The endoplasmic reticulum (ER) is a continuous membrane system consisting of the nuclear envelope and a peripheral network of membrane tubules and sheets.
In an online PNAS article, the Spiegelman Lab reports on what happens when brown, white, and beige fat cells are exposed to a range of cold temperatures in vitro.
We congratulate Pere Puigserver on his promotion to Professor of Cell Biology and Samara Reck-Peterson on her promotion to Associate Professor of Cell Biology.