Catalase is a common enzyme found in nearly all living organisms exposed to oxygen.

Catalase is a tetramer of four polypeptide chains, each over 500 amino acids long .< ref name = Boon_a > It contains four porphyrin heme ( iron ) groups that allow the enzyme to react with the hydrogen peroxide.

Catalase was first noticed in 1818 when Louis Jacques Thénard, who discovered H < sub > 2 </ sub > O < sub > 2 </ sub > ( hydrogen peroxide ), suggested its breakdown is caused by an unknown substance.

Catalase is usually located in a cellular, bipolar environment organelle called the peroxisome.

Catalase is used in the food industry for removing hydrogen peroxide from milk prior to cheese production.

Catalase is also used in the textile industry, removing hydrogen peroxide from fabrics to make sure the material is peroxide-free.

Catalase is an enzyme that catalyzes the breakdown of hydrogen peroxide in many organisms.

Catalase, which is concentrated in peroxisomes located next to mitochondria, reacts with the hydrogen peroxide to catalyze the formation of water and oxygen.

Catalase can also catalyze the oxidation, by hydrogen peroxide, of various metabolites and toxins, including formaldehyde, formic acid, phenols, acetaldehyde and alcohols.

Catalase reactions vary among Enterobacteriaceae.

* Catalase test on nutrient agar tests for the production of catalase enzyme, which splits hydrogen peroxide and releases oxygen gas.

* Catalase, an enzyme

Catalase contributes to ethanol metabolism in the body after ingestion of alcohol, but it only breaks down a small fraction of the alcohol in the body.

Catalase has been shown to interact with the ABL2 and Abl genes.

USML-2 Experiments included: the Surface Tension Driven Convection Experiment ( STDCE ), the Drop Physics Module, the Drop Dynamics Experiment ; the Science and Technology of Surface-Controlled Phenomena experiment ; the Geophysical Fluid Flow Cell Experiment ; the Crystal Growth Furnace, the Orbital Processing of High Quality Cadmium Zinc Telluride Compound Semiconductors experiment ; the Study of Dopant Segregation Behavior During the Crystal Growth of Gallium Arsenide ( GaAs ) in Microgravity experiment ; the Crystal Growth of Selected II-VI Semiconducting Alloys by Directional Solidification experiment ; the Vapor Transport Crystal Growth of Mercury Cadmium Tellurida in Microgravity experiment ; the Zeolite Crystal Growth Furnace ( ZCG ), the Interface Configuration Experiment ( ICE ), the Oscillatory Thermocapillary Flow Experiment ; the Fiber Supported Droplet Combustion Experiment ; the Particle Dispersion Experiment ; the Single-Locker Protein Crystal Growth experiment ; ( including the Protein Crystallization Apparatus for Microgravity ( PCAM ) and the Diffusion-controlled Crystallization Apparatus for Microgravity ( DCAM )); the Crystal Growth by Liquid-Liquid Diffusion, the Commercial Protein Crystal Growth experiment ; the Advanced Protein Crystallization Facility, Crystallization of Apocrystacyanin C experiment ; Crystal Structure Analysis of the Bacteriophage Lambda Lysozyme, Crystallization of RNA Molecules Under Microgravity Conditions experiment ; Crystallization of the Protein Grb2 and Triclinic Lysozyme experiment ; Microgravity Crystallization of Thermophilic Aspartyl-tRNA Synthetase and Thaumatin experiment ; Crystallization in a Microgravity Environment of CcdB experiment ; A Multivariate Analysis of X-ray Diffraction Data Obtained from Glutathione S Transferase experiment ; Protein Crystal Growth: Light-driven Charge Translocation Through Bacteriorhodopsin experiment ; Crystallization of Ribosome experiment ; Crystallization of Sulfolobus Solfataricus Alcohol Dehydrogenase experiment ; Crystallization of Turnip Yellow Mosaic Virus, Tomato Aspermy Virus, Satellite Panicum Mosaic Virus, Canavalin, Beef Liver Catalase, Concanavalin B experiment ; Crystallization of the Epidermal Growth Factor ( EGF ); Structure of the Membrane-Embedded Protein Complex Photosystem I ; Crystallization of Visual Pigment Rhodopsin ; Commercial Generic Bioprocessing Apparatus ; Astroculture Facility and Experiment.

Catalase and superoxide dismutase ameliorate the damaging effects of hydrogen peroxide and superoxide by converting these compounds into oxygen and water, benign molecules.

It is also possible, but equally doubtful, that he actually shot down the hundreds of men with which his legend credits him.

Recognizing that the Rule of Law is `` a dynamic concept which should be employed not only to safeguard the civil and political rights of the individual in a free society '', the Congress asserted that it also included the responsibility `` to establish social, economic, educational and cultural conditions under which his legitimate aspirations and dignity may be realized ''.

At General Power's seat in the balcony there is also a gold phone.

