Download MendeleyStructural and histone binding studies of the chromo barrel domain of TIP60.
Zhang, Y., Lei, M., Yang, X., Feng, Y., Yang, Y., Loppnau, P., Li, Y., Yang, Y., Min, J., Liu, Y.(2018) FEBS Lett 592: 1221-1232
- PubMed: 29494751
- DOI: https://doi.org/10.1002/1873-3468.13021
- Primary Citation of Related Structures:
4QQG - PubMed Abstract:
Tat-interactive protein 60 consists of an N-terminal chromo barrel domain (TIP60-CB) and a C-terminal acetyltransferase domain and acetylates histone and nonhistone proteins in diverse cellular processes. While TIP60-CB is thought to recognize histone tails, molecular details of this interaction remain unclear. Here, we attempted a quantitative analysis of the interaction between the human TIP60-CB and histone peptides, but did not observe any detectable binding by either fluorescence polarization or isothermal titration calorimetry assays. We also determined the crystal structure of the TIP60-CB alone. Analysis of the apo-structure reveals a putative peptide-binding site that might be occluded by the basic side chain of a residue in a unique β hairpin between the two N-terminal strands of the β barrel, leading to the inability of TIP60-CB to bind histones.
Organizational Affiliation:
Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan, China.
