Leonard

Leonard R. Stephens

#150,065
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British scientist

Leonard R. Stephens's Academic­Influence.com Rankings

Leonard R. Stephens
Chemistry
#5065
World Rank
#6173
Historical Rank
Organic Chemistry
#852
World Rank
#953
Historical Rank
chemistry Degrees
Leonard R. Stephens
Mathematics
#7597
World Rank
#10299
Historical Rank
Number Theory
#259
World Rank
#328
Historical Rank
Measure Theory
#2322
World Rank
#2777
Historical Rank
mathematics Degrees
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  • Chemistry
  • Mathematics

Leonard R. Stephens's Degrees

Why Is Leonard R. Stephens Influential?

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According to Wikipedia, Leonard R Stephens FRS is a molecular biologist, senior group leader and associate director at the Babraham Institute. Len Stephens has contributed much to the understanding of inositol lipids functions in eukaryotic cells, and in particular in neutrophils. Early highlights were the mapping of new pathways of inositol phosphate synthesis. Together with his long-time collaborator Phillip Thomas Hawkins, he established that PtdInsP2 is the main substrate of receptor-controlled Type 1 phosphoinositide 3-kinases , thus identifying PtdInsP3 as the key output signal produced by this enzyme. They identified and isolated the GPCR-activated Type 1B PI3K and, in a sustained body of work, defined its structure, explained its complex pattern of regulation by GβΥ and Ras, and proved its role in inflammatory events in vivo. They – in parallel with Dario Alessi – identified phosphoinositide-dependent kinase-1 as the PtdInsP3-activated link between PI3K-1 activation and protein kinase B activation, a key pathway through which PtdInsP3 formation regulates cell proliferation and survival. Later, they showed that PtdInsP3 was responsible for the recruitment of both PKB and PDK1 to the membrane, and therefore the activation of the former by the latter.

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Leonard R. Stephens's Published Works

Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
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What Schools Are Affiliated With Leonard R. Stephens?

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