Redox-Sensitive Axonemal Switch Links Heme to Calcium Signaling in Flagella
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Personalized briefing
Discovery of the day · Cell Biology
Heme-binding protein CYB5D1 couples intraflagellar redox to calcium signaling for coordinated flagellar beating
Dear Abdel Halim Harrath, this is your personalized scientific intelligence briefing — curated for your work in Cell Biology.
Key finding
Biology · Cell Biology
Discovery of the day
This study identifies CYB5D1 as an evolutionarily conserved, heme-binding axonemal protein that operates as a redox-sensitive switch in flagella. The researchers demonstrate that CYB5D1 converts redox dynamics into Ca2+-mediated mechanical dominance switching, thereby coordinating flagellar beating through a previously unknown signaling axis. For your research on cellular and tissular disruptions, this redox-to-calcium coupling provides a mechanistic framework relevant to ciliary and flagellar dysfunction, with potential implications for fertility and developmental programming where axonemal integrity is critical.
Novelty
92%
Rigor
85%
Significance
90%
Validity
82%
Clarity
88%
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