eLife assessment
This paper presents important new data related to the non-canonical SMC complex MukBEF in E. coli, which remains less well understood compared to more canonical SMC complexes in many other bacteria. The authors use a combination of Hi-C and ChIP-seq to demonstrate that MukBEF loads at multiple locations along the chromosome, preferentially in newly replicated DNA, with the MatP/matS system antagonizing MukBEF activity and localizing in terminus proximal regions. Most of the data to support these findings are compelling, with modest concerns raised about the effect sizes of the ChIP-seq data, which could be bolstered with some additional controls.