Genome-wide measurements on mouse liver cells show that transcription, and a particular key transcription factor, have a smaller than expected influence on the mouse circadian system.

A DNA–protein complex can find target sequences of bases in another DNA molecule by sliding along it.

A combination of molecular dynamics simulations and X-ray diffraction data has been used to construct more realistic models of proteins and to provide new insights into their interactions with other proteins and biomolecules.

Novel imaging experiments suggest that fruit flies modify their neural circuitry for walking at slow, medium and fast speeds, and that proprioception is not essential for coordinated walking.

The ability of Manduca moths to recognize changes in the profile of volatile compounds released by plants being attacked by Manduca caterpillars allows them to lay their eggs on plants that are less likely to be attacked by insects and other predators, and to avoid competing against other caterpillars of the same species for resources.

Identifying and treating those groups of individuals that are most likely to transmit the malaria parasite to mosquitoes could help to control the spread of the disease.

The strain of Phytophthora infestans that caused the Great Famine in the late 1840s was caused by a single genotype that is distinct from, but closely related to, the most prevalent modern genotype.

Imaging experiments reveal that some brain regions do not distinguish between actions performed using tools and those performed using the hands, while others represent these two types of action separately.

Quantitative observations of single-molecule binding between antigen and T cell receptor (TCR) in living primary T cells reveals unbinding kinetics, stoichiometry and signaling molecule recruitment, providing insights into the mechanisms of antigen recognition by the immune system.

The basal body of the type-III secretion system of Yersinia enterocolitica within bacterial membranes shows elasticity and is longer than related isolated systems.