"operative role" is a valid phrase in written English.
You can use it to refer to someone's active involvement in carrying out a function or task within an organization. For example, "The company hired him as a consultant to fill an operative role in developing their new product line."
"They will not play an operative role in Daimler management, that's for sure," a spokesman for Daimler told Forbes.
For his Islamic predecessors it is, of course, Muhammad who plays this operative role as the virtuous lawgiving prophet able to lead a community to virtue through the creative imagery and persuasions of religion through the imaginative and rhetorically persuasive imageries of the Quran.
That especially holds for Bloomberg, who believes that government has an operative role in protecting us from our internal demons.
Given the present evidence, the increased mammary mitogenesis observed during the progesterone-dominant luteal phase of the human menstrual cycle [ 47] could involve an operative role of RANKL.
There is a 77% probability of 1.3m "repetitive and predictable" administrative and operative roles being automated.
Our previous findings that EGFR mutations were associated with tumor initiation while EGFR CNG might be more regarded as a tumor progression event, provide further evidence of their co-operative role in tumorgenesis [45].
Previously, it was shown that the accumulation of MGDG in cucumber seedlings required cytokinin in addition to light, and that both factors play a co-operative role [ 90].
A possible explanation could be based in a co-operative role for the PKA and calcineurin pathways in the adaptive response to high pH stress.
Rather, women appear to play what Stewart and Strathern [ 44] would describe as a complimentary and co-operative role as evident by the descriptions provided by the informants.
In isolated pancreatic islets the two peptides appear to have a co-operative role in regulating peptide secretion: combined imunoneutralisation of amylin and somatostatin resulted in greater enhancement of insulin and glucagon secretion than neutralisation of either alone [ 10].
We and others have recently identified a co-operative role of Src and ezrin in regulating disruption of cadherin-based cell-cell contacts [ 33], cell spreading and cell morphogenesis [ 5] in epithelial cells.
