It is worth noting that a study conducted by Jiateng Zhong (2013), suggests that IKKβ (not identified by our searches) could phosphorylate Twist1 at multiple sites within the first 30 amino acids of Twist1’s N-terminus to trigger Twist destruction by β-TRCP in HeLa cervical cancer cells [50]. The gene discussed is TWIST1; the disease is cervical carcinoma.