The phrase "as a functional assay" is correct and usable in written English.
It can be used in scientific or technical contexts to refer to a method or test that measures the activity or function of a substance, often in biological or biochemical research.
Example: "The researchers conducted the experiment as a functional assay to evaluate the effectiveness of the new drug."
Alternatives: "as a functional test" or "in a functional evaluation".
Thus, as a functional assay, the CDC detects only antibodies which exert their detrimental function by their complement-fixing activity.
We used parthenogenic development as a functional assay of cytoplasmic maturation.
Finally, as a functional assay, we induced LTP in the dentate gyrus two weeks following the exercise period.
This ADCI effect, validated by a clinical experiment, thereafter served as a functional assay for the identification of the targets of protective IgG.
TSP1 inhibits NO/cGMP-stimulated VSMC adhesion on collagen [40], and we used this adhesion as a functional assay of the effect of Aβ on cGMP production.
In this work we have biochemically characterized the contribution of several p53 transcriptional cofactors with acetyl transferase activity to the induction of VRK1 downregulation that was used as a functional assay.
The p.R3052W variant of BRCA2 has also been recently classified as deleterious based on a functional assay that measures the DNA-repair function by homologous recombination [ 33].
Nevertheless, as indicated in Figure 5, a functional assay of Nrf2 pathway strongly supports the results obtained from microarray analysis.
The vHTS hits can be validated by a functional assay such as the quantitative endocytosis assay described in the current study.
For the characterization of T cells, current data support the use of a functional assay such as the ELISpot or ICS in conjunction with a phenotyping assay like HLA multimers [ 9].
For example, the diagnostic accuracy of a new genomic assay to measure cystic fibrosis transmembrane conductance regulator (CFTR) genotype would be compared with a functional assay, such as the sweat test, which is still the current standard for diagnosing cystic fibrosis [ 22].
