Cracking Open a New Channel Family

Cracking Open a New Channel Family Michael CahalanCourtesy of Karinne Cahalan What lessons can hearing-channel researchers learn from a similar but ultimately successful search? By Kerry Grens Related Articles 1-3 Orai is a four-transmembrane protein with high calcium selectivity that interacts with a calcium sensor called Stim to mediate calcium influx. CRAC bears "no channel homology, obviously, [and] no classical pore sequence,

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Kerry Grens

Kerry served as The Scientist’s news director until 2021. Before joining The Scientist in 2013, she was a stringer for Reuters Health, the senior health and science reporter at...

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Nov 1, 2007

Cracking Open a New Channel Family

Michael Cahalan
Courtesy of Karinne Cahalan

What lessons can hearing-channel researchers learn from a similar but ultimately successful search?

By Kerry Grens

Related Articles

1-3 Orai is a four-transmembrane protein with high calcium selectivity that interacts with a calcium sensor called Stim to mediate calcium influx.

CRAC bears "no channel homology, obviously, [and] no classical pore sequence," which partially explains why identifying it was such a challenge, says James Putney at the National Institute of Environmental Health. Knowing this, Fettiplace says that as far as the transduction channel goes, there's a "good possibility this is a channel that's not been characterized before."

With mutant screens for hearing defects in humans and model organisms underway, as well as attempts to develop RNA interference in hair cells, perhaps another channel family might soon emerge. Still, one key to interference screens has yet evaded hair cell researchers:...

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