Results 31 to 40 of about 113,435 (208)

Regulatory proteins for the activated third and fourth components of complement (C3b and C4b) in mice. II. Identification and properties of complement receptor type 1 (CR1).

open access: yesJournal of Immunology, 1985
We identified on the membrane of mouse spleen cells a polypeptide of Mr 190,000 (S190), with binding affinity for the mouse third component of the complement system (C3).
T. Kinoshita, S. Lavoie, V. Nussenzweig
semanticscholar   +1 more source

Quantification of human complement C2 protein using an automated turbidimetric immunoassay [PDF]

open access: yes, 2018
Background: The measurement of complement components is clinically useful where a deficiency is suspected, or where excessive activation and consumption are present in disease.
Brohet, Fabian   +12 more
core   +2 more sources

Assembly of the cytolytic alternative pathway of complement from 11 isolated plasma proteins

open access: yesJournal of Experimental Medicine, 1978
The known cytolytic function of the alternative pathway in serum was quantitatively reproduced by combining 11 isolated plasma proteins at their respective serum concentrations.
Robert D. Schreiber   +1 more
semanticscholar   +1 more source

The Arabidopsis Mutant of the Small Intrinsically Disordered Protein DSS1(V) Exhibits Increased Sensitivity to Drought Stress

open access: yesPlant Direct, Volume 10, Issue 2, February 2026.
ABSTRACT Drought has emerged as one of the most severe and widespread environmental stresses affecting plants. Crops exposed to varying levels of drought, ranging from moderate to severe, often experience notable declines in yield or reduced harvest quality.
Ivana Nikolic   +4 more
wiley   +1 more source

Studies of the molecular mechanisms of C3b inactivation and a simplified assay of beta 1H and the C3b inactivator (C3bINA).

open access: yesJournal of Immunology, 1979
A sensitive radio assay was developed to evaluate and quantitate the function of the control proteins important in the cleavage of cell-bound C3b and in the release of the subfragment C3c.
T. Gaither   +2 more
semanticscholar   +1 more source

Progress in Molecular Imprinting—From Inhibition of Enzymatic Activity to Regulation of Cellular Pathways

open access: yesMedicinal Research Reviews, Volume 45, Issue 6, Page 1662-1678, November 2025.
ABSTRACT Molecular imprinting is a very powerful tool in life science. The research areas benefiting from a wide range of capabilities of molecularly imprinted polymeric nanoparticles (nanoMIPs) include sample preparation, extraction, sensing/detection, diagnostics, and drug delivery.
Milada Vodova   +2 more
wiley   +1 more source

Piceatannol, a Natural Polyphenol From Grape, Inhibits Helicobacter pylori Through Targeted Suppression of Its Secreted Urease

open access: yesFood Science &Nutrition, Volume 13, Issue 9, September 2025.
Piceatannol significantly inhibits the growth of Helicobacter pylori through targeted suppression of its secreted urease activity. The inhibition of piceatannol against H. pylori urease (HPU) and jack bean urease (JBU) was characterized in a slow‐binding, mixed‐type and slow‐binding, noncompetitive type, respectively.
Qiang Lu   +5 more
wiley   +1 more source

Detection of Sulfoquinovosidase Activity in Cell Lysates Using Activity‐Based Probes

open access: yesAngewandte Chemie, Volume 136, Issue 26, June 21, 2024.
The development of activity‐based probes targeting the active site nucleophile of glycoside hydrolase family 31 sulfoquinovosidases is described. The probes are shown to bind covalently by structural biology, mass spectrometry and Cy5 in‐gel fluorescence, are selective for sulfoquinovosidases in whole bacterial cell lysates, and are used to monitor ...
Zirui Li   +8 more
wiley   +2 more sources

Interaction of S-protein of complement with thrombin and antithrombin III during coagulation. Protection of thrombin by S-protein from antithrombin III inactivation.

open access: yesJournal of Biological Chemistry, 1986
S-protein, the inhibitor in plasma of the membrane attack complex of complement, appears to have a second function in coagulation. S-protein during clotting enters into a trimolecular complex with thrombin and antithrombin III (ATIII). Functionally, S-protein in the presence of low concentrations of heparin, protects thrombin from inactivation by ATIII.
E R, Podack, B, Dahlbäck, J H, Griffin
openaire   +2 more sources

Beyond the Binary: Controlling Natural Sex‐Change in Hermaphroditic Fishes

open access: yesReviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT Sex‐change in hermaphroditic fishes is a complex but natural biological phenomenon that has significant implications for aquaculture fingerling production, selective breeding, and grow‐out. Understanding the physiological, endocrinological, and molecular pathways underlying hermaphroditism in fishes offers unique opportunities to manipulate ...
Roni Chandra Mondal   +3 more
wiley   +1 more source

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