2020
DOI: 10.1039/c9sc05149j
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Influenza as a molecular walker

Abstract: The neuraminidase on the surface of influenza viruses make the virus a receptor-cleaving molecular walker, similar to molecular spiders.

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Cited by 35 publications
(34 citation statements)
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“…Both proteins are able to interact with SAs, but while HA is known to promote IAV attachment to the cell membrane, NA is known to possess SA cleavage activity and is therefore believed to promote IAV egress (after the virus replication cycle has been completed). [28][29][30] The interplay between HA and NA is known to be important for completion of the virus life cycle and started Figure 1. Synthesis of mucin-inspired virus binding (MuVib) inhibitors based on high-molecular weight hPG.…”
Section: Resultsmentioning
confidence: 99%
“…Both proteins are able to interact with SAs, but while HA is known to promote IAV attachment to the cell membrane, NA is known to possess SA cleavage activity and is therefore believed to promote IAV egress (after the virus replication cycle has been completed). [28][29][30] The interplay between HA and NA is known to be important for completion of the virus life cycle and started Figure 1. Synthesis of mucin-inspired virus binding (MuVib) inhibitors based on high-molecular weight hPG.…”
Section: Resultsmentioning
confidence: 99%
“…Therefore, we compared the motility of IAV with the behavior of artificial and simulated molecular walkers and argued that directional motility is intrinsic to receptor-cleaving multivalent particles, rather than a result of asymmetric organization alone. 93 The enhancement of directionality by asymmetric organization in filamentous viruses would allow motility over longer distances, which is consistent with the observation that the filamentous phenotype is more abundant in patient samples than in viruses from eggs or in cell cultures without mucus. 94 Underneath the mucus layer, the periciliary layer forms an even stricter barrier.…”
Section: Binding and Cleaving In The Mucussupporting
confidence: 83%
“…We and others proposed therefore that IAV must use an active molecular walk to cross the periciliary layer ( Figure 2.5b). 93,95…”
Section: Binding and Cleaving In The Mucusmentioning
confidence: 99%
“…Interaction with cell receptors is a key element for the activation of viral infective mechanisms, either directly or by conducting the viral particle to cell regions where these systems can be activated [36,37]. On the other hand, receptor destruction plays an important role in the release of the new viral particles.…”
Section: Discussionmentioning
confidence: 99%
“…The equilibrium between the receptor-binding and -destroying activities is a key element for the infective process, not only in terms of the "input/output" ratio of viral particles, but also in the initial interaction of the pathogen with the cell surface [37,40]. In ISAV, if the primary receptor (5N-4O sialic acids) binding via HE is not affected by the HPR length/esterase activity, possibly a secondary viral protein-cellular ligand interaction is regulated by those elements.…”
Section: Discussionmentioning
confidence: 99%