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Cited by 352

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Protein kinase A is a common negative regulator of Hedgehog signaling in the vertebrate embryo.

Open access
Hammerschmidt, M, Bitgood, M J, McMahon, A P·1996·Genes & Development

Abstract

Midline signaling by Hedgehog (Hh) family members has been implicated in patterning the vertebrate embryo. We have explored the potential regulatory role of cAMP-dependent protein kinase A (PKA) in these events. Zebrafish embryos injected with RNAs encoding Sonic hedgehog (Shh), Indian hedgehog (Ihh), or a dominant-negative regulatory subunit of PKA, PKI, have equivalent phenotypes. These include the expansion of proximal fates in the eye, ventral fates in the brain, and adaxial fates in somites and head mesenchyme. Moreover, ectopic expression of PKI partially rescues somite and optic stalk defects in no tail and cyclops mutants that lack midline structures that normally synthesize Shh. Conversely, all cell types promoted by ectopic expression of hhs and PKI are suppressed in embryos injected with RNA encoding a constitutively active catalytic subunit of PKA (PKA*). These results, together with epistasis studies on the block of ectopic Hh signaling by PKA*, indicate that PKA acts in target cells as a common negative regulator of Hedgehog signaling.

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Metadata

Authors
Hammerschmidt, M., Bitgood, M. J., & McMahon, A. P.
Venue
Genes & Development
Published
1996-03-15
Volume
10
Issue
6
Pages
647-658
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W1999100324
Cited by
352
References
2
Type
posted content
Language
en
Open access
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CoChat. (2026). Citation check: Protein kinase A is a common negative regulator of Hedgehog signaling in the vertebrate embryo. https://app.cochat.ai/papers/10.1101/gad.10.6.647
The paper
Hammerschmidt, M., Bitgood, M. J., & McMahon, A. P. (1996). Protein kinase A is a common negative regulator of Hedgehog signaling in the vertebrate embryo. Genes & Development. https://doi.org/10.1101/gad.10.6.647

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