The phrase "alternative affinity" is correct and usable in written English.
It can be used in contexts where you are discussing different types of preferences or attractions, particularly in fields like psychology, marketing, or social sciences.
Example: "In the study of consumer behavior, researchers found that individuals often exhibit an alternative affinity for brands that align with their personal values."
Alternatives: "different preference" or "varied attraction".
An Escherichia coli expression vector for intracellular T7 promoter (PT7) driven production was constructed with an N-terminal dual affinity tag, consisting of a hexahistidyl (His6) tag in frame with the ZSPA-1 tag, thus allowing alternative affinity recovery methods.
While antibodies currently play a dominant role as affinity reagents in biological research and for diagnostics, a broad range of recombinant proteins are emerging as promising alternative affinity reagents in detection assays and quantification.
Recently, an alternative affinity technique, PolyMAC, was introduced for phosphopeptide enrichment (Iliuk et al. 2010).
We thus focused our attention on the feasible use of "glycolipid biosurfactants" as an alternative affinity ligand for IgG, the most dominant and essential immunoglobulin in mammalians.
Alternative affinity reagents have been developed in part to address these issues, but they often have limitations of their own, such as lack of specificity or stability, that have prevented their further development into diagnostic practice.
Interestingly, while both other Aquificae were missing from the rLP solution, Thermosipho melanesiensis and Nitratiruptor sp. SB155-2 which represent alternative affinities for the Aquificae lineage were both present.
Using all of the available data (or, more precisely, all data that can be examined using a particular approach) can reveal a multitude of alternative affinities.
Since many alternative affinities shown in Figure 4 involve disagreement at the species level or finer, a screening pass might be used to remove congeners whose affinities outside of their own genus are similar to other congeners that are retained.
This wide range of affinities may help to explain the unusual placement of this group in the genome phylogeny of Figure 6, and is consistent with the alternative affinities seen in the genus-level IAG.
While protein synthesis genes are thought to be particularly recalcitrant to LGT, the alternative affinities here may be due to aminoacyl-tRNA synthetases and other proteins that do not form part of large complexes [ 46].
Second, all splits in this network must be circularly compatible [ 60], which limits the representation to a two-dimensional, planar graph, with the consequence that many alternative affinities may still not be displayed.
