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Development. 2006 Aug;133(16):3055-61.

How does cholesterol affect the way Hedgehog works?

Author information

1
MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London NW7 1AA, UK.

Abstract

Members of the Hedgehog (Hh) family of proteins are conserved morphogens that spread and modulate cell fates in target tissue. Mature Hh carries two lipid adducts, a palmitoyl group at the N terminus and cholesterol at the C terminus. Recent findings have addressed how these lipid modifications affect the function and transport of Hh in Drosophila. In contrast to the palmitoyl adduct, cholesterol appears not to be essential for signalling. However, the absence of the cholesterol adduct affects the spread of Hh within tissues. As we discuss here, the exact nature of this effect is controversial.

PMID:
16873581
DOI:
10.1242/dev.02472
[Indexed for MEDLINE]
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