منابع مشابه
Gene Amplification: Yeast Takes a Turn
The origins of gene amplifications in mammalian cells have been difficult to analyze because of secondary genome rearrangements. Recent studies in budding yeast, including in this issue of Cell, have provided new insights into the role of palindromic sequences in gene amplification.
متن کاملActin Dynamics: Cell Migration Takes a New Turn with Arpin
Accurate cell migration requires intricate control over the actin cytoskeleton. Recent work has identified an Arp2/3-interacting protein called Arpin, which restricts the rate of actin polymerization and is the latest component in the steadily expanding protein repertoire that controls cell migration.
متن کاملMechanism of Gene Amplification via Yeast Autonomously Replicating Sequences
The present investigation was aimed at understanding the molecular mechanism of gene amplification. Interplay of fragile sites in promoting gene amplification was also elucidated. The amplification promoting sequences were chosen from the Saccharomyces cerevisiae ARS, 5S rRNA regions of Plantago ovata and P. lagopus, proposed sites of replication pausing at Ste20 gene locus of S. cerevisiae, an...
متن کاملSignal Amplification: Let's Turn Down The Lights
G protein activation by membrane-bound receptors initiates a chain reaction that amplifies cellular responses to external signals. In retinal photoreceptors, amplification by the phototransduction cascade is regulated by quickly switching off the visual pigment that acts as the receptor for light.
متن کاملThe time it takes to turn a memory into a template.
Visual search is typically guided by goals that are set within working memory. By varying the stimulus onset asynchrony (SOA) between a visual stimulus describing the target and the search display containing that target, previous studies have estimated how long it takes to implement such an attentional set. Here we investigate how long it takes to turn a visual memory representation (rather tha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cell
سال: 2006
ISSN: 0092-8674
DOI: 10.1016/j.cell.2006.06.012