Abstract
Hedgehog and Wnt family proteins can act as classic developmental morphogens to pattern a field of nai;ve cells. Surprising new studies show that members of these same protein families also act as guidance cues for growing axons in the developing nervous system.
MeSH terms
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Animals
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Axons / metabolism*
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Bone Morphogenetic Proteins / metabolism
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Drosophila / embryology*
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Drosophila Proteins / metabolism*
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Hedgehog Proteins
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Morphogenesis
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Proto-Oncogene Proteins / metabolism*
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Trans-Activators / metabolism
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Wnt Proteins
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Zebrafish Proteins*
Substances
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Bone Morphogenetic Proteins
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Drosophila Proteins
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Hedgehog Proteins
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Proto-Oncogene Proteins
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Trans-Activators
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Wnt Proteins
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Zebrafish Proteins
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hh protein, Drosophila