proteases

简明释义

英[prəʊˈtiː.eɪz]美[proʊˈtiː.eɪz]

n. [生化]蛋白酶（protease 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The main proteases present in wheat leaves and responsible for the increase in activity during osmotic stress are thiol proteases.

小麦叶片的蛋白水解酶主要是硫基蛋白水解酶类，且在渗透胁迫下，其活性增强。

2.The major proteases which the pancreas secretes are trypsinogen and chymotrypsinogen.

胰腺分泌的主要蛋白酶是胰蛋白酶原和胰凝乳蛋白酶原。

3.Secreted proteases are thought as potential virulent factors of Tricophyton rubrum.

分泌性蛋白酶是红色毛癣菌致病的潜在毒力因子。

4.Alkaline proteases are a physiologically and commercially important group of enzymes.

碱性蛋白酶是一类在生理上、商业上非常重要的酶类。

5.Snake venom thrombin-like enzymes belong to the fibrinogenolytic enzyme family and are serine proteases.

蛇毒类凝血酶属于纤维蛋白原裂解酶，是一种丝氨酸蛋白酶。

6.These three proteases are similar in substrate and inhibitor specificity.

这三种蛋白酶具有相似的底物特异性和抑制剂特性。

7.The pharmaceutical industry utilizes proteases (蛋白酶) for drug development and production.

制药行业利用蛋白酶（蛋白酶）进行药物开发和生产。

8.In the digestive system, enzymes like proteases (蛋白酶) break down proteins into smaller peptides and amino acids.

在消化系统中，像蛋白酶（蛋白酶）这样的酶将蛋白质分解成更小的肽和氨基酸。

9.Some fruits, like pineapple and papaya, contain natural proteases (蛋白酶) that can tenderize meat.

一些水果，如菠萝和木瓜，含有天然的蛋白酶（蛋白酶），可以嫩化肉类。

10.Certain proteases (蛋白酶) are used in laundry detergents to help remove protein-based stains.

某些蛋白酶（蛋白酶）被用于洗衣粉中，以帮助去除基于蛋白质的污渍。

11.Research shows that proteases (蛋白酶) play a crucial role in cell signaling.

研究表明，蛋白酶（蛋白酶）在细胞信号传导中起着至关重要的作用。

作文

Proteins are essential macromolecules that play a crucial role in various biological processes. One of the key types of enzymes involved in protein metabolism is known as proteases, which are enzymes that break down proteins into smaller peptides or amino acids. This process is vital for many bodily functions, including digestion, cell signaling, and the recycling of cellular components. Without proteases (蛋白酶), our bodies would struggle to maintain proper protein homeostasis and function efficiently.The importance of proteases (蛋白酶) can be observed in the digestive system, where they help break down dietary proteins into absorbable units. For instance, in the stomach, the enzyme pepsin, which is a type of protease (蛋白酶), begins the digestion of proteins by cleaving them into smaller peptides. This process continues in the small intestine, where additional proteases (蛋白酶) such as trypsin and chymotrypsin further digest these peptides into even smaller fragments, ultimately leading to the release of free amino acids. These amino acids are then absorbed into the bloodstream and utilized by the body for various functions, including tissue repair and the synthesis of new proteins.Moreover, proteases (蛋白酶) are not only important for digestion but also play critical roles in cellular regulation. They are involved in the activation and deactivation of various proteins, thereby influencing numerous signaling pathways. For example, in the immune system, certain proteases (蛋白酶) are responsible for processing cytokines, which are signaling molecules that mediate immune responses. By regulating the activity of these cytokines, proteases (蛋白酶) help ensure that the immune response is appropriate and effective.In addition to their physiological roles, proteases (蛋白酶) have significant implications in various diseases. Abnormal activity of proteases (蛋白酶) can lead to pathological conditions. For instance, excessive activity of certain proteases (蛋白酶) has been implicated in cancer progression, as they can facilitate tumor invasion and metastasis. Conversely, deficiencies in proteases (蛋白酶) can result in disorders such as cystic fibrosis, where the lack of specific proteases (蛋白酶) leads to the accumulation of misfolded proteins in cells.The study of proteases (蛋白酶) is an active area of research, with scientists exploring their roles in health and disease. Understanding how these enzymes function can lead to the development of targeted therapies for various conditions. For example, inhibitors of specific proteases (蛋白酶) are being investigated as potential treatments for cancer, while enhancing proteases (蛋白酶) activity may provide therapeutic benefits in conditions characterized by protein misfolding.In conclusion, proteases (蛋白酶) are indispensable enzymes that facilitate the breakdown of proteins and regulate numerous biological processes. Their significance extends beyond digestion, influencing cellular signaling and contributing to disease mechanisms. As we continue to uncover the complexities of proteases (蛋白酶), we pave the way for innovative approaches to medical treatment and a deeper understanding of life at the molecular level.