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. 2018 Feb 20;8(4):e2728. doi: 10.21769/BioProtoc.2728

Figure 1. Model of the auxin inducible-degron system.

Figure 1.

A. In the absence of auxin, the plant auxin receptor TIR1 is in its inactive ‘Apo’ state, allowing the protein of interest (POI)-AID-3HA fusion to express and function normally. B. Auxin-bound TIR1 assembles into an active Skp-Cullen-F Box (SCFTIR1) ubiquitin ligase complex where it recognizes and polyubiquitinates AID. C. The polyubiquitin modification targets POI-AID-3HA for proteasomal degradation.