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Tag: "rotation" at biology news

The connector rotation hypothesis? Phage do not pack their DNA by rotation

...led the connector. Scientists have speculated that rotation of the connector complex might feed the DNA into t...they pack their DNA to directly test the connector rotation hypothesis. They found that it is more than likely not the mechanism by which the DNA is packed. The...

Scientists reveal structure of gateways to gene control

...se pairs apart, which exactly matches the periodic rotation of the DNA double helix. "It is striking how well these positions match with the architecture of the DNA as it wraps around the nucleosome's protein core," Pugh said. This result powerfully simplifies previous theories about the possible architec...

Two nerve cells in direct contact

...hen strongly stimulated) and tested sensitivity to rotation in the H2 cell. A long series of these technically...l CH cell was destroyed, no effect was seen on the rotation sensitivity of the H2 cell. However, if the contralateral HSE cell was removed from the circuit, the...

NHGRI aims to make DNA sequencing faster, more cost effective

...constructed that yield a signal independent of the rotation of the DNA molecule relative to the electrodes. Jens Gundlach, Ph.D., University of Washington, Seattle,$605,000 (2 years),"Engineering MspA for Nanopore Sequencing" The passage of single-strand DNA through a nanometer-scale pore is driven by an...

New technique helps researchers determine amino-acid charge

...ndings also discounted a long-held theory that the rotation of the pore-lining helices underlie the mechanism ...hannel. The data, Grosman said, indicate that such rotation is minimal, if any. ...

Recreating 'Flowers for Algernon' with a happy ending

...ar in UCLA's MD/PhD program, learned in a clinical rotation about statins, the drugs already prescribed to millions of people worldwide to lower cholesterol. "Steve raced into my lab and shared what he'd learned: statins work on the Ras protein that is altered by NF1 and play a key role in learning and me...

Organic farms produce same yields as conventional farms

... organic legume-based farm (that used a three-year rotation of hairy vetch/corn and rye/soybeans and wheat). The two organic systems received no chemical fertilizers or pesticides. Inter-institutional collaboration included Rodale Institute agronomists Paul Hepperly and Rita Seidel, U.S. Department of Agricu...

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