Fcab

Fcabs are antibodies fragments engineered from the constant region of an antibody (Fc).[1] In naturally occurring antibodies (such as IgGs), the antigen-binding sites are located at the variable regions (Fab).

This article is about the antibodies. For the South American railway known as FCAB, see Ferrocarril de Antofagasta a Bolivia.

Overview

Fcabs can be expressed as soluble proteins or they can be engineered back into a full IgG. This type of antibodies are therefore able to recognise two different antigens, one at their Fab region and a second one at the Fc region, hence the name of bispecific antibodies. This antibody fragment is part of the modular antibody technology of F-star Biotechnology Ltd.

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References
  1. Wozniak-Knopp G, Bartl S, Bauer A, Mostageer M, Woisetschläger M, Antes B, Ettl K, Kainer M, Weberhofer G, Wiederkum S, Himmler G, Mudde GC, Rüker F (2010). "Introducing antigen-binding sites in structural loops of immunoglobulin constant domains: Fc fragments with engineered HER2/neu-binding sites and antibody properties". Protein Eng Des. 23 (4): 289–297. doi:10.1093/protein/gzq005. PMID 20150180.

See also
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