通过综合结构和基于序列的分析来识别新型的元基因组性脂酶
Nongluck Jaito1, Nattha Kaewsawat1, Kamollak Sangawthong1
1Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand.
PeerJ
|February 9, 2026
概括
研究人员发现了新的脂质酶,使用了结构和基因组数据的基于序列的选. 这种方法有效地识别出具有工业应用独特特性的新生物催化剂.
科学领域:
- 生物催化和酶工程 生物催化和酶工程
- 大基因组学和生物信息学
- 绿色化学与可持续技术
背景情况:
- 酶是可持续工业过程的关键生物催化剂.
- 发现新型酶是扩大它们在绿色技术中的应用的关键.
- 传统的酶发现方法往往错过了序列相似性较低的酶.
研究的目的:
- 从大规模的元基因组数据库中识别具有独特特性的新型脂酶.
- 在酶发现中克服仅序列方法的局限性.
- 为了证明综合结构和基于序列的查方法的有效性.
主要方法:
- 使用Foldseek进行结构同质性搜索,对比一个元基因组数据库.
- 与公开的蛋白质数据库相比,应用了严格的序列相似性过.
- 选择并经过实验验证的候选脂酶,随后进行生物化学表征.
主要成果:
- 确定了711种假定的新型脂质酶.
- 验证了三个候选物体表现出脂酶活性.
- 具有特征的酶表现出热稳定性 (最佳50-55°C) 和性活性 (最佳pH为8.0-9.0).
结论:
- 结合结构和基于序列的方法对于新型酶发现具有强大作用.
- 已识别的脂化物具有适用于洗剂,生物修复和工业生物催化剂的特性.
- 方法上的创新增强了从元基因组资源的未来酶发现.
相关概念视频
Cis-regulatory Sequences
11.9K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
11.9K
Integration by Parts: Indefinite Integrals
211
Integration by parts is a fundamental technique in calculus for evaluating integrals involving the product of two functions. It is particularly useful when direct integration is not feasible. The method is based on the product rule for differentiation, which states that the derivative of a product equals the derivative of the first function times the second, plus the first function times the derivative of the second. By integrating this identity and rearranging terms, the integration by parts...
211
Integration by Parts: Definite Integrals
91
Definite integrals involving the product of two functions over a fixed interval can be evaluated using integration by parts. This method rewrites the integral as the difference of a product evaluated at the endpoints and a remaining definite integral that is often simpler to compute.A representative example is the definite integral of the inverse tangent function. Since there is no direct integration formula for arctan x, the integrand is rewritten as a product of arctan x and the...
91
Protein and Protein Structure
88.4K
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
A protein's shape is critical to its function. For example, an enzyme...
88.4K
Sequences
283
Sequences are fundamental mathematical objects consisting of ordered lists of numbers that follow a specific rule or pattern. Sequences are critical in various mathematical concepts, including calculus, series, and number theory. They can model real-world phenomena such as population growth, financial investments, and physical processes like the diminishing height of a bouncing ball.Each number in a sequence is referred to as a term. Typically, the terms are denoted as a1, a2, a3,…, where...
283
Sanger Sequencing
774.9K
DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
774.9K


