Leibniz University Hannover 2 articles published in JoVE Immunology and Infection Detection of Neutralization-sensitive Epitopes in Antigens Displayed on Virus-Like Particle (VLP)-Based Vaccines Using a Capture Assay Jamila Franca Rosengarten*1,2, Stefanie Schatz*1,2, Jörn Stitz1 1Research Group Pharmaceutical Biotechnology, TH Köln - University of Applied Sciences, 2Institute of Technical Chemistry, Leibniz University Hannover Here, we present a protocol to detect neutralization epitopes on antigen-displaying virus-like particles (VLPs). Immunoprecipitation of the human immunodeficiency virus (HIV)-derived VLPs is performed using envelope glycoproteins-specific monoclonal antibodies coupled to protein G-conjugated magnetic beads. Captured VLPs are subsequently subjected to SDS-PAGE and Western blot-analysis employing viral core protein Gag-specific antibodies. Biochemistry Plant Sample Preparation for Nucleoside/Nucleotide Content Measurement with An HPLC-MS/MS Changhua Zhu*1, Xiaoye Liu*2, Wenlei Wang1, Xiaoguang Chen3, Shangyu Gao1, Meng Qian1, Na Yang1, Yifeng Xu1, Mingjia Chen1 1College of Life Sciences, Nanjing Agricultural University, 2Department of Criminal Science and Technology, Nanjing Forest Police College, 3Department of Molecular Nutrition and Biochemistry of Plants, Institute of Plant Nutrition, Leibniz University Hannover A precise and reproducible method for in vivo nucleosides/nucleotides quantification in plants is described here. This method employs an HPLC-MS/MS.
