affinity labeling(redirected from Affinity Labelling)
Also found in: Medical.
affinity labeling[ə′fin·əd·ē ′lā·bə·liŋ]
A method for introducing a label into the active site of an enzyme by relying on the tight binding between the enzyme and its substrate (or cofactors).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.