STRUCTURE AND EVOLUTION OF THE PLANT PHOTORECEPTOR PHYTOCHROME

植物光感受器光色素的结构和进化

• 批准号: 7956079
• 负责人: CLARK LAGARIAS
• 金额: $ 0.08万
• 依托单位: CARNEGIE-MELLON UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2010-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7956079
• 关键词: Angiosperms; Animals; Bacteria; Bilin; Biomedical Research; Computer Retrieval of Information on Scientific Projects Database; Environment; Evolution; Funding; Grant; High Performance Computing; Institution; Learning; Life; Light; Lyase; Organism; Photoreceptors; Photosynthesis; Phytochrome; Plant Photoreceptors; Plants; Protein Sequence Analysis; Proteins; Research; Research Personnel; Resources; Source; Structure; Sunlight; United States National Institutes of Health; Vascular Plant; comparative; insight; neuromuscular system; protein-histidine kinase

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The ability to adjust to changes in the external light environment is especially important to plant survival because, unlike animals, plants depend on sunlight for photosynthesis and they do not have a neuromuscular system which allows them to move to a more optimum light environment. Plants therefore possess the unique light-sensing photoreceptor molecule phytochrome which enables them to perceive the frequent fluctuations of intensity, direction and spectral quality of light in their environment. Phytochrome is found in nearly all photoautrophic organisms from cyanobacteia to higher plants. Our studies seek to provide new insight into the structure, function and evolution of the phytochrome photoreceptor through comparative analysis of the phytochrome-related proteins from flowering plants, cryptogams and bacteria. Through protein sequence analyses, we hope to learn of the origins of both photosensory and regulatory domains of the phytochrome molecule. These include the GAF/bilin lyase, PAS-related and histidine kinase-related domains found in regulatory molecules found in archae, eukaryae to eukaryae kingdoms of life.

该副本是利用众多研究子项目之一 由NIH/NCRR资助的中心赠款提供的资源。子弹和 调查员（PI）可能已经从其他NIH来源获得了主要资金， 因此，可以在其他清晰的条目中表示。列出的机构是 对于中心，这不一定是调查员的机构。 适应外部光明环境变化的能力对于植物生存尤为重要，因为与动物不同，植物依靠光合作用的阳光，并且它们没有神经肌肉系统，使它们可以移动到更最佳的轻度环境。因此，植物具有独特的光感光光学分子植物色素，使它们能够感知其环境中光的强度，方向和光谱质量的频繁波动。植物色素几乎在从氰基植物到较高植物的几乎所有光养生生物中发现。我们的研究旨在通过比较开花植物，加密果糖和细菌的植物色素相关蛋白的比较分析，以对植物色素感受器的结构，功能和演变提供新的见解。通过蛋白质序列分析，我们希望了解植物色素分子的光感和调节域的起源。其中包括GAF/BILIN裂解酶，与PAS相关的和组氨酸激酶相关的结构域，在Archae中发现的调节分子，真核生物至真核生物的生命王国。