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Intracellular protein-protein interactions required for SARS-CoV-2 replication
- Molecular classification
- Protein-protein interaction network, Viral-host interaction, Multicomponent Target
01
Overview
SARS-CoV-2 replication within host cells is critically dependent on a complex network of intracellular protein-protein interactions (PPIs) involving both viral and host proteins. These interactions orchestrate every stage of the viral life cycle, including entry, genome replication, transcription, translation, assembly, and egress. Disrupting these PPIs is a promising strategy for antiviral drug development. Key viral proteins involved include Nsps (especially nsp3/nsp4/nsp6/nsp9/nsp16) and structural protein N. Key host components include autophagy-related proteins (ATG5/LC3), Lamp2a, and Rab GTPases. These interactions are essential for membrane remodeling, DMV formation, translation control, and trafficking. Disruption of these interactions impairs essential steps in the virus life cycle.
02
Mechanism of action
Disruption/inhibition of viral-host protein interactions
03
Biological functions
Viral replicationMembrane remodelingTranslation controlTraffickingImmune response modulation
04
Disease associations
InfectionCOVID-19
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Safety considerations
Off-target effects due to targeting host proteinsPotential for drug resistance developmentComplexity of targeting multiple PPIs simultaneously
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