CD40

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Notion

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Science and technology

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What Wikipedia says

Cluster of differentiation 40, CD40 is a type I transmembrane protein found on antigen-presenting cells and is required for their activation. The binding of CD154 (CD40L) on TH cells to CD40 activates antigen presenting cells and induces a variety of downstream effects.

Excerpt from the Wikipedia article “CD40”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Pleiotrope, Public domain, via Wikimedia Commons.