We report the synthesis and biochemical validation of a phosphatidyl inositol-3 phosphate (PI3P) immunogen. The inositol stereochemistry was secured through peptide-catalyzed asymmetric phosphorylation catalysis, and the subsequent incorporation of a cysteine residue was achieved by native chemical ligation (NCL). Conjugation of the PI3P hapten to maleimide-activated keyhole limpet hemocyanin (KLH) provided a PI3P immunogen, which was successfully used to generate selective PI3P antibodies. The incorporation of a sulfhydryl nucleophile into a phosphoinositide hapten demonstrates a general strategy to reliably access phosphoinositide immunogens.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3919123 | PMC |
| http://dx.doi.org/10.1021/ja410750a | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Linking new national active biomonitoring data with stream macroinvertebrate communities suggests large-scale effects of toxic contamination on freshwater ecosystems.
Sci Total Environ
January 2025
INRAE, UR RiverLy, Villeurbanne F-69625, France.
Since recent years, an increasingly large number of toxic chemicals enters watercourses threatening freshwater biodiversity. But ecological studies still poorly document the quantitative patterns linking exposure to complex mixture of toxic chemicals and species communities' integrity in the field. In this context, French monitoring authorities have recently deployed at a national scale in situ biotests using the feeding inhibition of the crustacean Gammarus as toxicity indicator.
View Article and Find Full Text PDFExperimental medicine study with stabilised native-like HIV-1 Env immunogens drives long-term antibody responses, but lacks neutralising breadth.
EBioMedicine
January 2025
Imperial College London, Department of Infectious Disease, UK. Electronic address:
Background: We report findings from an experimental medicine study of rationally designed prefusion stabilised native-like HIV envelope glycoprotein (Env) immunogens, representative of global circulating strains, delivered by sequential intramuscular injection.
Methods: Healthy adult volunteers were enrolled into one of five groups (A to E) each receiving a different schedule of one of two consensus Env immunogens (ConM SOSIP, ConS UFO, either unmodified or stabilised by chemical cross-linking, followed by a boost with two mosaic Env immunogens (Mos3.1 and Mos3.
Decellularized cartilage tissue bioink formulation for osteochondral graft development.
Biomed Mater
January 2025
Department of Orthopaedic Surgery, University of Connecticut, Chemical, Materials & Biomolecular Engineering MC-3711, ARB7-E7018, 263 Farmington Avenue, Farmington, CT 06032, USA, Storrs, Connecticut, 06269, UNITED STATES.
Articular cartilage and osteochondral defect repair and regeneration presents significant challenges to the field of tissue engineering (TE). TE and regenerative medicine strategies utilizing natural and synthetic-based engineered scaffolds have shown potential for repair, however, they face limitations in replicating the intricate native microenvironment and structure to achieve optimal regenerative capacity and functional recovery. Herein, we report the development of a cartilage extracellular matrix (ECM) as a printable biomaterial for tissue regeneration.
View Article and Find Full Text PDFEarly allelopathic input and later nutrient addition mediated by litter decomposition of invasive affect native plant and facilitate its invasion.
Front Plant Sci
December 2024
Jingjiang College, Institute of Enviroment and Ecology, School of Emergency Management, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, China.
Litter decomposition is essential for nutrient and chemical cycling in terrestrial ecosystems. Previous research on litter decomposition has often underestimated its impact on soil nutrient dynamics and allelopathy. To address this gap, we conducted a comprehensive study involving both field and greenhouse experiments to examine the decomposition and allelopathic effects of the invasive L.
View Article and Find Full Text PDFIsoelectric Focusing Fractionation Method for Signal Enhancement in Detection of Inactivated Biological Agents Using Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry.
Electrophoresis
January 2025
National Institute for Nuclear, Chemical and Biological Protection, Kamenna, Czech Republic.
Timely identification of highly pathogenic bacteria is crucial for efficient mitigation of the connected harmful health effects. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) of intact cells enables fast identification of the microorganisms based on their mass spectrometry protein fingerprint profiles. However, the MALDI-TOF MS examination must be preceded by a time-demanding cultivation of the native bacteria to isolate representative cell samples to obtain indicative fingerprints.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!