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Catalase is a tetramer of four polypeptide chains, each over 500 amino acids long. [7] It contains four iron-containing heme groups that allow the enzyme to react with hydrogen peroxide. The optimum pH for human catalase is approximately 7, [8] and has a fairly broad maximum: the rate of reaction does not change appreciably between pH 6.8 and 7 ...
Acatalasia is an autosomal recessive peroxisomal disorder caused by absent or very low levels of the enzyme catalase. [2] Catalase breaks down hydrogen peroxide in cells into water and oxygen. Low levels of catalase can cause hydrogen peroxide to build up, causing damage to cells.
Since Vietnam's urbanization in the first half of the 20th century, Com Tam became popular across Southern provinces, including Saigon. [5] [4] [6] When Saigon was bustling with many people from many countries around the world, food sellers adapted Com Tam to be more suitable for foreign customers like the French, American, Chinese, and Indian.
Ribbon representation of the Streptomyces lividans β-1,4-endoglucanase catalytic domain - an example from the family 12 glycoside hydrolases [1]. Cellulase (EC 3.2.1.4; systematic name 4-β-D-glucan 4-glucanohydrolase) is any of several enzymes produced chiefly by fungi, bacteria, and protozoans that catalyze cellulolysis, the decomposition of cellulose and of some related polysaccharides:
The Vietnamese Wikipedia (Vietnamese: Wikipedia tiếng Việt) is the Vietnamese-language edition of Wikipedia, a free, publicly editable, online encyclopedia supported by the Wikimedia Foundation. Like the rest of Wikipedia, its content is created and accessed using the MediaWiki wiki software.
The katal (symbol: kat) is that catalytic activity that will raise the rate of conversion by one mole per second in a specified assay system. [1] It is a unit of the International System of Units (SI) [1] used for quantifying the catalytic activity of enzymes (that is, measuring the enzymatic activity level in enzyme catalysis) and other catalysts.
العربية; Azərbaycanca; Башҡортса; Беларуская; Български; Bosanski; Català; Čeština; Cymraeg; Dansk; Deutsch; Eesti ...
Later, in 1920, French-Polish linguist Jean Przyluski found that Mường is more closely related to Vietnamese than other Mon–Khmer languages, and a Viet–Muong subgrouping was established, also including Thavung, Chut, Cuoi, etc. [12] The term "Vietic" was proposed by Hayes (1992), [13] who proposed to redefine Viet–Muong as referring to ...