title: Moving forward: mechanisms of chemoattractant gradient sensing.
abstract: Cells use an internal compass to sense the direction of chemoattractant gradients. This is used to bias pseudopod extension at the front of the cell and to orient cell polarization. Recent studies have highlighted the important roles played by phosphoinositide-3,4,5-triphosphate and small G proteins, but many questions remain.
authors.affiliation: Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Franca-Koh
authors.forename: Peter N
authors.initials: PN
authors.lastname: Devreotes
mesh_terms: D000818:Animals; D002465:Cell Movement / Q000502:physiology*; D002630:Chemotactic Factors; D004023:Dictyostelium / Q000502:physiology*; D011554:Pseudopodia / Q000502:physiology*
chemical_list: D002630:Chemotactic Factors