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Sugar maple spotting slows as Canada's fall color fades
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Red oak spotting slows down as fall colors fade
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Milkweed sightings stay high across Canada as autumn sets in
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Invasive buckthorn sightings surge across Canada this week
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Pokeweed sightings dip slightly as fall observation seaso...
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This weedy wetland plant is everywhere on iNaturalist this week
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Eastern redcedar is having a moment on iNaturalist this week
iNaturalist:
Sugar maple spotting slows as Canada's fall color fades
iNaturalist:
Red oak spotting slows down as fall colors fade
iNaturalist:
This fuzzy forest moss is suddenly everywhere in Canada
iNaturalist:
Milkweed sightings stay high across Canada as autumn sets in
Cell-recycling protein turns out to double as a flu virus fighter
PubMed · 2026-09-16
A protein best known for helping cells recycle their own parts also helps the body fight influenza A by boosting the antiviral interferon alarm. It works through a separate route from recycling, which points to new ways of thinking about flu defenses in animal and human cells.
1
ATG13 restricts influenza A virus replication and enhances type I interferon antiviral signalling.
2
ATG13 binds the signalling protein MAVS and recruits the E3 ubiquitin ligase ASB1, which adds K63-linked polyubiquitin chains at the K348 residue of MAVS.
3
Dual-luciferase reporter assays and pharmacological autophagy inhibition showed the antiviral role is independent of canonical autophagy.