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Stem cells to the fore again

By | June 21, 2002

Two papers show promise for adult stem cells and for mouse ES cells in an animal model of Parkinson's disease.

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Operons in worms

By | June 20, 2002

Operons contain multiple adjacent genes whose transcription is regulated by the transcription of a single polycistronic message. The processing of polycistronic pre-mRNA involves 3' end formation and trans-splicing by the specialized SL2 small nuclear ribonucleoprotein particle. In the June 20 Nature, Thomas Blumenthal and colleagues describe a screen for SL2-containing mRNAs in the Caenorhabditis elegans genome (Nature 2002, 417:851-854).Blumenthal et al. used a probe enriched for SL2-containin

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Ripening on the vine

By | June 20, 2002

Polyamines play an important role in fruit ripening by enhancing phytonutrient content, juice quality and vine life.

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A better map of the human genome

By | June 19, 2002

A new map of the human genome has five times higher resolution than previous maps.

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Bending: the rule for IgE

By | June 19, 2002

IgE has an asymmetrically bent conformation that may explain its unique binding kinetics and ability to cause persistent allergic sensitization.

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Cloning ban delayed

By | June 19, 2002

Senator Brownback falters in his latest attempt to regulate human cloning; vote now unlikely before end of year.

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Institutional ethics committees needed

By | June 19, 2002

A seminar this week will call for ethics panels to vet all substantial funding donations, to protect the reputation of academic institutions.

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Obesity signaling pathway

By | June 19, 2002

Inhibition of gastric inhibitory polypeptide signaling prevents obesity in mice.

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LAT signals in T cells

By | June 18, 2002

Blocking LAT signaling by a single tyrosine mutation inhibits T cell development but induces lymphoproliferation.

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Search for a safer smallpox vaccine

By | June 18, 2002

As US officials decide who should get the smallpox vaccine, there's new emphasis on developing a safer vaccine.

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