Results 61 to 70 of about 1,235,428 (322)

Functional evaluation of complement factor I variants by immunoassays and SDS-PAGE

Frontiers in Immunology, 2023
Factor I (FI) is an essential regulator of the complement system. Together with co-factors, FI degrades C3b, which inhibits further complement activation.
Alexandra Gerogianni, Alexandra Gerogianni, Laura M. Baas, Dick J. Sjöström, Dick J. Sjöström, Nicole C. A. J. van de Kar, Marit Pullen, Siem J. van de Peppel, Per H. Nilsson, Per H. Nilsson, Lambertus P. van den Heuvel, Lambertus P. van den Heuvel, Lambertus P. van den Heuvel, Lambertus P. van den Heuvel   +13 more
doaj   +1 more source

Aged complement factor H knockout mice kept in a clean barriered environment have reduced retinal pathology [PDF]

, 2016
Age-related macular degeneration (AMD) is the largest cause of visual loss in those over 60 years in the West and is a condition increasing in prevalence.
Hoh Kam, Jaimie, Jeffery, Glen, Morgan, James Edwards   +2 more
core   +1 more source

Variants in Complement Factor H and Complement Factor H-Related Protein Genes, CFHR3 and CFHR1, Affect Complement Activation in IgA Nephropathy [PDF]

Journal of the American Society of Nephrology, 2015
Complement activation is common in patients with IgA nephropathy (IgAN) and associated with disease severity. Our recent genome-wide association study of IgAN identified susceptibility loci on 1q32 containing the complement regulatory protein-encoding genes CFH and CFHR1-5, with rs6677604 in CFH as the top single-nucleotide polymorphism and CFHR3-1 ...
Li, Zhu, Ya-Ling, Zhai, Feng-Mei, Wang, Ping, Hou, Ji-Cheng, Lv, Da-Min, Xu, Su-Fang, Shi, Li-Jun, Liu, Feng, Yu, Ming-Hui, Zhao, Jan, Novak, Ali G, Gharavi, Hong, Zhang   +12 more
openaire   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Factor H autoantibodies in atypical hemolytic uremic syndrome correlate with CFHR1/CFHR3 deficiency [PDF]

, 2008
Atypical hemolytic uremic syndrome (aHUS) is a severe renal disease that is associated with defective complement regulation caused by multiple factors.
Józsi, Mihály, Licht, C., Richter, H., Strobel, S., Zipfel, S. L.   +4 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Human factor H-related protein 2 (CFHR2) regulates complement activation. [PDF]

PLoS ONE, 2013
Mutations and deletions within the human CFHR gene cluster on chromosome 1 are associated with diseases, such as dense deposit disease, CFHR nephropathy or age-related macular degeneration. Resulting mutant CFHR proteins can affect complement regulation.
Hannes U Eberhardt, Denise Buhlmann, Peter Hortschansky, Qian Chen, Sascha Böhm, Markus J Kemper, Reinhard Wallich, Andrea Hartmann, Teresia Hallström, Peter F Zipfel, Christine Skerka   +10 more
doaj   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

A decline of protective apolipoprotein J and complement factor H concomitant with increase in C5a 3 months after cardiac surgery—Evidence of long-term complement perturbations

Frontiers in Cardiovascular Medicine, 2022
BackgroundHeart surgery results in complement activation with the potential for collateral end-organ damage, especially if the protective elements (complement factor H, Apolipoprotein J) are inadequate. Here, we have investigated if peri-operative stress
Krzysztof Laudanski, Krzysztof Laudanski, Krzysztof Laudanski, Da Liu, Damodar Gullipalli, Wen-Chao Song, Tony Okeke, Wilson Y. Szeto   +7 more
doaj   +1 more source