2021
DOI: 10.1101/2021.09.10.459772
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Mechanistic insight into light-dependent recognition of Timeless by Drosophila cryptochrome

Abstract: Cryptochrome (CRY) entrains the fly circadian clock by binding to Timeless (TIM) in light and triggering its degradation. Undocking of a helical C-terminal tail (CTT) in response to photoreduction of the CRY flavin cofactor gates TIM binding. A generally-applicable Select Western-blot-Free Tagged-protein Interaction (SWFTI) assay enables quantification of CRY binding to TIM in dark and light. The assay is utilized to study CRY variants with residue substitutions in the flavin pocket and correlate their TIM aff… Show more

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