Immunostaining thin layer chromatograms TLC is a very sensitive detection technique of functionally active carbohydrate ligands of protein receptors. Carbohydrate structures are detected in glycolipids from complex mixtures of molecules extracted from the relevant target tissue. Proteins analyzed can be antibodies, chimeric Ig proteins, selectins, lectins, toxins, and other carbohydrate binding proteins. John L. Magnani~GlycoTech Corporation, Rockville, Maryland - [Read Immunostaining Thin Layer Chromatograms Of Glycolipids]
Ahmanson Center for Advanced Electron Microscopy and Imaging. Use of Semi-Thin Cryosections for Light Microscopy, Immunolabeling of Cryosections on Glass Slides, Problems with Autofluorescence. House Ear Institute - [Read Light Microscopy Techniques]
Lipoplex (cationic liposome-DNA complex) is formed via electrostatic interaction of anionic nucleic acids with cationic liposomes. A thin film of lipids is dried on the bottom of a glass tube and rehydrated in an aqueous solution. The resulting liposome suspension is passed through polycarbonate filters of desired pore size. This protocol also describes the preparation, physical properties, and biological activity of liposome-polycation-DNA (LPD) nanoparticles. - [Read Lipoplex and LPD Nanoparticles for In Vivo Gene Delivery Protocol]
In this protocol, extracts prepared from cells transfected with a chloramphenicol acetyltransferase (CAT) reporter plasmid are incubated with radiolabeled chloramphenicol. The acetylated products generated by the action of CAT are separated from the unmodified drug by thin-layer chromatography and quantitated by scraping the spots from the thin-layer plates and counting them by scintillation spectroscopy. - [Read Measurement of CAT in Extracts of Mammalian Cells Using Thin-layer Chromatography]
Gliotoxin is a metabolite of Aspergillus fumigatus that exhibits immunosuppressive activity against certain cells of the immune system. Secretion of gliotoxin during infection has been suggested as being a factor in the pathogenesis of aspergillosis. Gliotoxin secretion can be assayed in a number of ways by thin layer chromatography (TLC) high performance liquid chromatography (HPLC) or bioassay using the effect of gliotoxin on human cells1. - [Read Method for Assaying Gliotoxin Production in Aspergillus fumigatus Protocol]
This method of sample preparation produces a uniform layer of very small crystals on the mass spectrometer's sample stage that are mechanically well adhered to the substrate. It is a variant of the dried droplet method. PROWL - [Read Polycrystalline thin films Sample Preparation Protocol MALDI]
The DNA Ligation protocol described here contains the steps required to join together using ligase enzyme both plasmid DNA and insert DNA fragments in order to create a new plasmid. This new ligated plasmid can be transformed after into competent bacteria to produce DNA for mini, midi or maxi-prep isolation.
This protocol a protocol on how to generate transfected embryonic stem (ES) cell clones. The previous protocol in this series is the Protocol for Electroporation of ES cells. The next protocol in the series is the Protocol on Disaggregation, Expansion, and Freezing of Transfected ES Clones.
The protocol gives general considerations for the design of targeting vectors for transgenic mice. The protocol shares tips in the design of knock-out and knock-in vectors and some of their strategies for producing homologously recombined embryonic stem cells.