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image: Ubiquitin Chains in Action

Ubiquitin Chains in Action

By | July 1, 2012

Present in every tissue of the body, ubiquitin appears to be involved in a dizzying array of functions, from cell cycle and division to organelle and ribosome biogenesis, as well as the response to viral infection. The protein plays at least two role


image: Ubiquitin basics

Ubiquitin basics

By | July 1, 2012

Despite its discovery as a protein that seems to show up everywhere, at least in eukaryotic cells, researchers are only beginning to scratch the surface of all of the cellular functions involving ubiquitin. 


image: Designing Transition-State Inhibitors

Designing Transition-State Inhibitors

By | May 1, 2012

A transition-state mimic has the power to bind an enzyme at its tipping point as strongly as any available inhibitor and more strongly than most, preventing enzymatic activity. 


image: Lost in Space

Lost in Space

By | September 1, 2011

Looking for a more realistic way to study memory, we turned to place cells­­—­a network of cells that record a rat’s memory of an environment. 


image: Molecular Learning

Molecular Learning

By | September 1, 2011

Long-term potentiation (LTP), discovered in the 1970s, was later shown to be the molecular basis of memory. 


image: The Seat of Memory

The Seat of Memory

By | September 1, 2011

Early on, researchers had learned that the hippocampus was the structure in the brain where long-term memories were created and stored, but it was not known whether the different cell types within this structure might be more or less susceptible to the aging process.


image: The Cytokine Cycle

The Cytokine Cycle

By | September 1, 2011

The initiating cause of Alzheimer’s disease is still unknown. However, from our studies it’s clear that many types of neuronal damage—­­from traumatic brain injury, to epilepsy, infection, or genetic predisposition—­can activate brain immune cells—microglia and astrocytes-- promoting them to produce IL-1 and S100 inflammatory cytokines.


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