使蛋白质特性和结构散发光芒的三重奖诺贝尔化学奖纵横光谱

继基因革命而来的时髦新词是蛋白质学(PRO-TEOMICS)——研究从活细胞产生的蛋白质的多样性的学说。今年的诺贝尔化学奖颁发给三位研究人员——他们研制出了用于分析蛋白质的二项关键工具。     

Disassociation of oogonia formation from oospore production inPhytophthora cactorum by sterols with varying side chain lengths

Cellular and Molecular Life Sciences - A series of 20(R)-n-alkylpregn-5-en-3β-ols with 0 to 9 (but not with 12) C-atoms in the alkyl group induced formation of oogonia inPhytophthora cactorum....     

Octopamine levels during the moult cycle and adult development in the migratory locust,Locusta migratoria

Summary Octopamine content of the head of the locustLocusta migratoria has been determined during the last larval stage, moulting and adult life of 3 groups of insects: female and male gregarious, solitary and CO₂ solitarized. An important difference was found between these 3 groups. Octopamine contents increased in the middle of the larval life and during the adult life. The moulting time is characterized by a sharp decrease of the octopamine content which becomes identical in the 3 groups of insects. The relation between octopamine content, hormone cycles and motility is discussed.     

Secretion of high density lipoprotein by the isolated perfused alcoholic rat liver

Summary Chronic alcohol feeding of a low fat diet for 5 weeks led to a slightly raised though statistically non-significant high density liproprotein cholesterol/apoB containing lipoprotein cholesterol ratio in both the fasting rat serum as well as the secretory products of the isolated perfused liver.Acknowledgments. Human RBC was kindly supplied by the Canadian Red Cross. This work was supported by MRC, DISCUS and the Department of National Health and Welfare, Canada. H. L. is the holder of an MRC studentship.