The phrase "serve roles" is correct and can be used in written English.
It usually means to fulfill or undertake a particular role. For example: Women often serve roles in the home and in the workplace.
Imprinted genes that serve roles in growth regulation are often aberrantly expressed in cancers [3], [4].
Homologues of both dsbG and mucD are known to serve roles in virulence in other organisms [ 22, 23].
Once again, it is very interesting that both K-ras and MSI may serve roles in predicting survival as well as in treatment selection.
There exists over one million genetically diverse nematode species outside of Caenorhabditis [ 13, 14] that are also coming to serve roles as models for other evolutionary phenomena.
Regulatory domains are not only important for modulating catalytic activity but also serve roles in other functions, including localization, DNA binding, and protein protein interactions.
Hemocyanins have also been hypothesized to serve roles in the degradation of lignin since transcripts encoding hemocyanins are highly expressed in a symbiont-free, wood-feeding marine isopod, but no direct involvement in this process has been demonstrated [ 89].
Vitronectin is a multifunctional plasma and ECM protein, which serves roles in cell adhesion, complement activation, coagulation and fibrinolysis [ 36- 39].
Some RNAs also serve direct roles in cellular metabolism.
Lysosomes, which eat more slowly than proteasomes, serve different roles that are no less essential.
Conclusions: Different carbonic anhydrase isoenzymes may serve different roles in the G6PD-deficient erythrocyte.
"The sets, objects, and colors all serve important roles to the storytelling in his movies.
