affinity reagent

noun

An antibody, peptide, nucleic acid, or other small molecule that specifically binds to a larger target molecule in order to identify, track, capture, or influence its activity.

Meanings

nounaffinity reagent (plural affinity reagents)

plural affinity reagents

  1. biochemistryAn antibody, peptide, nucleic acid, or other small molecule that specifically binds to a larger target molecule in order to identify, track, capture, or influence its activity.

    Finally, the recovery of the target protein should be attempted by washing with a suitable eluant so that the target protein dissociates from the affinity reagent.

    1994, G. Street, chapter 2, in Highly selective separations in biotechnology, →ISBN, page 10
Cite this entry
APA

affinity reagent. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/affinity%20reagent

MLA

“affinity reagent.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/affinity%20reagent. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “affinity reagent,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/affinity%20reagent.

Source: affinity reagent on Wiktionary, CC BY-SA 4.0.