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)

Community contributions welcome

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

Computational/Algorithm Study

Human & Animal

2023 Dec

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.

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.

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.

72%