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酶和辅酶

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Aprotinin 2022-06-04

Aprotinin, also known as antienzyme peptide, is a competitive and reversible serine protease inhibitor. It forms stable complexes with serine proteases, blocking the active site of the enzyme. Aprotinin inhibits chymotrypsin, trypsin, kallikrein, and plasmin but does not inhibit Factor Xa or thrombin.
β-Glucuronidase 2022-06-04

β-Glucuronidase (β-GC) is widely present in animals, plants, microorganisms, and cultured cells, catalyzing the hydrolysis of β-glycosidic bonds and playing various physiological roles. In the saccharification of cellulose, β-GC is responsible for further hydrolyzing cellobiose and cellulose oligosaccharides into glucose. β-GC also hydrolyzes terpene aroma precursors, converting glycosidically bound forms into free forms, thereby producing fragrance. Additionally, β-GC can hydrolyze prunasin in plants, releasing HCN to deter insect feeding.
Lysozyme 2022-06-04
β-Amylase 2022-06-04
Superoxide Dismutase (SOD) 2022-06-04

The primary function of superoxide dismutase (SOD) is to specifically eliminate superoxide anions (O₂⁻) in the body, thereby preventing oxidative damage to body components caused by these anions.
Uricase 2022-06-04

Uricase, also known as uric acid oxidase, is an enzyme involved in the purine degradation pathway in living organisms. In birds, reptiles, and non-human primates, it catalyzes the oxidation of uric acid using molecular oxygen as an acceptor, producing allantoin, carbon dioxide, and hydrogen peroxide. Uricase was first discovered in the kidneys of cattle and has since been found in animals, plants, fungi, yeast, and bacteria.
Alkaline Phosphatase (ALP) 2022-06-04
Pepsin 2022-06-04

Pepsin is a digestive protease secreted by the gastric chief cells in the stomach mucosa. Its function is to break down proteins in food into smaller peptide fragments. The chief cells secrete pepsinogen, which is converted into pepsin upon activation by stomach acid or existing pepsin. Pepsin itself is not directly produced by the cells.
Arbuz 2022-06-04

Arbuz, also known as papaya enzyme, is a proteolytic enzyme. It is a low-specificity protease found in Carica papaya, widely present in the roots, stems, leaves, and fruit, with the highest concentration in the latex of unripe papaya. The active site of Arbuz contains cysteine, classifying it as a sulfhydryl protease. It is known for its high enzymatic activity, good thermal stability, and natural safety, which makes it widely used in food, pharmaceuticals, animal feed, personal care, leather, and textile industries.
苹果酸脱氢酶 2022-06-04

苹果酸脱氢酶 malate dehydrogenase。催化L-苹果酸脱氢变成草酰乙酸的酶。(EC1．1．1．37)。以NAD+作为电子受体。广义上也包括以NAD+或NADP+作为受体而生成丙酮酸和碳酸的苹果酸酶（EC1．1．1．38—40）。与NADP+也有弱反应，也可将其它羟酸脱氢。广泛存在于线粒体、细菌细胞膜上，为三羧酸循环中的一种酶。由于酶的来源不同，其某些性质也不一样。苹果酸在苹果酸脱氢酶催化下脱氢生成草酰乙酸，脱下的氢由NAD+接受生成NADH+H+。再生的草酰乙酸可再次进入三羧酸循环用于柠檬酸的合成。
脂蛋白脂酶 2022-06-04

LPL主要有肝外脂肪酶和HTGL都是细胞溶酶体中的一种水解酶，在血管内皮表面发生作用，二者结构相似，属甘油三酯酶，与胰脂肪酶有同源酶。参与体内脂肪代谢功能。
脂肪酶 2022-06-04

脂肪酶（Lipase，甘油酯水解酶）隶属于羧基酯水解酶类，能够逐步的将甘油三酯水解成甘油和脂肪酸。脂肪酶存在于含有脂肪的动、植物和微生物（如霉菌、细菌等）组织中。包括磷酸酯酶、固醇酶和羧酸酯酶。脂肪酸广泛的应用于食品、药品、皮革、日用化工等方面。

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