proteolytic

简明释义

英[ˌprəʊtɪəˈlɪtɪk]美[ˌprotiəˈlɪtɪk]

adj. [生化] 蛋白水解的；解蛋白的

n. 解朊作用

英英释义

单词用法

同义词

反义词

例句

1.People interested in the above article What Are Systemic Proteolytic Enzymes and How Can You Benefit from Them?

“感兴趣的人以上文章”什么是全身性蛋白水解酶和你如何从中获益？

2.The possible role of the proteolytic processing of the N-protein in the regulatory mechanism of both viral replication and transcription processes was discussed.

本文还提出了N蛋白的酶加工现象在弹状病毒的复制和转录的调控过程中可能起重要作用的设想。

3.Increasing evidence has identified a correlation between this protein and the proteasome, the cellular proteolytic machinery, in particular the ubiquitin-proteasome system.

越来越多的研究表明了这种蛋白与蛋白酶体——细胞内蛋白酶机械，特别是泛素-蛋白酶体的相关性。

4.Rice protein was hydrolyzed by proteolytic enzymes for preparing rice peptide.

该文利用蛋白酶水解大米蛋白制备得到大米肽。

5.The composite multienzyme comprises various proteolytic enzymes, nuclease, lipoidase, muramidase, phytase, amylase, superoxide dismutase, catalase, cellulose, and the like.

该复合多酶包含：多种蛋白酶、核酸酶、脂酶、溶菌酶、植酸酶、淀粉酶、超氧化物歧化酶、过氧化氢酶、纤维素酶等。

6.On neutral or alkaline condition, only in sciatic nerve the activity of proteolytic enzyme is strong, others are quite weak.

在中性和碱性条件下，坐骨神经中蛋白水解酶活性较强，其余部分活性微弱。

7.Matrix metalloproteinases (MMPs) are a large family of proteolytic enzymes, which play important roles in degradation of extracellular matrix dependent upon zinc ion.

基质金属蛋白酶是一族依赖锌离子而降解各种细胞外基质的蛋白酶。

8.The proteolytic phenomenon in enamel caries has been investigated from three directions.

摘要作者从三个方面探讨牙釉质龋病变中的蛋白溶解现象。

9.In the laboratory, researchers often use proteolytic 蛋白水解的 enzymes to study protein structure and function.

在实验室中，研究人员常常使用蛋白水解的酶来研究蛋白质的结构和功能。

10.Some fruits, like pineapple and papaya, contain natural proteolytic 蛋白水解的 enzymes that can tenderize meat.

一些水果，如菠萝和木瓜，含有天然的蛋白水解的酶，可以使肉变嫩。

11.Certain bacteria produce proteolytic 蛋白水解的 enzymes that can degrade proteins in food, affecting its quality.

某些细菌产生蛋白水解的酶，可以降解食物中的蛋白质，从而影响其质量。

12.The enzyme trypsin is a well-known proteolytic 蛋白水解的 enzyme that breaks down proteins in the digestive system.

胰蛋白酶是一种著名的蛋白水解的酶，它在消化系统中分解蛋白质。

13.The proteolytic 蛋白水解的 activity of the enzyme is essential for cellular processes such as apoptosis.

