Catalase is a common enzyme found in nearly all living organisms exposed to oxygen (such as bacteria, plants, and animals) which catalyzes the decomposition...
39 KB (4,277 words) - 02:21, 12 September 2024
Catalase-peroxidase (EC 1.11.1.21, katG (gene)) is an enzyme with systematic name donor:hydrogen-peroxide oxidoreductase. This enzyme catalyses the following...
3 KB (289 words) - 13:27, 26 August 2023
removal, humans with genetic deficiency of catalase — "acatalasemia" — or mice genetically engineered to lack catalase completely, experience few ill effects...
94 KB (10,242 words) - 11:14, 4 October 2024
hydroquinones and hydrogen peroxide, the other holding hydrogen peroxide and catalase enzymes. These chemicals mix and result in an explosive ejection, reaching...
154 KB (16,881 words) - 16:02, 8 October 2024
known also as the hay bacillus or grass bacillus, is a gram-positive, catalase-positive bacterium, found in soil and the gastrointestinal tract of ruminants...
53 KB (6,262 words) - 13:26, 20 August 2024
Helicobacter pylori (section Catalase)
host, H. pylori uses many different virulence factors including oxidase, catalase, and urease. Urease is the most abundant protein, its expression representing...
148 KB (16,625 words) - 19:18, 2 October 2024
aerotolerant anaerobes have superoxide dismutase and (non-catalase) peroxidase but do not have catalase. More specifically, they may use a NADH oxidase/NADH...
3 KB (204 words) - 12:06, 9 July 2024
saprotrophic coccus bacterium in the family Micrococcaceae. It is urease and catalase positive. An obligate aerobe, M. luteus is found in soil, dust, water and...
7 KB (673 words) - 07:39, 12 September 2024
can usually resist infections of catalase-negative bacteria but are susceptible to catalase-positive bacteria. Catalase is an enzyme that catalyzes the...
31 KB (3,478 words) - 22:37, 11 August 2024
EM, Downs A, Marcey D. "Proposed Mechanism of Catalase". Catalase: H2O2: H2O2 Oxidoreductase: Catalase Structural Tutorial. Retrieved 11 February 2007...
150 KB (17,078 words) - 12:22, 24 August 2024
spp. and Streptococcus spp. is the catalase test. Staphylococci are catalase positive whereas streptococci are catalase-negative. S. pyogenes can be cultured...
41 KB (4,042 words) - 12:33, 8 October 2024
Acid from sucrose + Nitrate reduction + (to nitrite) Deoxyribonuclease, 25 °C + Lipase + Pigment some biovars produce red Catalase production (24h) +...
30 KB (3,314 words) - 13:18, 11 September 2024
low levels of the enzyme catalase. Catalase breaks down hydrogen peroxide in cells into water and oxygen. Low levels of catalase can cause hydrogen peroxide...
5 KB (412 words) - 01:13, 25 February 2024
the upper respiratory tract and on the skin. It is often positive for catalase and nitrate reduction and is a facultative anaerobe, meaning that it can...
114 KB (12,721 words) - 16:39, 4 October 2024
Growth at 6.5% NaCl + Biochemical characters Gram staining - Oxidase - Catalase - Oxidative-Fermentative Fermentative β-Galactosidase + Utilization of...
33 KB (3,744 words) - 09:21, 6 October 2024
when the kidney senses low blood pressure. The liver produces the enzyme catalase to break down hydrogen peroxide, a toxic oxidising agent, into water and...
87 KB (10,331 words) - 19:16, 14 October 2024
Bilophila wadsworthia is a Gram-negative, obligately anaerobic, catalase-positive, bile-resistant, and asaccharolytic bacillus. Approximately 75% of B...
10 KB (1,055 words) - 21:27, 9 January 2024
v t e KatG is an enzyme that functions as both catalase and peroxidase. In Mycobacterium tuberculosis, mutations in KatG are commonly associated with resistance...
2 KB (242 words) - 04:21, 28 September 2024
removed by antioxidant metabolites such as glutathione and enzymes such as catalases and peroxidases. Living organisms must obey the laws of thermodynamics...
113 KB (12,407 words) - 18:55, 25 September 2024
canavalin, (b) creatine kinase, (c) lysozyme, (d) beef catalase, (e) porcine alpha amylase, (f) fungal catalase, (g) myglobin, (h) concanavalin B, (i) thaumatin...
32 KB (4,026 words) - 20:10, 20 August 2024
of the viridans group. It tests negative for cytochrome, oxidase, and catalase, and positive for alpha-hemolytic activity. It is non-motile and does not...
18 KB (1,872 words) - 13:31, 17 October 2023
reaction is catalyzed by enzymes (proteins that serve as catalysts) such as catalase. Another example is the effect of catalysts on air pollution and reducing...
46 KB (5,235 words) - 10:42, 26 September 2024
they do not produce coagulase. S. aureus is catalase-positive (meaning that it can produce the enzyme catalase) and able to convert hydrogen peroxide (H2O2)...
27 KB (2,812 words) - 08:46, 9 September 2024
increases serum levels of creatinine, uric acid or hemoglobin. Inhibited by catalase. Kodak Ektachem A dry chemistry method. Uses spectrophotometry to measure...
39 KB (4,035 words) - 04:14, 25 August 2024
(H2O2), the byproduct of oxalate oxidase reaction, can be neutralized by catalase. Alarm photosynthesis represents a photosynthetic variant to be added to...
109 KB (11,779 words) - 23:18, 7 September 2024
Hydrogen peroxide is also damaging and is degraded by other enzymes such as catalase. Thus, SOD is an important antioxidant defense in nearly all living cells...
48 KB (5,242 words) - 20:43, 12 October 2024
known as Enterobacter aerogenes, is a Gram-negative, oxidase-negative, catalase-positive, citrate-positive, indole-negative, rod-shaped bacterium. Capable...
8 KB (710 words) - 05:47, 17 September 2024
and made up of non-motile and non-sporing cocci (round cells) that are catalase negative. It is a commensal and commonly inhabits the human mouth, throat...
6 KB (576 words) - 20:07, 13 September 2024
grape-like clusters of cells. Most streptococci are oxidase-negative and catalase-negative, and many are facultative anaerobes (capable of growth both aerobically...
42 KB (3,766 words) - 04:21, 11 September 2024
accumulation of hydrogen peroxide and abnormally low levels of the enzyme catalase, which breaks down hydrogen peroxide and relieves oxidative stress in patients...
16 KB (1,854 words) - 11:53, 6 October 2024