In addition to the authentication and acknowledgment procedures which precede and follow the sending of the go messages, again in special codes, each message also contains an `` internal authenticator '', another specific signal to convince the recipient that he is getting the real thing.

He added that he also stresses the works of these favorite masters on tour, especially Mahler's First and Fourth symphonies, and Das Lied Von der Erde, and Bruckner's Sixth -- which is rarely played -- and Seventh.

The test of form is fidelity to the experience, a gauge also accepted by the abstract expressionist painters.

Though he is also concerned with freeing dance from pedestrian modes of activity, Merce Cunningham has selected a very different method for achieving his aim.

The answers derived by these means may determine not only the temporal organization of the dance but also its spatial design, special slips designating the location on the stage where the movement is to be performed.

It is because there is not only darkness but also light that our situation becomes inexplicable.

but there is also compassion.

also he is a drunk, and has lost his job on that account.

And if I have gone into so much detail about so small a work, that is because it is also so typical a work, representing the germinal form of a conflict which remains essential in Mann's writing: the crude sketch of Piepsam contains, in its critical, destructive and self-destructive tendencies, much that is enlarged and illuminated in the figures of, for instance, Naphta and Leverkuhn.

By `` image '' is meant not only a visual presentation, but also remembered sensations of any of the five senses plus the feelings which are immediately conjoined therewith.

he is questioning, also, every epistemology which stems from Hume's presupposition that experience is merely sense data in abstraction from causal efficacy, and that causal efficacy is something intellectually imputed to the world, not directly perceived.

it is true that they are also extremely dull.

Now the detective must save his own skin by informing on the girl he loves, who is also the real murderer.

But it is also the climax to one of the absorbing chapters in our current political history.

Since a civilizational crisis involves also a crisis in private interests and in the ruling class, reaction is normally found among those who feel themselves to be among the ruling class.

`` The Rocking Horse Winner '' is also a story about a boy's love for his mother.

Evidence is plentiful that early and later also he has been indebted to the Gothic romancers, who deal in extravagant horror, to the symbolists writing at the end of the preceding century, and in particular to the stream-of-consciousness novelists, Henry James and James Joyce among them.

We have proved so able to solve technological problems that to contend we cannot realize a universal goal in the immediate future is to be extremely shortsighted, if nothing else.

As a means of silencing a discussion which ought to have taken place, the statement is an effective one: we sympathize with the universal confusion which gives rise to such convictions.

The child of this problem was Mr. Brown's famous Serial No. 1 Universal Milling Machine, the archtype from which is descended today's universal knee-type milling machine used throughout the world.

It is the hope of attaining a list of items of universal occurrence.

I would propose, first, an abandonment of attempts at a universal lexical list, as intrinsically unachievable, and operationally inadequate in proportion as it is achieved.

that is, from aspects of a universal system of Justice into particular rules governing the relations of sovereign states.

And when psychology explains glibly, `` but the subconscious mind is able to produce it '' it refers to a mental region so vaguely identified that it may embrace the entire universal mind as conceivably as part of the individual mind.

Each scene is shot straight through, as had been the universal custom, from a camera fixed in a single position, but in the outdoor scenes, especially in the capture and destruction of the outlaws, Porter's camera position breaks, necessarily, with the camera position standard until then, which had been, roughly, that of a spectator in a center orchestra seat at a play.

Each system develops differently, according to the area it serves, but the universal goal is to pool the resources of a given area for maximum efficiency.

One of the most widespread features of contemporary thought is the almost universal disbelief in the reality of spirit.

The death of a man is unique, and yet it is universal.

Christ is both unique and universal.

The study of kinship and social organization is a central focus of cultural anthropology, as kinship is a human universal.

There is no single " Anglican Church " with universal juridical authority as each national or regional church has full autonomy.

With this, the perspective of the author is removed from the text, and the limits formerly imposed by the idea of one authorial voice, one ultimate and universal meaning, are destroyed.

* Mohism, which advocated the idea of universal love: Mozi believed that " everyone is equal before heaven ", and that people should seek to imitate heaven by engaging in the practice of collective love.

In modern English, " Americans " generally refers to residents of the United States, and among native speakers of English this usage is almost universal, with any other use of the term requiring specification of the subject under discussion.

* Extent of the atonement – Arminians, along with four-point Calvinists or Amyraldians, hold to a universal drawing and universal extent of atonement instead of the Calvinist doctrine that the drawing and atonement is limited in extent to the elect only, which many Calvinists prefer to call ' particular redemption '.

Both sides ( with the exception of hyper-Calvinists ) believe the invitation of the gospel is universal and " must be presented to everyone can reach without any distinction.

Though their holding-power-to-weight ratio is significantly lower than admiralty pattern anchors, their ease of handling and stowage aboard large ships led to almost universal adoption.

where < big ></ big > is the number of degrees of freedom divided by two, R is the universal gas constant and n is the number of moles in the system ( a constant ).