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- 1From:The Gale Encyclopedia of Science (Vol. 3. 6th ed.)The introduction of the techniques of modern molecular biology, beginning in the 1970s, have made possible the genetic engineering of proteins. New proteins can be created and existing proteins altered. Enzymes are...
- 2From:The Gale Encyclopedia of Science (Vol. 2. 6th ed.)Cytochromes are electron-transporting protein pigments concerned with cell respiration that contain an iron-containing molecule called heme, allied to that of hemoglobin. When the iron of heme accepts an electron, it...
- 3From:The Gale Encyclopedia of Science (Vol. 3. 6th ed.)Enzymes are biological catalysts. A catalyst is an agent that increases the rate of chemical reactions (the speed at which the reactions occur) without being used up or altered in the reaction. Enzymes are also...
- 4From:Australia BiotechnologyThe filamentous fungus Aspergillus niger is widely used in the biotechnology industry for the production of chemicals and enzymes. Engineering of this valuable organism to improve its productivity is currently hampered...
- 5From:Australia BiotechnologyThe filamentous fungus Aspergillus niger is widely used in the biotechnology industry for the production of chemicals and enzymes. Engineering of this valuable organism to improve its productivity is currently hampered...
- 6From:Australia BiotechnologyThe filamentous fungus Aspergillus niger is widely used in the biotechnology industry for the production of chemicals and enzymes. Engineering of this valuable organism to improve its productivity is currently hampered...
- 7From:Australia BiotechnologyThe filamentous fungus Aspergillus niger is widely used in the biotechnology industry for the production of chemicals and enzymes. Engineering of this valuable organism to improve its productivity is currently hampered...
- 8From:Australia BiotechnologyThe filamentous fungus Aspergillus niger is widely used in the biotechnology industry for the production of chemicals and enzymes. Engineering of this valuable organism to improve its productivity is currently hampered...
- 9From:Australia BiotechnologyThe filamentous fungus Aspergillus niger is widely used in the biotechnology industry for the production of chemicals and enzymes. Engineering of this valuable organism to improve its productivity is currently hampered...
- 10From:WHO Technical Report SeriesThe following general specifications were prepared by the Committee at its sixty-seventh meeting (2006) for publication in FAO JECFA Monographs 3 (2006), superseding the general specifications prepared at the...
- 11From:Encyclopedia of World BiographyBIOGRAPHICAL ESSAY Max Perutz (born 1914) pioneered the use of X-ray crystallography to determine the atomic structure of proteins by combining two lines of scientific investigation--the physiology of hemoglobin and...
- 12From:The New Dictionary of Cultural Literacy: What Every American Needs to Know (3rd ed.)Pronunciation: (en-zeyem) A protein molecule that helps other organic molecules enter into chemical reactions with one another but is itself unaffected by these reactions. In other words, enzymes act as catalysts for...
- 13From:Encyclopedia of World BiographyBIOGRAPHICAL ESSAY The Swedish biochemist Axel Hugo Theodor Theorell (1903-1982) was awarded the Nobel Prize in Physiology or Medicine for his discoveries concerning the nature and mode of action of oxidation...
- 14From:Encyclopedia of World BiographyBIOGRAPHICAL ESSAY The American scientist, educator, and administrator George Wells Beadle (1903-1989) demonstrated the role of genes in the control of biochemical reactions in living organisms. George Beadle was...
- 15From:Encyclopedia of World BiographyBIOGRAPHICAL ESSAY The scientist Gerti T. Cory (1896-1957) made important discoveries in biochemistry, especially carbohydrate metabolism, and in 1947, along with her husband, received the Nobel Prize in medicine or...
- 16From:National Institute on Drug Abuse PamphletsScientists at the University of California, Irvine, have added to evidence that a brain enzyme controls key memory processes that link drug experiences, the surroundings in which they take place, and the urge to repeat...
- 17From:National Institute on Drug Abuse PamphletsSmokers who want to quit can get help with a variety of treatments, including counseling, nicotine replacement therapy (patches, gum, lozenges, or inhalers), and medications. Some smokers use these treatments and...
- 18From:Health A-to-ZPancreatitis Overview What Is It? Pancreatitis is inflammation of the pancreas, the large gland located behind the stomach. Pancreatitis can be acute, chronic, or recurrent. Acute pancreatitis is a sudden...
- 19From:Encyclopedia of World BiographyBIOGRAPHICAL ESSAY American biochemist Paul D. Boyer (born 1918) is the co-recipient of the 1997 Nobel Prize for Chemistry. He received his share of the award for explaining the enzymatic mechanism that underlies the...
- 20From:WHO Technical Report Series(1.) FAO/WHO. Joint FAO/WHO Conference on Food Additives. Rome, Food and Agriculture Organization of the United Nations, 1956 (FAO Nutrition Meetings Report Series, No. 11); Geneva, World Health Organization, 1956 (WHO...