This family includes the cell division inhibitor SulA, which binds to FtsZ and halts cell division [1]. It binds the T7 loop surface of FtsZ, which locates opposite the nucleotide-binding site, and blocks polymer formation [1].

1: Crystal structure of the SOS cell division inhibitor SulA and in complex with FtsZ. Cordell SC, Robinson EJ, Lowe J; Proc Natl Acad Sci U S A. 2003;100:7889-7894. PMID:12808143