GENE LIBRARY RESOURCE FOR SEA URCHIN S. PURPURATUS

该应用程序旨在支持向海胆发育分子和细胞生物学研究界分发包含大量cDNA文库的高密度排列过滤器（macroarrays），这些文库代表胚胎发生的每个阶段，几种单个细胞类型和各种成体组织。我们还将创建和分发带有社区特定兴趣基因的微阵列。宏阵列和微阵列都将由加州理工学院的Genetix机器人生成。作为pupupurntus Strongylocentrotus基因组计划的一部分，cDNA文库已经全部构建和排列。Macroarray过滤器已在试点规模上开始分发给选定的实验室，得到了非常热情的回应，正如应用程序中的信件所证明的那样。质量控制测试将定期进行，我们打算维护的服务将包括根据要求恢复和运送宏数组用户识别的任何克隆。排列好的文库将保存在我实验室的冷冻库中。另一个重要的目标是管理一个不断更新的、公开提供的网站数据库，在这个数据库中，所有利用这些数据库的实验室积累了关于阵列中克隆的身份的信息。所提出的工作的辅助研究和开发部分包括完善一种强大的新方法，用于在宏数组上进行微分减去杂交；在微阵列上测量杂交动力学，以建立不同实验条件下灵敏度的有用参数；用于代表海胆胚胎中任何给定调节状态的微观和宏观阵列的探针的开发并完成了定制的独特处理系统，用于使用复杂探针对宏阵列屏幕进行定量差异分析。

This application is to support the distribution to the sea urchin developmental molecular and cell biology research community of high density arrayed filters (macroarrays) containing large cDNA libraries, that represent every stage of embryogenesis, several individual cell types, and various adult tissues. We will also create and distribute microarrays bearing genes of specific interest to the community. Both macro- and microarrays will be generated using the Genetix robot at Caltech. The cDNA libraries have already all been constructed and arrayed as part of the Strongylocentrotus puipurntus Genome Project. Macroarray filter distribution to selected laboratories has been initiated on a pilot scale, with extremely enthusiastic responses, as attested by letters within the Application. Quality control testing will be routinely carried out, and the service we intend to maintain will include recovery and shipping of any clones identified by users of the macroarrays on request. The arrayed libraries wffl be maintained in freezer banks in my laboratory. An important additional objective is the management of a continuously updated, publicly available web site data base in which information as to the identity of clones in the arrays is accumulated from all laboratories utilizing them. The ancillary research and development component of the proposed work includes the perfection of a powerful new methodology for differential subtractive hybridization on the macroarrays; measurement of hybridization kinetics on microarrays to establish useful parameters of sensitivity under diverse experimental situations; development of probes for use on both micro-and macroarrays that represent any given regulatory state in the sea urchin embryo; and completion of a custom made unique processing system for quantitative differential analysis of macroarray screens using complex probes.