The phrase "a necessary role of" is correct and usable in written English.
It can be used to describe the importance or essential function of something within a particular context or system.
Example: "Education plays a necessary role of fostering critical thinking skills in students."
Alternatives: "an essential function of" or "a vital part of".
The loss in PLR, coupled with normal ERG in DT-treated Opn4Cre/+ R26iDTR/+ mice implies a necessary role of mRGCs in dynamic adaptation of pupil size to ambient light.
This suggests a necessary role of this domain for the correct regulation by MeCP2.
Controversial results from investigating γ-secretase-independent presenilin function indicated a necessary role of PS1 in lysosomal acidification via a novel mechanism [ 33].
These results may therefore either be interpreted as being consistent with a necessary role of myocyte Ar in the androgenic masculinization of the SNB, or they may be interpreted as a modulatory role for myocyte Ar in this process.
The generation of transgenic mice with impaired central nervous system autophagy revealed ubiquinated protein inclusions and neurodegeneration to conclusively expose a necessary role of autophagy in neuronal health [ 18, 19].
In its most general terms, Kant is here concerned to establish a necessary role for reason's principle of systematic unity.
Rescue experiments indicated a necessary role for the transcription activity of muscle Ctnnb1 in presynaptic differentiation.
In sea urchins, a necessary role for SpLox in the activation of SpCdx transcription and for SpCdx in the repression of SpLox transcription within hindgut cells has been demonstrated [ 8].
A recent study from our laboratory showed that increased CICR plays a necessary role in the emergence of Ca2+-related biomarkers of aging.
These results suggest that NKDC maturation induced by α-GC requires NKT cells, implying that NKT cells play a necessary role in the development of NKDCs but not in the development of DCs.
Read in this way, the first book of the Prolegomena can avoid the endlessly disputed question of the ontological status of the objects that appear to play a necessary role in the origination of sense data in the human mind.
