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Biosynthesis of deazapurine-containing metabolites

含脱氮嘌呤代谢物的生物合成

基本信息

批准号：
7008608
负责人：
VAHE BANDARIAN
金额：
$ 25.9万
依托单位：
UNIVERSITY OF ARIZONA
依托单位国家：
美国
项目类别：
财政年份：
2005
资助国家：
美国
起止时间：
2005-01-17 至 2009-12-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/7008608
关键词：
Escherichia coli Streptomyces aminohydrolases azapurine bacterial genetics bacterial proteins functional /structural genomics genetic library isozymes microorganism culture microorganism metabolism open reading frames purine /pyrimidine metabolism purine analog small molecule

项目摘要

DESCRIPTION (provided by applicant): All organisms produce a host of compounds that are generally not required in primary metabolic processes, but play important regulatory functions. These secondary metabolites have been exploited by every civilization to enhance life and cure human diseases. We know these as hormones, antibiotics, antitumor agents, and antivirals. Since these metabolites can harm cells if produced in excess, or if present when a need for them does not exist, their production is often strictly regulated. An understanding of how cells synthesize and regulate the production of secondary metabolites is essential if one is to be able to exploit them as human therapeutic agents. Deazapurines are secondary metabolites that are derived from purines and little is known about how they are synthesized in the cell. This proposal outlines studies on the biosynthesis of deazapurine-containing secondary metabolites by Streptomyces. Our goal is to bring to fore the tools of genomics, molecular biology and enzymology to form the framework of how these metabolites are synthesized, and to begin the process of exploring the chemistry that underlies the biosynthesis of these molecules.

描述（申请人提供）：所有生物体都会产生许多化合物，这些化合物通常在初级代谢过程中不需要，但发挥着重要的调节功能。这些次级代谢产物被每一个文明利用来提高生命和治疗人类疾病。我们知道这些是激素、抗生素、抗肿瘤剂和抗病毒药。由于这些代谢物如果过量产生，或者如果在不存在对它们的需求时存在，则会损害细胞，因此它们的产生通常受到严格管制。了解细胞如何合成和调节次级代谢产物的产生是必不可少的，如果一个人能够利用它们作为人类治疗剂。脱氮嘌呤是嘌呤衍生的次级代谢产物，对它们在细胞中如何合成知之甚少。该建议概述了链霉菌生物合成含脱氮嘌呤的次级代谢产物的研究。我们的目标是将基因组学、分子生物学和酶学的工具放在前面，以形成这些代谢物如何合成的框架，并开始探索这些分子生物合成的化学基础的过程。