The phrase "as a gatekeeper between" is correct and usable in written English.
It can be used to describe a role or function that regulates or controls access between two entities or groups.
Example: "The manager acts as a gatekeeper between the employees and upper management, ensuring that communication flows smoothly."
Alternatives: "as a mediator between" or "as a barrier between".
Mooney acted as a gatekeeper between Thompson and his fans.
But shortly after that, in 2011, Adblock Plus was altered and became a tool that, instead of blocking bad ads, allowed ads it deemed "acceptable" to be seen, often for a price — a controversial move that has positioned it as a gatekeeper between advertisers and its huge user base.
Player H28 stands as a gatekeeper between large numbers of players distributed across widely dispersed sub-networks.
A key concept with high betweenness centrality controls access to other key concepts in the network [10, 62, 67, 68] and thus serves as a gatekeeper between different domains [69].
He maintained those ties since taking over in a critical position that controls the flow of information at the Interior Department, serving as a gatekeeper between Secretary Ryan Zinke and outside organizations.
The GP plays a central role in preventive health care, diagnosis and treatment, and acts as a gatekeeper between the primary and the secondary health-care systems.
He said his job was to act as a "super PA", a gatekeeper between Mr Timms and department officials.
However, there is growing evidence that also the small intestine can play a role in the etiology of obesity and/or insulin resistance, as it serves as a gatekeeper at the physical interphase between body and diet.
Thus, GluD2 may serve as a gatekeeper for LTD induction by coordinating interactions between GluA2's 2 phosphorylation sites.
Its demonstration of how SWI/SNF ATPase activity may act as a "gatekeeper" to auxin responses by direct interaction between auxin response factor MP and nucleosome remodeling factors BRM and SYD provides an important mechanistic insight into auxin activity.
