GENE LIBRARY RESOURCE FOR SEA URCHIN S. PURPURATUS

该应用程序是支持分布到海胆发育分子和细胞生物学研究社区的高密度阵列过滤器（宏阵列）包含大的cDNA文库，代表胚胎发生的每个阶段，几个单独的细胞类型，和各种成人组织。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使用加州理工学院的Genetix机器人生成。cDNA文库已经全部构建和排列，作为Strongylocentrotus puipurntus基因组计划的一部分。已开始向选定的实验室分发宏阵列过滤器，这是一个试点规模，反应非常热烈，申请书中的信件证明了这一点。质量控制测试将定期进行，我们打算保持的服务将包括恢复和运输的任何克隆的用户确定的宏阵列的要求。阵列库将保存在我实验室的冷冻库中。一个重要的附加目标是管理一个不断更新的、可公开获得的网站数据库，其中关于阵列中克隆的身份的信息是从使用它们的所有实验室积累的。拟议工作的辅助研究和发展部分包括完善一种强有力的新方法，用于在宏阵列上进行差减杂交;测量微阵列上的杂交动力学，以确定在各种实验情况下的有用的灵敏度参数;开发用于微阵列和宏阵列的探针，代表海胆胚胎中任何特定的调节状态;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筛选进行定量差异分析。

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.