Science - December 2 2005.pdf

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2 December 2005
Vol. 310 No. 5753
Pages 1373–1568 $10
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MICRORNA LABELING
IT’S SCIENCE IN SUPERDRIVE
SUPERIOR SENSITIVITY
for miRNA Detection
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GE Healthcare
Greater flexibility and binding
capacity in histidine-tagged
protein purification
Ni Sepharose products from GE Healthcare give you the greatest binding capacity available
for histidine-tagged protein purification. They offer the flexibility to use a variety of formats
and protocols, ensuring the highest possible purity. And with our His GraviTrap and
HisTrap FF crude columns, you can now get pure histidine-tagged proteins directly from
unclarified lysate in just 30 minutes.
Maximum target protein activity is assured with Ni Sepharose, thanks to its tolerance of a
wide range of additives and negligible nickel ion leakage. With up to four times the capacity
of competing products, dramatically increasing your yield while saving on time and
resin/buffer costs is no longer pure imagination.
© 2005 General Electric Company - All rights reserved.
Amersham Biosciences AB, a General Electric company,
going to market as GE Healthcare.
GE18-05
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S PECIAL I SSUE
G ETTING A CROSS THE M EMBRANE
A variety of proteinaceous pores translocate ions, proteins, and DNA across cell mem-
branes. A special section in this issue looks at how they accomplish this essential task.
[Image: Chris Bickel]
Volume 310
2 December 2005
Number 5753
I NTRODUCTION
R EVIEWS
1452
1461
For related online content in STKE
see page 1383 or go to
1456
I. Chen, P. J. Christie, D. Dubnau
D EPARTMENTS
N EWS F OCUS
1383
1410
Winning the War Against Island Invaders
1385
1389
Bullish on Particles
1414
String Theory Meets Practice as Violinmakers
Rethink Their Craft
1391
1396
1417
The Congressman With His Hand on Science’s
Purse Strings
1401
1517
1526
1418
Best Archaeopteryx Fossil So Far Ruffles
a Few Feathers
related Report page 1483
N EWS OF THE W EEK
1402
Korean Cloner Admits Lying
About Oocyte Donations
1421
L ETTERS
1403
The Atlantic Conveyor
May Have Slowed, But Don’t Panic Yet
1425
R. Ansbacher; A. J. Ammann; W. R. Tracey . Response
J. Avorn. Invariant Ratios Vs. Dimensionless Ratios
M. Mangel. Worldwide Decline of Sturgeons
D. E. Lorke and D. T. Yew
1405
Animal Rules Keep Grad Students
Out of the Lab
1429
1405
1406
Congress Tells DOE to Take Fresh Look at
Recycling Spent Reactor Fuel
B OOKS ET AL .
1432
Return to Wild America
A Yearlong Search for the Continent’s Natural Soul
S. Weidensaul, reviewed by J. Greenberg
1407
NIEHS Journal Is on the Block
1407
Universities Must Pay to Play in
Ph.D. Program Rankings
1433
In the Company of Crows and Ravens
J. M. Marzluff and T. Angell, reviewed by J. Dally
1409
Fuel Shortage Imperils
Asteroid-Sampling Mission
E SSAY
1435
Following the Light: Opening Doors
to Science in Tunisia
Z. B. Lakhdar
1409
Talk on ‘Underground’ Bird Flu Deaths
Rattles Experts
1377
SCIENCE
VOL 310
2 DECEMBER 2005
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