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The receptor concept: prejudice, prediction, and paradox
Advances in Experimental Medicine and Biology
|January 1, 1978
Summary
Understanding hormone and neurotransmitter receptors is advancing. The critical "coupling problem" of how activated receptors initiate action may involve metals as triggers, potentially reviving older concepts.
Area of Science:
- Biochemistry
- Molecular Biology
- Pharmacology
Background:
- Significant progress in identifying hormone and neurotransmitter receptors as homogenous proteins.
- Current understanding and technology allow for detailed chemical and structural analysis of these macromolecular units.
Purpose of the Study:
- To address the critical "coupling problem": how occupied and activated receptors initiate cellular action.
- To explore novel concepts and techniques beyond structural analysis for understanding receptor function.
Main Methods:
- Conceptual discussion and hypothesis generation regarding the role of metals in receptor activation.
- Analysis of existing knowledge on steroid hormone receptor complexes.
Main Results:
- Proposes that metals coordinated to hormone-receptor complexes may act as triggers, binary switching the system between active and inactive states.
- Highlights a conceptual gap in understanding the mechanism of receptor-mediated signal transduction.
Conclusions:
- The involvement of metals in the hormone coupling process is a plausible, though not yet proven, hypothesis.
- Further research is needed to elucidate the precise role of metals, if any, in initiating receptor-mediated action.
- This exploration may lead to a rediscovery of fundamental principles in receptor theory.
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