Crystal Structure of the Z-Ring Associated Cell Division Protein Zapc from Escherichia Coli.
Ortiz, C., Kureisaite-Ciziene, D., Schmitz, F., Mclaughlin, S.H., Vicente, M., Lowe, J.(2015) FEBS Lett 589: 3822
- PubMed: 26619764 
- DOI: https://doi.org/10.1016/j.febslet.2015.11.030
- Primary Citation of Related Structures:  
5FO3 - PubMed Abstract: 
Bacterial cell division involves a contractile ring that organises downstream proteins at the division site and which contains the tubulin homologue FtsZ. ZapC has been discovered as a non-essential regulator of FtsZ. It localises to the septal ring and deletion of zapC leads to a mild phenotype, while overexpression inhibits cell division. Interference with cell division is facilitated by an interaction with FtsZ. Here, we present the 2.9 Å crystal structure of ZapC from Escherichia coli. ZapC forms a dimer and comprises two domains that belong to the Royal superfamily of which many members bind methylated arginines or lysines. ZapC contains an N-terminal chromo-like domain and a Tudor-like C-terminal domain. We show by ITC that ZapC binds the C-terminal tail of FtsZ.
Organizational Affiliation: 
MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK; Centro Nacional de Biotecnología, CSIC C/ Darwin 3, 28049 Madrid, Spain.