What question did this study set out to answer?

This research aims to understand how the RII subunit of cAMP-dependent protein kinase interacts with RII-anchoring proteins through specific structural motifs.

August 1, 1991Journal of Biological ChemistryOpen Access

Interaction of the regulatory subunit (RII) of cAMP-dependent protein kinase with RII-anchoring proteins occurs through an amphipathic helix binding motif

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Authors

DCD.W. CarrOregon Health & Science University RSR.E. Stofko-HahnOregon Health & Science University IFIain D. C. FraserNational Institutes of Health

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Implication

Randomized trial demonstrates the binding interaction of the RII subunit with anchoring proteins, indicating a crucial role in protein localization.

Key Points

This research aims to understand how the RII subunit of cAMP-dependent protein kinase interacts with RII-anchoring proteins through specific structural motifs.
Performed computer-aided analysis of secondary structure on four RII-anchoring protein sequences.
Identified a common amphipathic helix binding motif across the protein sequences analyzed.
Conducted site-directed mutagenesis to evaluate effects on RII alpha binding.
The amphipathic helix region of Ht 31 binds effectively to RII alpha.
Mutations in critical positions (Ala-498, Ile-502, Ile-507) significantly reduce RII alpha binding.
Mutations outside the predicted binding region, such as Ala-522 to proline, do not affect RII alpha binding.

Cite This Study

Carr et al. (1991) studied this question.

synapsesocial.com/papers/6a63f7e07ff024ad2838581f https://doi.org/10.1016/s0021-9258(18)98665-5

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Implication

Randomized trial demonstrates the binding interaction of the RII subunit with anchoring proteins, indicating a crucial role in protein localization.

Interaction of the regulatory subunit (RII) of cAMP-dependent protein kinase with RII-anchoring proteins occurs through an amphipathic helix binding motif

Discussion

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Implication

Key Points

Cite This Study

Interaction of the regulatory subunit (RII) of cAMP-dependent protein kinase with RII-anchoring proteins occurs through an amphipathic helix binding motif

Discussion

Member takes

Implication

Key Points

Cite This Study

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