The phrase "affinity phase" is correct and usable in written English.
It can be used in contexts related to chemistry, biology, or technology, where it refers to a specific stage or condition related to affinity interactions.
Example: "During the affinity phase of the experiment, we observed a significant increase in binding efficiency."
Alternatives: "binding stage" or "interaction phase".
When SULT1A1 turnover is plotted versus PAPS concentration at a saturating 1-HP concentration, distinct low- and high-PAPS affinity phases are observed.
Several testable predictions such as crystallizing the structureture or characterizing the high-affinity phase for P-LE wedge cleft can be proposed to elucidate the biological significance of the novel S1' conformation in future studies.
Another group identified two CIPKs that mediate nitrate nutrition, among which CIPK8 positively regulates the low-affinity phase of the primary nitrate response and CIPK23 can phosphorylate T101 of CHL1 (NRto.1) to maintain a low-level primary response [ 12, 28].
AtCIPK8 regulates the low-affinity phase of the primary nitrate response [ 28], while CIPK24 (SOS2) is required for extrusion of Na+ from the cytosol to the extracellular matrix [ 13].
The transition of high-affinity to low-affinity phase, was suggested to arise from an increase in the dissociation rate constant of ferricyt c (the rate-limiting step) when the regulatory site was bound by a second cyt c.
For the purpose of the present study, a comparison of WTCOX5A, COX5B and ΔROX1ΔCOX5A isoenzymes has been made with the high-velocity/low-affinity phase data since it is the phase that may predominate under physiological conditions since cyt c concentration in the intermembrane space is at 0.5 mM [ 43] and it is observed for horse heart, yeast iso-1 and iso-2 cyt c (Table 3).
Similarly, supply of nitrate to roots of Arabidopsis increased mRNA levels of a dual-affinity nitrate transporter, with Km values of 50 and 4000 µM for high and low-affinity phases, after 30 minutes and nitrate uptake increased in the following 2 to 3 hours [31].
Interestingly, the transport Kms of both high- and low-affinity phases matched the values obtained for the fluorescence response, supporting the hypothesis that NiTrac measures the transport activity.
This suggests the formation of a high band-gap (low electron affinity) interfacial phase between the Ge and ITO components of the nanocomposite.
Ion-exchange, affinity reversed phase, and hydrophobic interaction membranes have been developed and Pall (New York, USA) Mustang Q and S membranes are examples of anion- and cation-exchange membranes, respectively.
