氨基酸基质的特异性和组织表达形状的九个CYP79A编码基因在二色
Donka Teneva Koleva1, Mengqi Liu1, Barbara Dusak1
1Plant Biochemistry Laboratory, Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg C, Copenhagen, Denmark.
Physiologia plantarum
|January 3, 2025
概括
这项研究描述了的特征.
科学领域:
- 植物生物化学 植物生物化学
- 基因组学就是基因组学.
- 代谢学 代谢学 代谢学
背景情况:
- 细胞染色体P450s (CYP79家族) 将氨基酸转化为氧化物.
- 红糖双色素具有9个CYP79A基因,基底特异性不明.
研究的目的:
- 为了确定未经表征的CYP79A酶的基质特异性.
- 分析各种组织中子CYP79A基因的表达模式.
主要方法:
- 对CYP79A基因及其基质识别位点 (SRSs) 的序列比较.
- 在Nicotiana benthamiana中暂时表达以确定酶活性.
- 对转录组进行分析,以评估基因表达水平和组织特异性.
主要成果:
- CYP79A61使用氨酸; CYP79A91,CYP79A93和CYP79A95使用氨酸/单氨酸; CYP79A93也接受氨酸; CYP79A94使用单氨酸.
- CYP79A1显示出最高的表达,对于杜林合成至关重要.
- 特定的CYP79A基因在中表现出不同的组织特异性表达模式.
结论:
- 这项研究阐明了子CYP79A基因的基底特异性和表达特征.
- 研究结果提供了关于氧化物产生酶在不同组织中的作用的见解.
- 表达数据表明,中的各种CYP79A酶具有组织特异性功能.
相关概念视频
Allosteric Proteins-ATCase
5.6K
Binding sites linkages can regulate a protein's function. For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
5.6K
Ligand Binding and Linkage
4.7K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.7K