该酶的蛋白水解的活性对细胞过程如凋亡至关重要。

作文

Proteins are essential macromolecules that play a crucial role in various biological processes. They are involved in nearly every cell function, acting as enzymes, hormones, and structural components. One of the key processes in protein metabolism is the breakdown of proteins into smaller peptides and amino acids, a process known as proteolysis. The enzymes that facilitate this breakdown are called proteolytic enzymes, or proteases. Understanding how these proteolytic enzymes function is vital for numerous fields, including biochemistry, medicine, and nutrition.The term proteolytic refers to the ability of certain enzymes to hydrolyze the peptide bonds in proteins. This action results in the degradation of proteins into smaller fragments, ultimately leading to the release of individual amino acids. These amino acids can then be utilized by the body for various purposes, such as the synthesis of new proteins, energy production, or serving as precursors for other biomolecules. The balance between protein synthesis and degradation is critical for maintaining cellular homeostasis and overall health.There are several classes of proteolytic enzymes, each with distinct mechanisms and functions. For instance, serine proteases utilize a serine residue in their active site to catalyze the cleavage of peptide bonds. Cysteine proteases, on the other hand, rely on a cysteine residue for their activity. Aspartic and metalloproteases represent other categories of proteolytic enzymes, each playing specific roles in protein digestion and turnover.In the human digestive system, proteolytic enzymes are critical for breaking down dietary proteins into absorbable units. For example, pepsin, which is secreted in the stomach, initiates protein digestion by cleaving peptide bonds in the acidic environment of the stomach. This process continues in the small intestine, where other proteolytic enzymes, such as trypsin and chymotrypsin, further degrade proteins into smaller peptides and amino acids. The efficiency of these enzymes can significantly impact nutrient absorption and overall health.Moreover, proteolytic enzymes are not only important in digestion but also play significant roles in various physiological processes, including blood coagulation, immune response, and apoptosis (programmed cell death). Dysregulation of proteolytic activity has been implicated in numerous diseases, including cancer, neurodegenerative disorders, and inflammatory conditions. Therefore, understanding the mechanisms of proteolytic enzymes can provide insights into potential therapeutic targets for these diseases.In conclusion, proteolytic enzymes are indispensable for protein metabolism, digestion, and numerous physiological functions. Their ability to break down proteins into amino acids is vital for maintaining the body's protein balance and supporting various metabolic processes. Continued research into the roles and regulation of proteolytic enzymes will undoubtedly enhance our understanding of health and disease, paving the way for novel therapeutic approaches. As we delve deeper into the world of biochemistry, the significance of proteolytic enzymes remains a fascinating area of study that holds great promise for future advancements in medicine and nutrition.

蛋白质是重要的大分子，在各种生物过程中发挥着关键作用。它们几乎参与每一个细胞功能，作为酶、激素和结构成分。蛋白质代谢中的一个关键过程是将蛋白质分解为较小的肽和氨基酸，这一过程被称为蛋白水解。促进这一分解的酶称为蛋白水解酶，或称为蛋白酶。理解这些蛋白水解酶的功能对于生物化学、医学和营养等多个领域至关重要。术语蛋白水解指的是某些酶水解蛋白质中肽键的能力。这一作用导致蛋白质降解为较小的片段，最终释放出单个氨基酸。这些氨基酸随后可以被身体用于各种目的，例如合成新蛋白质、能量生产或作为其他生物分子的前体。蛋白质合成与降解之间的平衡对维持细胞内稳态和整体健康至关重要。有几类蛋白水解酶，每种酶具有不同的机制和功能。例如，丝氨酸蛋白酶利用其活性位点中的丝氨酸残基催化肽键的裂解。半胱氨酸蛋白酶则依赖于半胱氨酸残基进行其活性。天冬氨酸和金属蛋白酶代表了其他类别的蛋白水解酶，各自在蛋白质消化和周转中发挥特定作用。在人体消化系统中，蛋白水解酶对将膳食蛋白质分解为可吸收单位至关重要。例如，胃中分泌的胃蛋白酶在胃的酸性环境中启动蛋白质消化，通过裂解肽键来实现。这一过程在小肠中继续进行，其他蛋白水解酶，如胰蛋白酶和糜蛋白酶，进一步将蛋白质降解为较小的肽和氨基酸。这些酶的效率会显著影响营养物质的吸收和整体健康。此外，蛋白水解酶不仅在消化中重要，还在多种生理过程中发挥重要作用，包括血液凝固、免疫反应和凋亡（程序性细胞死亡）。蛋白水解活性的失调与多种疾病相关，包括癌症、神经退行性疾病和炎症性疾病。因此，理解蛋白水解酶的机制可以为这些疾病提供潜在的治疗靶点。总之，蛋白水解酶对蛋白质代谢、消化和多种生理功能不可或缺。它们将蛋白质分解为氨基酸的能力对维持身体的蛋白质平衡和支持各种代谢过程至关重要。对蛋白水解酶的作用和调控的持续研究无疑将增强我们对健康和疾病的理解，为新的治疗方法铺平道路。当我们深入探索生物化学的世界时，蛋白水解酶的重要性仍然是一个迷人的研究领域，蕴藏着未来医学和营养进步的巨大潜力。