A genome-organizing protein that is present only in the olfactory system of mice has been found to orchestrate changes in the relative numbers of different odor-sensing neurons on the basis of how active these neurons are.

A mathematical model based on enzyme kinetics shows how the relationships between life expectancy, survival rates for children and adults, and national income change over time.

The plant hormone ethylene regulates the expression of multiple genes in the model plant Arabidopsis, including those that respond to other hormones.

Efflux of xenobiotic fluoride from microorganisms occurs through a novel family of ion channels with stringent selectivity for fluoride ion and dual-topology molecular architecture.

Two cooperative populations of yeast cells that cannot distinguish between cooperative partners and cheating intruders can still self-organize into clusters that exclude cheaters.

The probability of a cellular response to a differentiation inducing signal is correlated with the dynamic expression of a Ras protein, and produces a ‘salt and pepper’ pattern of cell differentiation.

The differentiation decisions made by pluripotent cells depend on their exposure to appropriate extrinsic signals and also on morphogenetic events that control receptivity to those differentiation cues.

Real time measurements of c-di-GMP in individual cells reveal an unexpected mechanism by which the chemotaxis machinery controls c-di-GMP heterogeneity, thereby regulating flagellar-based motility.

Quantitative analysis of protein and mRNA expression across a minimally perturbed cell cycle in human myeloid cells has identified myeloid-specific and cell cycle-regulated gene expression, including examples of isoform- and phosphorylation-specific regulation, with all data made available in a searchable, online database.