After sun exposure, a chemical tag (phosphate) is added to a protein called MITF, making it stop making pigment and instead team up with other proteins to fix DNA damage.

Evidence from Studies

Supporting (1)

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ATM signaling delays skin pigmentation upon UV exposure by mediating MITF function towards DNA repair mode.

Computational/Algorithm Study

Human

2023 Dec

After sun exposure, a protein called ATM turns on and modifies another protein called MITF, making it stop helping make skin darker and instead help fix sun-damaged DNA by teaming up with different partners. The study proves this exact switch happens.

Contradicting (0)

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No contradicting evidence found

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Source Study

ATM signaling delays skin pigmentation upon UV exposure by mediating MITF function towards DNA repair mode.

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DOI: 10.1016/j.jid.2023.03.1686

Similar Assertions

After you get sunburned, your skin temporarily stops making tan pigment because a protein called ATM redirects another protein (MITF) to fix DNA damage instead of making color.

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85%

If you block the ATM protein in skin, the skin tans more after sun exposure because it can’t pause pigment production to fix DNA damage.

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72%