Results 31 to 40 of about 375,488 (189)

Complement C1s as a diagnostic marker and therapeutic target: Progress and propective

open access: yesFrontiers in Immunology, 2022
The molecules of the complement system connect the effectors of innate and adaptive immunity and play critical roles in maintaining homeostasis. Among them, the C1 complex, composed of C1q, C1r, and C1s (C1qr2s2), is the initiator of the classical ...
Jun Ye   +4 more
doaj   +1 more source

The axis of complement C1 and nucleolus in antinuclear autoimmunity

open access: yesFrontiers in Immunology, 2023
Antinuclear autoantibodies (ANA) are heterogeneous self-reactive antibodies that target the chromatin network, the speckled, the nucleoli, and other nuclear regions.
Shan Wu   +15 more
doaj   +1 more source

Characteristics of complement subcomponents C1r and C1s synthesized by Hep G2 cells [PDF]

open access: yesBiochemical Journal, 1986
The association and activation states of complement subcomponents C1r and C1s biosynthesized by Hep G2 cells were studied. C1r and C1s are secreted in stoichiometric amounts; in the presence of Ca2+ they are associated in a complex that sediments similarly to plasma C1r2-C1s2.
A, Reboul, J C, Bensa, M G, Colomb
openaire   +2 more sources

Characterization and functional analysis of mouse Ficolin B [PDF]

open access: yes, 2012
The innate immune system contributes day by day to the elimination of invading pathogens. The lectin pathway of the complement system is initiated when mannose-binding-lectin (MBL) or ficolins interact with MASP-2.
Hunold, Katja
core   +1 more source

Prohaptoglobin is proteolytically cleaved in the endoplasmic reticulum by the complement C1r-like protein [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
Many secretory proteins are synthesized as proforms that become biologically active through a proteolytic cleavage in the trans-Golgi complex or at a later stage in the secretory pathway. Haptoglobin (Hp) is unusual in that it is cleaved in the endoplasmic reticulum before it enters the Golgi.
Krzysztof B, Wicher, Erik, Fries
openaire   +2 more sources

Structural determination of the complement inhibitory domain of Borrelia burgdorferi BBK32 provides insight into classical pathway complement evasion by Lyme disease spirochetes.

open access: yesPLoS Pathogens, 2019
The carboxy-terminal domain of the BBK32 protein from Borrelia burgdorferi sensu stricto, termed BBK32-C, binds and inhibits the initiating serine protease of the human classical complement pathway, C1r.
Jialei Xie   +5 more
doaj   +1 more source

Assembly and Enzymatic Properties of the Catalytic Domain of Human Complement Protease C1r [PDF]

open access: yesJournal of Biological Chemistry, 2001
The catalytic properties of C1r, the protease that mediates activation of the C1 complex of complement, are mediated by its C-terminal region, comprising two complement control protein (CCP) modules followed by a serine protease (SP) domain. Baculovirus-mediated expression was used to produce fragments containing the SP domain and either 2 CCP modules (
M, Lacroix   +7 more
openaire   +2 more sources

Prepubertal Periodontitis in a Patient with Combined Classical and Periodontal Ehlers–Danlos Syndrome

open access: yesBiomolecules, 2021
We report an extremely rare case of combined classical and periodontal Ehlers−Danlos syndrome (EDS) with early severe periodontitis and a generalized lack of attached gingiva.
Friedrich Stock   +6 more
doaj   +1 more source

Subunits of C1Q Are Associated With the Progression of Intermittent Claudication to Chronic Limb-Threatening Ischemia

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundThe pathophysiological mechanisms of intermittent claudication (IC) progression to chronic limb-threatening ischemia (CLTI) are still vague and which of patients with IC will become CLTI are unknown.
Ziping Yao   +6 more
doaj   +1 more source

Early Components of the Complement Classical Activation Pathway in Human Systemic Autoimmune Diseases

open access: yesFrontiers in Immunology, 2016
The complement system consists of effector proteins, regulators, and receptors that participate in host defense against pathogens. Activation of the complement system, via the classical pathway (CP), has long been recognized in immune complex-mediated ...
Katherine eLintner   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy