Contents
Vol 309, Issue 5731
Special Issue
125th Anniversary
Introduction to special issue
News
Contents
This Week in Science
Editorial
Editors' Choice
NetWatch
Products & Materials
News of the Week
ScienceScope
Random Samples
News Focus
Letters
Books
Essays on Science and Society
Policy Forum
Perspectives
Brevia
- Genome Analysis Reveals Pili in Group B Streptococcus
Long thin pili, previously overlooked,extend from the surface of certain disease-causing bacteria and are required for pathogenesis.
Reports
- Discovery of Pulsed OH Maser Emission Stimulated by a Pulsar
Photons from a pulsar stimulate episodic laser emission from an interstellar molecular cloud, providing a new means to probe cloud density and dynamics.
- A High-Pressure Structure in Curium Linked to Magnetism
Under high pressure, curium forms a phase that is stabilized by magnetic correlations in its f electron shell, analogous to iron and copper phases stabilized by d electrons.
- On-Wire Lithography
Gaps as small as 5 nanometers, useful for trapping molecules or affecting wire properties, can be etched into one side of a bimetallic nanowire, with the other side stabilizing the gap.
- Atlantic Ocean Forcing of North American and European Summer Climate
Climate model results indicate that decadal variations in the circulation of the Atlantic Ocean have a dominant influence on summer climates of North America and western Europe.
- GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin
A detailed hydrogen isotope record from a Greenland ice core helps reveal how the distribution of sea ice and thus moisture sources contribute to rapid climate changes.
- A Magnetic Nanoprobe Technology for Detecting Molecular Interactions in Live Cells
Magnetic nanoparticles coupled to small-molecule probes are taken up by living cells and can be used to detect target proteins and activation of signaling pathways.
- Cell-to-Cell Transfer of Bacterial Outer Membrane Lipoproteins
Membrane proteins can be directly exchanged among bacteria, leading to correction of motility defects in mutant strains.
- Ubiquitination on Nonlysine Residues by a Viral E3 Ubiquitin Ligase
The peptide tags that mark proteins for degradation can be attached to cysteine residues in addition to the well-known lysine attachment sites.
- Genome of the Host-Cell Transforming Parasite Theileria annulata Compared with T. parva
Two parasitic protozoans that cause tick-borne disease in cattle and man unexpectedly carry no obvious genes that account for their ability to transform host lymphocytes.
- Genome Sequence of Theileria parva, a Bovine Pathogen That Transforms Lymphocytes
Two parasitic protozoans that cause tick-borne disease in cattle and man unexpectedly carry no obvious genes that account for their ability to transform host lymphocytes.
- Long-Term Monitoring of Bacteria Undergoing Programmed Population Control in a Microchemostat
A small population of floating bacteria genetically engineered to regulate their own density can be maintained and thereby studied in a microfluidic culture system.
- Variable Control of Ets-1 DNA Binding by Multiple Phosphates in an Unstructured Region
Variable phosphorylation on a flexible region of a transcription factor acts as a rheostat to regulate DNA binding by gradually shifting the equilibrium between high and low affinity states.
- Effects of Landscape Corridors on Seed Dispersal by Birds
Eastern Bluebirds carry more seeds between connected forest patches than between isolated patches, demonstrating the importance of corridors in landscape models of seed dispersal.
- Identification of a Universal Group B Streptococcus Vaccine by Multiple Genome Screen
A broadly specific vaccine for strep was developed by using many strains of the bacteria to select the target antigens, potentially replacing the need for multiple vaccines.
Technical Comments
