The phrase "a role in the expression of" is correct and usable in written English.
It can be used when discussing the influence or contribution of something in the way an idea, feeling, or concept is conveyed or articulated.
Example: "The gene plays a crucial role in the expression of certain traits in the organism."
Alternatives: "a part in the manifestation of" or "an influence on the articulation of".
Gender appears to have a role in the expression of the genetic vulnerability: males are more likely than females to express tics.
The results suggest that PI3k may play a role in the expression of some of the key regulatory molecules involved in angiogenesis, and perhaps in the growth of endotheliomas.
Accumulating evidence has demonstrated that expression of various CYP enzymes was significantly repressed during liver regeneration, infection or inflammation, suggesting cellular signaling molecules such as growth hormones and cytokines may play a role in the expression of xenobiotic-metabolizing CYPs (Bauer et al., 2004; Koike et al., 2007).
In addition to the retrograde messenger underlying presynaptic expression in early LTP, the retrograde messenger may also play a role in the expression of late LTP.
Although no specific gene has yet been identified, multiple factors are believed to play a role in the expression of autism, given the phenotypic variability seen in children with AS.
The results from this study support the hypothesis that low levels of ERα in the BST play a role in the expression of male prosocial behavior.
If every participant in an organization has a role in designing the expression of core values, the synchrony of the various parts will be much greater.
"Depictions of the intentional infliction of suffering on vulnerable creatures," the brief said, "play no essential role in the expression of ideas".
And no institution plays a greater role in modifying the expression of sexuality than religion.
Contexts play an important role in controlling the expression of extinguished behaviors.
Water temperature and dietary protein play an important role in influencing the expression of somatotropic gene.
