通过传感器,受体和序列数据探索苦的分子空间
Alexandra Steuer1,2, Laura Sophie Eckrich3,4, Silvia Schaefer1,2
1TUM Graduate School, TUM School of Life Sciences, Technical University of Munich, Alte Akademie 8, Freising 85354, Germany.
Journal of agricultural and food chemistry
|July 23, 2025
概括
研究人员使用Bitter Peptide Space (BPS) -1000数据集分析了苦,确定了影响苦味的关键化学特性,如疏水性和尺寸. 这增强了对苦特性的理解.
科学领域:
- 生物化学 生物化学
- 感官科学 感官科学
- 计算化学计算化学
背景情况:
- 苦味感知是复杂的,涉及与苦味受体 (TAS2Rs) 相互作用的.
- 了解酸中苦味的化学驱动因素对于食品科学和药物开发至关重要.
研究的目的:
- 使用精心策划的数据集,探索苦的化学空间.
- 为了识别导致酸性的序列和基于结构的特征.
- 为表示正规和改性提供标准化的符号.
主要方法:
- 策划了一个数据集 (BPS-1000) 实验验证的苦和非苦.
- 综合感官数据,苦味值 (BTTs) 和TAS2R活动.
- 为体表示生成了HELM和BILN标记.
- 进行了基于序列和基于结构的分析.
主要成果:
- 突出了疏水性,分子大小和氨基酸组成在区分苦和非苦的作用.
- 在这些特征中观察到的不同是正规和改性之间的差异.
- 建立了用于苦研究的综合资源.
结论:
- 疏水性,分子大小和氨基酸成分是酸苦度的关键决定因素.
- 改性具有独特的特征,影响其味道特征.
- BPS-1000数据集和符号促进了对苦化学空间的理解.
相关概念视频
The Physiology of Taste
4.3K
The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
4.3K
Peptide Identification Using Tandem Mass Spectrometry
6.8K
Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
6.8K
Gustation
48.9K
Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
48.9K
Taste Buds and Receptors
2.8K
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
2.8K


