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originally, either of two identical fragments, each containing an antigen combining site, obtained by papain cleavage of the IgG molecule; now generally used as an adjective in terms such as Fab fragment or region, referring to an “arm” of any immunoglobulin monomer, i.e., one light chain and the adjoining heavy chain VH and CH1 domains.
digoxin immune Fab (ovine) a preparation of antigen-binding fragments derived from specific antidigoxin antibodies produced in sheep that have been immunized with digoxin coupled as a hapten to human serum albumin, used as an antidote to life-threatening digoxin and digitoxin overdose; administered intravenously.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Abbreviation for French-American-British (classification of acute leukemias). See: FAB classification.
Farlex Partner Medical Dictionary © Farlex 2012
alcopopA popular term for any of the alternative beverages that were formulated in response to an increase in the US federal wine tax in the early 1990s. The spirits industry responded by moving away from wine coolers to malt-based alcoholic beverages including "hard" lemonades and fruit coolers and drinks.
FANCBA gene on chromosome Xp22.2 that encodes a protein of the Fanconi anaemia complementation group (here, complementation group B), the members of which are related not by sequence similarity, but rather by their assembly into a common nuclear protein complex.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
Abbreviation for French-American-British classification system.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
fabThe monovalent antigen-binding fragment of an antibody molecule obtained when the protein is digested with the enzyme papain. It consists of an intact light chain and the immediately-associated terminal and domains of a heavy chain.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005