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. 2020 Jun 12;11:814. doi: 10.3389/fpls.2020.00814

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Copyright © 2020 Wang, Chen, Yang, Sun, Ding, Li, Xu and Tan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Protein fragments required for interactions of PPR14-PPR-SMR1-Zm-mCSF1. (A) Schematic diagram of full-length and split fragment fusions of PPR14 to GAL4 activating domain (AD) or GAL4 DNA binding domain (BD), respectively. PPR14 protein was split into two fragments: PPR14-NT (N-terminus, 39–127) and PPR14-PPR (128–640). (B) PPR14-PPR^AD physically interacts with Zm-mCSF1^BD. (C) PPR-SMR1^AD physically interacts with PPR14-PPR^BD. PPR-SMR1-NT^AD physically interacts with PPR14^BD. (D) PPR14 interacts with the N terminus and C terminus of Zm-mCSF1.