Integrated security forces from all ethnic groups, restored cohesion among the many segments of Iraqi society – this was the hope amid the surge, back when I was the mayor in Tal Afar.
Surface consolidation, directed to restore cohesion and stability, is based on the use of materials with aggregating properties.
smc1-D1164E also partially restored cohesion establishment in eco1∆ wpl1∆ cells at the CEN-distal locus, LYS4.
(B,C) smc1-D1164E parestoredrestored cohesion in eco1 △ wpl1 △ cells at the CEN -proximal TRP1 locus.
Indeed, we recently reported one such benomyl-resistant suppressor allele, smc3-D1189H (Guacci et al., 2015), that restored cohesion.
These cohesion activators restore cohesion in eco1∆ wpl1∆ cells without increasing the amount of cohesin stably bound to DNA (this study, Guacci et al., 2015).
Alternatively, the fact that we observe compensation in some cells, in addition to the genetic background influences on the severity of RBS in humans, suggests that, if we can restore cohesion, we can remedy many of the RBS phenotypes.
Taken together, these results suggest that smc1-D1164E restored cohesion by phenocopying both Eco1's antagonism of Wpl1 and its ability to promote stably DNA-bound cohesin to tether sister chromatids.
A screen for suppressors of the benomyl sensitivity of eco1∆ wpl1∆ cells should identify a subset of mutations that restore cohesion and the cohesin-dependent benomyl-resistant mechanism of segregation.
We found that expression of the mutants was comparable to that of the WT construct, but although the WT construct was able to restore cohesion, neither of the cancer-associated mutant constructs could, suggesting that tumor cells bearing these mutations have compromised centromeric cohesion.
