CORE--PEPTIDE SYNTHESIS AND ANALYSIS

描述：（申请人的描述）本共享的广泛目标 设施是使用Edman化学和肽进行肽测序 合成服务，以及氨基酸组成分析，容易 提供给癌症中心的研究人员分离的鉴定 蛋白质，无论是以前描述的还是以前未报道的蛋白质， 这是许多研究项目的重要组成部分，通常最好通过以下方式实现 N-末端测序。寡核苷酸探针的设计 生物学研究通常基于获得的有限肽序列 N-末端序列分析。有许多合成的需要， 肽：经常与蛋白质结合，用作特异性 免疫原 癌症中心？肽分析和合成序列的共享设施 150-250肽，每年合成90-120肽。70多 这些服务的%是为癌症中心的教师。目前的程度 该设施的使用率表明了这些设施的必要性和价值， 服务他们在帮助实现许多癌症的目标方面的重要性 中心的研究项目在本更新提案的其他地方进行了概述。 最近，获得肽的内部N-末端序列的方法 已经建立并制备了来自电印迹到PVDF上的蛋白质的 在这个设施里。此外，该机制的网页也得到加强 现在包括提供的服务和方法的完整描述， 就业。 该机制使用的方法已经成熟，不再受 到快速变化。与质谱仪持续相互作用 共享设施，以确保最适当和最有效的技术 在每一种实验情况下都是推荐的。此外，通常 实践利用MALDI TOF MS分析来验证 合成的肽，并选择最需要的肽进行测序 分析.可以预见，MS将越来越多地用于许多 排序任务。

Description: (Applicant's Description) The broad objective of this Shared Facility is to make peptide sequencing using Edman chemistry and peptide synthesis services, as well as amino acid composition analysis, readily available to Cancer Center researchers. Identification of an isolated protein, whether a previously described or previously unreported protein, is an essential part of many research projects and commonly is best achieved by N-terminal sequencing. The design of oligonucleotide probes for molecular biological studies is most often based upon limited peptide sequence obtained from N-terminal sequence analysis. There are many needs for synthesis of peptides: frequently to be conjugated to protein and used as specific immunogens. The Cancer Center?s Shared Facility for Peptide Analysis & Synthesis sequences 150-250 peptides and synthesizes 90-120 peptides annually. More than 70 percent of these services are for Cancer Center faculty. The present extent of usage of the Facility is indicative of the need for and value of these services. Their importance in helping to achieve the goals of many Cancer Center research projects is outlined elsewhere in this renewal proposal. Recently, methodologies for obtaining internal N-terminal sequence of peptides derived from proteins electroblotted to PVDF have been established and made available in this Facility. Also, the Facility's web page has been enhanced and now includes full descriptions of services offered and methodologies to be employed. The methodologies used by the Facility have matured and are no longer subject to rapid change. There is constant interaction with the Mass Spectrometry Shared Facility to ensure that the most appropriate and efficient techniques are recommended in each experimental situation. In addition, it is usual practice to utilize MALDI TOF MS analysis to verify the composition of peptides synthesized and to select the most desirable peptides for sequence analysis. It is predictable that MS will be used increasingly for many sequencing tasks.