Protein Design, Expression and Purification Core

摘要：蛋白质设计、表达和纯化核心 这一建议代表了一个独特的学术努力，结合结构生物学，分子真菌学， 脊椎动物病理学的目标信号转导途径，使病原真菌生存， 人类结构性方法对拟议目标的成功至关重要，需要 生产大量纯的和均质的蛋白质。这些蛋白质或蛋白质 复合物将难以表达，并且那些确实表达的复合物也可能难以在可溶性微球中产生。 form.因此，可能需要测试多个表达构建体以产生这些可溶性表达载体。 和纯的靶蛋白。如果这些活动能更好地服务于本赠款申请的具体目标， 由于消除了多余的工作， 为所有项目带来技术科学家，他们的唯一目的是最大限度地提高生物化学活性物质的产量。 proteins.因此，蛋白质设计、表达和纯化核心有三个总体目标 （PDEP）：特异性目的1产生靶蛋白和复合物的多表达构建体。 基因组DNA，或人工产生的基因，将被插入到多个商业载体中 从而提供高的成功可能性。特定目的2检测靶构建体蛋白表达水平 和溶解度。一旦克隆，PDEP将使用96孔板优化可溶性蛋白的过表达 格式和多种表达系统。具体目标3测试和优化表达构建体， 进行最终纯化。PDEP将通过亲和树脂纯化蛋白质， 用于NMR研究的蛋白质。这些蛋白质将被分配到核心成员， 问题研究这些研究的最关键目标是高分辨率结构测定和 随后设计特异性抑制剂。

ABSTRACT: Protein Design, Expression, and Purification Core This proposal represents a unique academic effort that weds structural biology, molecular mycology, and vertebrate pathology to target the signal transduction pathways that allow pathogenic fungi to survive in humans. The structural approaches, which are essential to the success of the proposed Aims, will require the production of large quantities of pure and homogeneous proteins. Many of these proteins or protein complexes will be difficult to express and those that do express may also be difficult to produce in a soluble form. Thus, it is likely that multiple expression constructs will need to be tested for production of these soluble and pure target proteins. The Specific Aims of this grant application are much better served if these activities are centralized as cost effectiveness is greatly enhanced by the removal of redundant efforts and the ability to bring to all projects technical scientists whose sole purpose is to maximize the output of biochemically active proteins. Thus, there are three general aims of goals of the Protein Design, Expression and Purification Core (PDEP): Specific Aim 1 Generation of multiple expression constructs for target proteins and complexes. Genomic DNA, or artificially produced genes, will be inserted into multiple commercially available vectors providing a high likelihood of success. Specific Aim 2 Testing for target constructs protein expression levels and solubility. Once cloned the PDEP will optimize the overexpression of soluble proteins using a 96 well plate format and multiple expression systems. Specific Aim 3 Testing and optimizing expression constructs and performing final purification. The PDEP will purify proteins through affinity resins and help isotopically label proteins for NMR studies. The proteins will be distributed to core members for biochemical and structural studies. The most crucial goals of these studies will be high-resolution structure determination and the subsequent design of specific inhibitors.