Results 21 to 30 of about 1,209,228 (250)

A gammaherpesvirus complement regulatory protein promotes initiation of infection by activation of protein kinase Akt/PKB. [PDF]

open access: yes, 2010
Viruses have evolved to evade the host's complement system. The open reading frames 4 (ORF4) of gammaherpesviruses encode homologs of regulators of complement activation (RCA) proteins, which inhibit complement activation at the level of C3 and C4 ...
Stewart, James P.   +20 more
core   +1 more source

Backbone dynamics of complement control protein (CCP) modules reveals mobility in binding surfaces [PDF]

open access: yes, 2004
The regulators of complement activation (RCA) are critical to health and disease because their role is to ensure that a complement-mediated immune response to infection is proportionate and targeted.
Krystyna Bromek   +19 more
core   +1 more source

Paths reunited: initiation of the classical and lectin pathways of complement activation [PDF]

open access: yes, 2010
Understanding the structural organisation and mode of action of the initiating complex of the classical pathway of complement activation (C1) has been a central goal in complement biology since its isolation almost 50 years ago.
Schmid, Ralf   +9 more
core   +1 more source

Properdin and factor H: Opposing players on the alternative complement pathway "see-saw" [PDF]

open access: yes, 2013
This article has been made available through the Brunel Open Access Publishing Fund.Properdin and factor H are two key regulatory proteins having opposite functions in the alternative complement pathway.
Kouser, L   +17 more
core   +1 more source

Blockade of the kallikrein-kinin system reduces endothelial complement activation in vascular inflammationResearch in context

open access: yesEBioMedicine, 2019
Background: The complement and kallikrein-kinin systems (KKS) are activated during vascular inflammation. The aim of this study was to investigate if blockade of the KKS can affect complement activation on the endothelium during inflammation.
Ingrid Lopatko Fagerström   +10 more
doaj   +1 more source

A hierarchical role for classical pathway complement proteins in the clearance of apoptotic cells in vivo [PDF]

open access: yes, 2000
The strongest susceptibility genes for the development of systemic lupus erythematosus (SLE) in humans are null mutants of classical pathway complement proteins. There is a hierarchy of disease susceptibility and severity according to the position of the
H. Terence Cook   +29 more
core   +1 more source

The Sez6 Family Inhibits Complement by Facilitating Factor I Cleavage of C3b and Accelerating the Decay of C3 Convertases

open access: yesFrontiers in Immunology, 2021
The Sez6 family consists of Sez6, Sez6L, and Sez6L2. Its members are expressed throughout the brain and have been shown to influence synapse numbers and dendritic morphology. They are also linked to various neurological and psychiatric disorders.
Wen Q. Qiu   +7 more
doaj   +1 more source

Leptospira interrogans endostatin-like outer membrane proteins bind host fibronectin, laminin and regulators of complement [PDF]

open access: yes, 2007
The pathogenic spirochete Leptospira interrogans disseminates throughout its hosts via the bloodstream, then invades and colonizes a variety of host tissues.
Matthew L Rotondi   +54 more
core   +1 more source

Borrelia recurrentis employs a novel multifunctional surface protein with anti-complement, anti-opsonic and invasive potential to escape innate immunity [PDF]

open access: yes, 2009
Borrelia recurrentis, the etiologic agent of louse-borne relapsing fever in humans, has evolved strategies, including antigenic variation, to evade immune defence, thereby causing severe diseases with high mortality rates.
Schott, Melanie   +26 more
core   +2 more sources

Anti-GD1a antibodies activate complement and calpain to injure distal motor nodes of Ranvier in mice [PDF]

open access: yes, 2010
The motor axonal variant of Guillain-Barré syndrome is associated with anti-GD1a immunoglobulin antibodies, which are believed to be the pathogenic factor. In previous studies we have demonstrated the motor terminal to be a vulnerable site.
Halstead, S.   +7 more
core   +2 more sources

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