Photoactivatable Glycopolymers for the Proteome-Wide Identification of Fucose-α(1-2)-Galactose Binding Proteins
摘要:
Although fucose-alpha(1-2)-galactose (Fuc alpha(1-2)Gal)-containing glycans have been implicated in cognitive processes such as learning and memory, their precise molecular mechanisms are poorly understood. Here we employed the use of multivalent glycopolymers to enable the first proteome-wide identification of weak affinity, low abundance Fuc alpha(1-2)Gal glycan-binding proteins (GBPs). Biotin-terminated glycopolymers containing photoactivatable cross-linking groups were designed to capture and enrich GBPs from rat brain lysates. Candidate proteins were tested for their ability to bind Fuc alpha(1-2)Gal, and the functional significance of the interaction was investigated for the synaptic vesicle protein SV2a using a knockout mouse system. The results suggest a role for SV2a-Fuc alpha(1-2)Gal interactions in SV2a trafficking and synaptic vesicle recycling. More broadly, our studies outline a general chemical approach for the systems-level discovery of novel GBPs.
An intracellular delivery vehicle of which surface is covered by a positive charge, an intracellular delivery complex in which a component or compound desired is loaded in the intracellular delivery vehicle, a temperature-sensitive probe comprising the intracellular delivery complex, and a method for measuring the intracellular temperature by the temperature-sensitive probe are disclosed. The intracellular delivery vehicle is useful on account of its capability of easily delivering the component or compound desired inside the cell without inhibiting cell proliferation.
Some embodiments described herein relate to new polymer coatings for surface functionalization and new processes for grafting pre-grafted DNA-copolymers to surface(s) of substrates for use in DNA sequencing and other diagnostic applications.
本文所述的一些实施方案涉及用于表面功能化的新型聚合物涂层,以及将预接枝 DNA 聚合物接枝到用于 DNA 测序和其他诊断应用的基质表面的新工艺。
Polymer engineered regenerating bioscavengers
申请人:Carnegie Mellon University
公开号:US10400232B2
公开(公告)日:2019-09-03
Embodiments of the invention provide at least one polymer covalently conjugated to an esterase. The at least one polymer includes a plurality of oxime functional groups.