International Journal of Molecular Sciences Article Stabilization of Intrinsically Disordered DKK2 Protein by Fusion to RNA-Binding Domain Hye Min Lee 1,2, Soon Bin Kwon 1,2, Ahyun Son 1,2 , Doo Hyun Kim 3, Kyun-Hwan Kim 3, Jonghyo Lim 4, Young-Guen Kwon 4, Jin Sun Kang 5, Byung Kyu Lee 5, Young Ho Byun 1,2 and Baik L. Seong 1,2,* 1 Department of Biotechnology, College of Life Sciences and Biotechnology, Yonsei University, Seoul 03722, Korea;
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[email protected] (Y.H.B.) 2 Vaccine Translational Research Center, Yonsei University, Seoul 03722, Korea 3 Department of Pharmacology, and Center for Cancer Research and Diagnostic Medicine, IBST, School of Medicine, Konkuk University, Seoul 05030, Korea;
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[email protected] (Y.-G.K.) 5 ProCell R&D Institute, ProCell Therapeutics, Inc., Ace-Twin Tower II, Guro3-dong, Guro-gu, Seoul 08381, Korea;
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[email protected]; Tel.: +82-2-2123-2885 Received: 29 March 2019; Accepted: 10 June 2019; Published: 11 June 2019 Abstract: Intrinsic disorders are a common feature of hub proteins in eukaryotic interactomes controlling the signaling pathways. The intrinsically disordered proteins (IDPs) are prone to misfolding, and maintaining their functional stability remains a major challenge in validating their therapeutic potentials.