The proteasome is a large, highly conserved protein complex whose main function is to enzymatically degrade target proteins. The eukaryotic proteasome houses six protease sites that are located deep w...

The F1F0 ATP synthase is a large protein complex that catalyzes the formation of ATP from ADP and inorganic phosphate using a proton gradient as a source of energy. In eukaryotes, the F1F0 ATP syntha...

The F1F0 ATP synthase is a large protein complex that catalyzes the formation of ATP from ADP and inorganic phosphate using a proton gradient as a source of energy. In eukaryotes, the F1F0 ATP syntha...

The F1F0 ATP synthase is a large protein complex that catalyzes the formation of ATP from ADP and inorganic phosphate using a proton gradient as a source of energy. In eukaryotes, the F1F0 ATP syntha...

Protein translocation is the process by which peptides are transported across a membrane bilayer. Translocation of proteins across the membrane of the endoplasmic reticulum (ER) is know to occur in on...

Model of the yeast Origin Recognition Complex ORC)complexed with double stranded DNA incorporating a sequence that encodes the replication origin. The 3D structure of the complex with bound DNA was de...

QuickTime movie of a complete optical scan through a rabbit intestinal villus tip infected with infected with 10× the amount (4 × 108 CFU/ml) of ΔinlA L. monocytogenes (green) than shown for Wt-GFP...

The F1F0 ATP synthase is a large protein complex that catalyzes the formation of ATP from ADP and inorganic phosphate using a proton gradient as a source of energy. In eukaryotes, the F1F0 ATP syntha...

Platinum replica depicting the cytoskeletal organization of dendritic spines in extracted 14 DIV neurons. Mushroom spines associate with dendrites at the base (bottom) and with axons by the head (top)...

Movie showing 5 clips of the three-dimensional details of rod spherule mitochondria generated using electron tomography. Spherules have one large ovoid mitochondrion located near the active zone. Cli...