• Thumbnail for Catalase
    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
  • Thumbnail for Beetle
    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
  • Thumbnail for Bacillus subtilis
    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
  • Thumbnail for Helicobacter pylori
    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
  • Thumbnail for Aerotolerant anaerobe
    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
  • Thumbnail for Micrococcus luteus
    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
  • Thumbnail for Chronic granulomatous disease
    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
  • Thumbnail for Iron
    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
  • Thumbnail for Streptococcus pyogenes
    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
  • Thumbnail for Serratia marcescens
    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
  • Thumbnail for Acatalasia
    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
  • Thumbnail for Staphylococcus aureus
    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
  • Thumbnail for Borrelia burgdorferi
    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
  • Thumbnail for Liver
    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
  • Thumbnail for Metabolism
    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
  • Thumbnail for Space manufacturing
    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
  • Thumbnail for Streptococcus thermophilus
    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
  • Thumbnail for Catalysis
    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
  • Thumbnail for Staphylococcus
    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
  • Thumbnail for Blood sugar level
    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
  • Thumbnail for Photosynthesis
    (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
  • Thumbnail for Superoxide dismutase
    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
  • Thumbnail for Streptococcus
    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
  • Thumbnail for Greying of hair
    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