This leads us to suggest that the decay of δ is linked to a reversion of the binding step Rf (backward step Rb).
As shown in Figure 4B, the activity of the destabilizing mutation R384G is fully rescued by a stabilizing mutation, such as N334H in Aichi/1968 or reversion of L259S in Step 21.
Since the process is reversible, reversions and convergences are equivalent, and we are thus computing the n-step homoplasy probability, i.e. the posterior predictive average probability that, at a given site, two species separated by n > 0 substitutions along the tree will be found in the same state.
Note that since the process is reversible, reversions and convergences are equivalent, and thus, as a function of n, what we are computing is the n-step homoplasy probability, i.e. the probability that at a given site, two species separated by n > 0 substitutions along the tree will be found in the same character state.
The mechanisms of precipitate evolution during the reversion and re-ageing steps are discussed in light of the influence of the process parameters.
This has been interpreted as a potential requirement for EMT to accomplish the first steps of metastasis and a reversion (MET) to accomplish the final step of colonization.
Formally, this suggests a reversion process that follows a step function, dropping to wt levels at t = −1 (first-generation progeny of two parents).
The Escherichia coli WP2 tryptophan reverse mutation assay detects trp– to trp+ reversion at a site blocking a step in the biosynthesis of tryptophan prior to the formation of anthranilic acid.
It should be noted that in this system G- and T-segments are contiguous in one strand and no DNA will be released in P2 fraction but complete reversion of the intermediate after immunoprecipitation step would generate closed circles in P2.
This morphological epithelial behaviour could represent an early step of the EMT reversion.
