Several methods for the preparation of long-chain vicinal diketones are examined. The acyloincondensation, followed by oxidation, provides an excellent route to symmetrical compounds but is not satisfactory for unsymmetrical diketones. The latter are prepared (i) from dialkylacetylenes by semihydrogenation, hydroxylation, and oxidation with aqueous N-bromosuccinimide; and (ii) from an α-acetoxy-acid
Novel Xylene-Linked Maltoside Amphiphiles (XMAs) for Membrane Protein Stabilisation
作者:Kyung Ho Cho、Yang Du、Nicola J. Scull、Parameswaran Hariharan、Kamil Gotfryd、Claus J. Loland、Lan Guan、Bernadette Byrne、Brian K. Kobilka、Pil Seok Chae
DOI:10.1002/chem.201501083
日期:2015.7.6
aggregation. In this study, a novel class of maltoside‐bearing amphiphiles, with a xylene linker in the central region, designated xylene‐linked maltosideamphiphiles (XMAs) was developed. When these novel agents were evaluated with a number of membraneproteins, it was found that XMA‐4 and XMA‐5 have particularly favourable efficacy with respect to membraneproteinstabilisation, indicating that these agents
NOVEL XYLENE-BASED AMPHIPHILIC COMPOUND AND USE THEREOF
申请人:Industry-University Cooperation Foundation Hanyang University Erica Campus
公开号:US20180273570A1
公开(公告)日:2018-09-27
The present invention relates to a xylene-based amphiphilic compound, a method for preparing the same, and a method for extracting, solubilizing, stabilizing or crystallizing a membrane protein using the same. By using the xylene-based compound according to the present invention, a membrane protein may be stably stored in an aqueous solution for a long time, and may be applied in functional and structural analyses. The structural and functional analysis of the membrane protein is one of the fields of highest interest in biology and chemistry, and the xylene-based compound according to the present invention can be applied in research on protein structure that is closely related to development of a new drug.
Mesitylene-Cored Glucoside Amphiphiles (MGAs) for Membrane Protein Studies: Importance of Alkyl Chain Density in Detergent Efficacy
作者:Kyung Ho Cho、Orquidea Ribeiro、Yang Du、Elena Tikhonova、Jonas S. Mortensen、Kelsey Markham、Parameswaran Hariharan、Claus J. Loland、Lan Guan、Brian K. Kobilka、Bernadette Byrne、Pil Seok Chae
DOI:10.1002/chem.201603338
日期:2016.12.23
Detergents serve as useful tools for membraneprotein structural and functional studies. Their amphipathic nature allows detergents to associate with the hydrophobic regions of membraneproteins whilst maintaining the proteins in aqueous solution. However, widely used conventional detergents are limited in their ability to maintain the structural integrity of membraneproteins and thus there are major efforts
The present invention concerns novel synthetic blocking reagents for the reduction of non-specific bindings in solid phase assays that rely on biological and specific recognition, e.g., in enzyme-linked immunosorbent assays (ELISAs). The invention provides the use of compounds as blocking reagents as well as kits comprising these compounds. The compounds comprise one or more poly(ethylene glycol) moieties, one or more alkyl- or aminoalkyl groups and another unit bridging the aforementioned groups, wherein the compound comprises at least one amino group.