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protein

(Encyclopedia)protein, any of the group of highly complex organic compounds found in all living cells and comprising the most abundant class of all biological molecules. Protein comprises approximately 50% of cellu...

Johnston Atoll

(Encyclopedia)Johnston Atoll, atoll, 2.8 sq mi (7.25 sq km), central Pacific, c.700 nautical mi (1,300 km) SW of Honolulu, central Pacific, an uninc. territory of the United States. It consists of four islands and ...

Karle, Jerome

(Encyclopedia)Karle, Jerome kärl [key], 1918–2013, American physicist, b. New York City, Ph.D. Univ. of Michigan, 1943. He worked on the Manhattan Project before beginning a career (1946–2009) at the U.S. Nava...

X-ray crystallography

(Encyclopedia)X-ray crystallography, the study of crystal structures through X-ray diffraction techniques. When an X-ray beam bombards a crystalline lattice in a given orientation, the beam is scattered in a defini...

adrenocorticotropic hormone

(Encyclopedia)adrenocorticotropic hormone ədrēˈnōkôrˌtəkōtrŏpˈĭk [key], polypeptide hormone secreted by the anterior pituitary gland. Its chief function is to stimulate the cortex of the adrenal gland to...

tachinid fly

(Encyclopedia)tachinid fly tăkˈənĭd [key], common name for any of the flies of the family Tachinidae, which parasitize caterpillars, beetles, grasshoppers, and other insects. Tachinid flies are generally small ...

Tsien, Roger Yonchien

(Encyclopedia)Tsien, Roger Yonchien, 1952–2016, American biochemist, b. New York City, Ph.D. Cambridge, 1977. Tsien was a researcher at Cambridge (1977–81) and a professor at the Univ. of California, Berkeley (...

phospholipid

(Encyclopedia)phospholipid fŏsˌfōlĭpˈĭd [key], lipid that in its simplest form is composed of glycerol bonded to two fatty acids and a phosphate group. The resulting compound called phosphatidic acid contains...

physiology

(Encyclopedia)physiology fĭzēŏlˈəjē [key], study of the normal functioning of animals and plants during life and of the activities by which life is maintained and transmitted. It is based fundamentally on the...

Rosbash, Michael Morris

(Encyclopedia)Rosbash, Michael Morris, 1944–, American geneticist, b. Kansas City, Mo., Ph.D. Massachusetts Institute of Technology 1970. Rosbash has been a professor at Brandeis Univ. since 1974, and he is also ...