Figure 2.

Transcriptional and Translational Regulators of ABI4.

(A) Transcriptional level regulation involving transcription factors regulating ABI4 transcript levels (positively and negatively) in different tissues or developmental stages.

(B) The known factors involved in degradation of ABI4 protein; also highlighted is the unknown factor that is possibly directly involved in the ubiquitination of ABI4 and enhances its turnover. X indicates the unidentified subunit of E3 ligase directly participating in the degradation of the ABI4 protein.