SLAC Today is
available online at:
http://today.slac.stanford.edu
In this issue:
Stanford Collaboration Reveals a Case of Microscopic Teamwork
Colloquium Monday: Recent Discoveries in Human Evolution: A Tapas Approach
"Quasar" Shakes Up Art World
Monday - January 28, 2008 |
Stanford Collaboration Reveals a Case of Microscopic TeamworkThe exchange of ideas and information among scientists is nothing new. Now, in fitting parallel, a collaboration between two Stanford labs has revealed a unique case of collaboration in the microscopic world. The results are published in the January 25 edition of the journal Cell. The GTPase proteins are a large family of enzymes involved in a host of activities inside cells. Using X-ray diffraction at the Stanford Synchrotron Radiation Laboratory (SSRL) beamlines 11-1 and 7-1, researchers from the labs of Stanford professors Axel Brunger and Suzanne Pfeffer have found an unexpected instance of two different GTPase proteins working together. Brunger, whose primary focus is the mechanics of neurotransmission, and Pfeffer, who studies how receptors are moved around in mammalian cells, joined forces to look at how two different GTPase proteins function at the membrane surface of a cellular organelle called the Golgi complex. Proteins are transported to specific sites within cells enclosed in packets called transport vesicles, which are moved along a specialized network of tracks called microtubules. The Golgi complex is a central sorting station in cells, and is at the center of the cell's secretion machinery. But exactly how vesicles carrying incoming proteins recognize the Golgi as their correct targets is poorly understood. Read more... |
||
Recent Discoveries in Human Evolution: A Tapas ApproachIn this afternoon's Colloquium, Stanford Professor David DeGusta will discuss recent advances in the science of human evolution. Professor DeGusta will review the major questions regarding human origins, the methods used to address those questions and the current leading hypotheses about the beginnings of our species. More information about the study of human origins at Stanford is available here. The colloquium will take place at 4:15 p.m. today in Panofsky Auditorium. All are invited to attend. |
"Quasar" Shakes Up
|
Events (see all | submit)
Access (see all)Announcements
|
| ||
<%
Response.AddHeader "Last-modified", getArticleDate()
'Response.AddHeader "Last-modified","Mon, 01 Sep 1997 01:03:33 GMT"
'Monday, December 06, 2010
%> View online at http://today.slac.stanford.edu/. |