The First Direct Evaluation of the Two-Active Site Mechanism for Chitin Synthase
作者:Adam R. Yeager、Nathaniel S. Finney
DOI:10.1021/jo035100c
日期:2004.2.1
Chitin synthase polymerizes UDP-GlcNAc to form chitin (poly-beta(1,4)-G1cNAc) and is essential for fungal cell wall biosynthesis. The alternating orientation of the GlcNAc residues within the chitin chain has led to the proposal that chitin synthase possesses two active sites. We report the results of the first direct test of this possibility. Two simple uridine-derived dimeric inhibitors are shown to exhibit 10-fold greater inhibition than a monomeric control, consistent with the presence of two active sites. This observation has important implications for the development of antifungal agents, as well as the understanding of polymerizing glycosyltransferases.
METHODS AND COMPOSITIONS FOR REDUCING OXALATE CONCENTRATIONS
申请人:OxThera, Inc.,
公开号:EP1755655A2
公开(公告)日:2007-02-28
COMPOSITION AND KITS FOR PSEUDOPLASTIC MICROGEL MATRICES
申请人:Rochal Industries, LLC
公开号:EP3283057B1
公开(公告)日:2021-07-28
Process for the preparation of activated polyethylene glycols
申请人:Faure Marie-Pierre
公开号:US20080139854A1
公开(公告)日:2008-06-12
A process for preparing activated polyethylene glycols is disclosed. In some embodiments, the process includes reacting a molten polyethylene glycol with an activator. In other embodiments, the process includes reacting a polyethylene glycol with an activator in the absence of a solvent. The process may be carried out in an inert gas atmosphere, at a temperature at least 10° C. above the melting point of polyethylene glycol, and/or with the activator provided in molar excess of the polyethylene glycol. The invention further provides activated polyethylene glycols produced by this process and their use in a variety of pharmaceutical, medical, cosmetic and chemical applications.
Methods and Compositions for Reducing Oxalate Concentrations
申请人:Sidhu Harmeet
公开号:US20080317810A1
公开(公告)日:2008-12-25
The present invention provides methods and compositions for oxalate degradation. The present invention comprises devices comprising oxalate-reducing enzymes. The enzymes may be directly attached or incorporated in coatings on the devices. Such devices are useful in treatments where oxalate or oxalic acid deposits interfere. Methods for making and using such medical devices are also included.