The phrase "a number of interactions between" is correct and usable in written English.
It can be used when discussing multiple exchanges or communications that occur between two or more entities or subjects.
Example: "The study focused on a number of interactions between the two species in their natural habitat."
Alternatives: "several exchanges between" or "multiple interactions among".
Not surprisingly, there appear to be a number of interactions between various flue gas constituents that affect mercury speciation.
Structural analysis of the antibody Fc region indicates a number of interactions between CH2 inner surface amino acids and neighboring carbohydrates [25], [26].
The structure of the VSV RNA-nucleoprotein complex also shows a number of interactions between neighboring nucleoproteins; each one is in contact with three neighboring N molecules forming a tetramer [20].
We note that our results failed to detect a number of interactions between HCMV virion proteins that have been previously identified by YTH analysis, including the seven interactions (i.e. self-interaction of UL44 and UL45; interaction of UL32-UL45, UL69-UL88, UL86-UL46, UL94-US22, UL86-UL46) recently recently [20].
There are also a number of interactions between COP9 signalosome subunits and non-complex members.
The ED is a complex environment that involves a number of interactions between patients and staff.
Finally, the model included a number of interaction terms between covariates and between specific time-independent variables and a logarithmic transformation of time.
The fact that inclusion of a GU wobble still resulted in a significant number of interactions between the 3'-ends and uAUGs suggests functionality.
Lastly and most importantly, a biologically relevant complex is expected to have a substantial number of interactions between the ligand, and the enzyme and the residues involved in these interactions must be evolutionarily conserved.
Agent based platforms provide a means for creating applications that run independently of operating system and network architecture; as a result, agents have become part of many systems and support a large number of interactions between different systems.
The Voyager images also recorded a large number of interactions between the Great Red Spot and much smaller disturbances moving in the current at the same latitude.
