Protocol for visualizing conditional interaction between transmembrane and cytoplasmic proteins

Autor: Masanori Hatakeyama, Takuya Ooki
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: STAR Protocols, Vol 2, Iss 2, Pp 100430-(2021)
STAR Protocols
ISSN: 2666-1667
Popis: Summary This protocol visualizes dynamic interaction between a transmembrane protein and an intracellular protein induced by clusterization/oligomerization of the transmembrane protein. Association-dissociation of the intracellular region of the transmembrane protein with cytoplasmic protein(s) is detected by proximity ligation assay. Since a transmembrane protein often resists extraction, biochemical analysis of its dynamic interaction with cytoplasmic effectors is cumbersome. This protocol quantitatively visualizes protein-protein interaction occurring in the membrane periphery, providing a powerful tool to elucidate signal transduction across the membrane. For complete details on the use and execution of this protocol, please refer to Ooki et al. (2019).
Graphical Abstract
Highlights • Antibody-mediated cross-linking induces functional clustering of membrane protein • PLA can visualize extracellular-signal-dependent intracellular protein interaction • This protocol is applicable for the analysis of dynamic protein network formation
This protocol visualizes dynamic interaction between a transmembrane protein and an intracellular protein induced by clusterization/oligomerization of the transmembrane protein. Association-dissociation of the intracellular region of the transmembrane protein with cytoplasmic protein(s) is detected by proximity ligation assay. Since a transmembrane protein often resists extraction, biochemical analysis of its dynamic interaction with cytoplasmic effectors is cumbersome. This protocol quantitatively visualizes protein-protein interaction occurring in the membrane periphery, providing a powerful tool to elucidate signal transduction across the membrane.
Databáze: OpenAIRE