Lessons from functional and structural analyses of disease-associated genetic variants in the complement alternative pathway

de Córdoba, Santiago Rodríguez, Harris, Claire Louise, Morgan, Bryan Paul ORCID: https://orcid.org/0000-0003-4075-7676 and Llorca, Oscar 2011. Lessons from functional and structural analyses of disease-associated genetic variants in the complement alternative pathway. Biochimica et Biophysica Acta - Molecular Basis of Disease 1812 (1) , pp. 12-22. 10.1016/j.bbadis.2010.09.002

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Abstract

Complement is an essential component of innate immunity and a major trigger of inflammatory responses. A critical step in complement activation is the formation of the C3 convertase of the alternative pathway (AP), a labile bimolecular complex formed by activated fragments of the C3 and factor B components that is fundamental to provide exponential amplification of the initial complement trigger. Regulation of the AP C3 convertase is essential to maintain complement homeostasis in plasma and to protect host cells and tissues from damage by complement. During the last decade, several studies have associated genetic variations in components and regulators of the AP C3 convertase with a number of chronic inflammatory diseases and susceptibility to infection. The functional characterization of these protein variants has helped to decipher the critical pathogenic mechanisms involved in some of these complement related disorders. In addition, these functional data together with recent 3D structures of the AP C3 convertase have provided fundamental insights into the assembly, activation and regulation of the AP C3 convertase.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine Systems Immunity Research Institute (SIURI)
Subjects:	Q Science > QH Natural history > QH426 Genetics R Medicine > R Medicine (General)
Uncontrolled Keywords:	Atypical hemolytic uremic syndrome (aHUS); Membranoproliferative glomerulonephritis type II (MPGN2); Dense deposit disease (DDD); Age-related macular degeneration (AMD); Complement
Publisher:	Elsevier
ISSN:	0925-4439
Last Modified:	19 Oct 2022 10:15
URI:	https://orca.cardiff.ac.uk/id/eprint/23747

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