Proteins Crossing Membranes —— A Scientist Memoir

----- 蛋白质穿越膜：科学家回忆录

ISBN: 9780367074500 出版年：2019 页码：249 Rothman, Stephen CRC Press

In an intriguing series of experiments carried out many years ago, a common scientific belief, feted by no less than three Nobel prizes, was brought into question. The observations were about proteinshe molecules that the genetic code specifies and that are in one way or another central to all of life activities. The experiments however were not about what proteins do, but how they are moved, in particular how they are moved from where they are made to where they act.銆€The results of these studies conflicted with the standard view of how this happens, and thus became controversial. The standard view, the vesicle theory of protein secretion, envisions proteins being carried within and out of cells en masse in membrane-bound sacs or vesicles. The controversial experiments demonstrated that to the contrary individual protein molecules cross the relevant membranes as a result of their own motion. This was thought to be impossible at the time. Proteins Crossing Membranes銆€is a personal narrative that tells the story of the controversy. Among other things, the author illustrates that scientists, like the rest of us, can rigidly hold onto their beliefs despite evidence that they are misguided.銆€ Key Features Reviews the data in support and critical of the vesicle theory of protein secretion Explores the ways scientists respond to evidence that challenges a favored theory Documents the author personal experiences in this conflict-laden situation