ebi-chebi / ChEBI

Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on ‘small’ chemical compounds.
https://www.ebi.ac.uk/chebi
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NTR: activator #4368

Closed cthoyt closed 1 year ago

cthoyt commented 1 year ago

As an opposite to inhibitor (CHEBI:35222), I think it would be good to have a term for activator.

The definition for inhibitor is

A substance that diminishes the rate of a chemical reaction.

Therefore, a similar definition for activator could be

A substance that increases the rate of a chemical reaction.

The parent term for activator should be effector (CHEBI:35224).

Some example terms that are activators:

CURIE Label Notes
CHEBI:77324 UDP-glucuronosyltransferase activator
CHEBI:91189 VEGF activator
CHEBI:71033 carbamylphosphate synthetase I
CHEBI:90374 histone acetyltransferase activator
CHEBI:73966 nitric oxide synthase activator
CHEBI:77731 p53 activator
CHEBI:76022 soluble guanylate cyclase activator
CHEBI:85053 EC 2.7.11.31 {[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} activator
CHEBI:50912 cardiotoxic agent Activates cardiotoxicity process, also arguable
CHEBI:50927 angiogenesis inducing agent There could be a case made that an inducer isn't the same as an activator
CHEBI:68495 apoptosis inducer see previous row comment
CHEBI:72571 pro-angiogenic agent Activates angiogenesis
amalik01 commented 1 year ago

A new term for activator (CHEBI:195251) has now been created.

cthoyt commented 1 year ago

Woohoo! Thanks @amalik01. Should we close this issue then?

amalik01 commented 1 year ago

I have given activators the parent term 'biological role' instead of 'effector'.

Effectors are compounds which usually bind to the allosteric binding site of a protein so this may not hold true for all activators as some may even bind to the substrate binding site and still activate the enzyme.

cthoyt commented 1 year ago

I saw, maybe you can imagine a new term that can be a parent to both activator/inhibitor that gives some insight into them being generic "regulators"?

for example, a compound might be known to have an effect but not in what direction