Author: Bonnin, Ariane; Danneels, Adeline; Dubuisson, Jean; Goffard, Anne; Belouzard, Sandrine
Title: HCoV-229E spike protein fusion activation by trypsin-like serine proteases is mediated by proteolytic processing in the S2' region. Cord-id: jxw5pu33 Document date: 2018_1_1
ID: jxw5pu33
Snippet: Human coronavirus 229E (HCoV-229E) is responsible for common colds. Like other coronaviruses, HCoV-229E exploits cellular proteases to activate fusion mediated by the spike protein. We analysed the proteolytic processing of the HCoV-229E spike protein by trypsin-like serine proteases leading to activation of the fusion process. Unlike in other coronaviruses, HCoV-229E fusion activation appears to be a one-step process. Indeed, cleavage of the S1/S2 interface does not seem to be a prerequisite, a
Document: Human coronavirus 229E (HCoV-229E) is responsible for common colds. Like other coronaviruses, HCoV-229E exploits cellular proteases to activate fusion mediated by the spike protein. We analysed the proteolytic processing of the HCoV-229E spike protein by trypsin-like serine proteases leading to activation of the fusion process. Unlike in other coronaviruses, HCoV-229E fusion activation appears to be a one-step process. Indeed, cleavage of the S1/S2 interface does not seem to be a prerequisite, and the fusion activation is highly reliant on the S2' region, with arginine residue 683 acting as the recognition site.
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