Oxidosqualene Cyclase December 2007 Oxidosqualine cyclase forms the unusual fused rings of cholesterol molecules

Multidrug Resistance Transporters November 2007 Many bacteria use multidrug resistance transporters to pump drugs and poisons out of the cell

Superoxide Dismutase October 2007 Superoxide dismutase protects us from dangerously reactive forms of oxygen

Citrate Synthase September 2007 Citrate synthase opens and closes around its substrates as part of the citric acid cycle

Anabolic Steroids August 2007 Anabolic steroids like testosterone are among the most common performance enhancing drugs

Thymine Dimers July 2007 Ultraviolet light damages our DNA, but our cells have ways to correct the damage

Fatty Acid Synthase June 2007 Fatty acids are constructed in many sequential steps by a large protein complex

Aconitase and Iron Regulatory Protein 1 May 2007 Aconitase performs a reaction in the citric acid cycle, and moonlights as a regulatory protein

Clathrin April 2007 Three-armed clathrin triskelions are used to build molecular cages involved in transport

Zinc Fingers March 2007 Zinc ions are used to strengthen small protein modules that recognize DNA

Exosomes February 2007 Exosomes destroy messenger RNA molecules after they have finished their jobs