J]. Protein & Cell, 2021 , 12(9) : 680 -694 . DOI: 10.1007/s13238-021-00839-6
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