A washing machine cover is a protective accessory that shields your appliance from dust, dirt, moisture, and scratches. Made from waterproof or durable materials, it helps maintain the machine's cleanliness, prolongs its lifespan, and ensures smooth operation.
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A mattress cover protects the mattress from spills, stains, dust, and allergens. It enhances comfort, extends mattress life, and provides easy cleaning, ensuring a hygienic and cozy sleeping environment.
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The influenza virus hemagglutinin (HA) fusion protein has long been viewed as a "spring-loaded" fusion machine whereby activation at low pH initiates a rapid and irreversible cascade of conformational changes that drives the membrane fusion reaction. This mechanism has shaped our understanding of how type 1 viral fusion proteins function as a whole. Experimental limitations have hindered efforts to expand our mechanistic and structural understanding of viral membrane fusion. Here, we used pulse-labeling hydrogen/deuterium exchange mass spe