Questions tagged [receptor]

A receptor is a molecular target for a chemical signal such as a neurotransmitter, hormone, or drug. Binding of the signal to the receptor initiates or modulates behaviour in the receiving cell.

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Are single-celled organisms capable of learning?

I've read that the amoeba is capable of learning. Since these protists have no nervous system, it's safe to assume that even highly simplified learning mechanisms of the Aplysia are miles off in the ...
jonsca's user avatar
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Why is ACE2 not used as drug against covid? [closed]

Can ACE2 be produced and used as drug against covid? I read it is the receptor molecule. If it is in the organism the virus should bind to it and could not attack cells anymore? Is that right?
Mercury's user avatar
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Do serotonergic (5-HT2A-mediated) psychedelics elicit stimulant effects?

I know that 5-HT2A partial agonism is the key mechanism of action of serotonergic psychedelics but I also know that some research (e.g. the selective (no activity on any other known receptor sites) 5-...
Josh Pinto's user avatar
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Why are skin tactile receptors considered to be phasic receptors?

A phasic receptor by definition is one that quickly adapts to change. In terms of neuron firing, this means that it does not trigger another firing because the receptors are used to the stimulus. But ...
Fraïssé's user avatar
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2 votes
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How long does it take for a blocked dopamine receptor to be broken down by the body?

Do the blocked dopamine receptors get broken down by the body and if so how often ? In other words how long does it take for the dopamine receptors blocked by irreversible dopamine antagonists to ...
user57928's user avatar
2 votes
0 answers
146 views

Protein/ligand affinity databases?

Is there any database that contain binding affinities reported in litterature for different proteins and ligands? I have checked uniprot already and it does not seem to included any binding affinity ...
Jeppe Nielsen's user avatar