Date published: 2026-5-7

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BCKDHB Inhibitors

The chemical class of BCKDHB Inhibitors refers to a range of compounds that interact with the BCKDC complex or the metabolic pathway of branched-chain amino acids. These compounds either mimic the substrates of BCKDHB, alter the levels of substrates or products in the metabolic pathway BCKDHB is involved in, or affect the regulation of the complex's activity through indirect means. The first group of inhibitors, such as 2-Oxoisovaleric acid and BCKDHB Inhibitors, as a chemical class, are not well-defined due to the scarcity of direct inhibitors. However, the chemicals that can influence the BCKDHB enzyme activity do so through various mechanisms, impacting the broader metabolic pathway of branched-chain amino acids or the BCKDC complex itself.

These inhibitors range from competitive inhibitors like 2-Oxoisovaleric acid and 3-Methyl-2-oxovaleric acid, which directly compete with the natural substrates of BCKDHB, to compounds that indirectly modulate the enzyme's activity through different mechanisms. For example, Phenylbutyrate can reduce the levels of branched-chain amino acids, thereby indirectly affecting the enzyme's substrate availability. Gabapentin and Valproic Acid, although not direct inhibitors, can alter branched-chain amino acid metabolism and thus may impact BCKDHB functionThe chemical class of BCKDHB inhibitors encompasses a diverse array of compounds. These inhibitors work through different mechanisms, either by directly competing with the enzyme's natural substrates, by altering the enzyme's substrate or product levels, or by affecting the enzyme's regulation and activity through changes in related metabolic or signaling pathways.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Gabapentin

60142-96-3sc-201481
sc-201481A
sc-201481B
20 mg
100 mg
1 g
$53.00
$94.00
$135.00
7
(1)

Although primarily known for its action on GABA receptors, gabapentin has been observed to alter amino acid metabolism and could therefore influence BCKDHB function indirectly by modifying substrate availability or related metabolic pathways.

Valproic Acid

99-66-1sc-213144
10 g
$87.00
9
(1)

Valproic Acid can affect branched-chain amino acid metabolism, possibly leading to reduced activity of the BCKDC complex by altering the intracellular environment in which BCKDHB operates.

L-Carnitine

541-15-1sc-205727
sc-205727A
sc-205727B
sc-205727C
1 g
5 g
100 g
250 g
$23.00
$34.00
$79.00
$179.00
3
(1)

L-Carnitine supplementation has been associated with changes in amino acid metabolism, which might affect the BCKDC complex activity by influencing the mitochondrial uptake of acyl groups and possibly the utilization of substrates relevant to BCKDHB.

L-Leucine

61-90-5sc-364173
sc-364173A
25 g
100 g
$21.00
$62.00
(0)

Excess leucine can lead to feedback inhibition of the BCKDC complex, thereby reducing the activity of BCKDHB by increasing the concentration of its product, which can act as an inhibitor.

Isovaleric acid

503-74-2sc-250205
100 ml
$29.00
(0)

Isovaleric acid, an organic compound, can indirectly affect BCKDHB by providing alternative metabolic pathways for branched-chain amino acid catabolism, potentially modulating the enzyme's activity through substrate diversion.

Rapamycin

53123-88-9sc-3504
sc-3504A
sc-3504B
1 mg
5 mg
25 mg
$63.00
$158.00
$326.00
233
(4)

An inhibitor of the mTOR pathway, which is involved in the regulation of protein synthesis and amino acid metabolism. By inhibiting mTOR, rapamycin can indirectly affect the regulation of BCKDHB by altering upstream signaling that controls protein turnover.

AICAR

2627-69-2sc-200659
sc-200659A
sc-200659B
50 mg
250 mg
1 g
$65.00
$280.00
$400.00
48
(2)

An activator of AMP-activated protein kinase (AMPK) that can influence energy metabolism. Through its action on AMPK, AICAR can alter the cellular energy state, which might indirectly affect the activity of BCKDHB by modulating the energy-dependent catabolism of amino acids.

Sodium dichloroacetate

2156-56-1sc-203275
sc-203275A
10 g
50 g
$55.00
$209.00
6
(1)

DCA can activate the pyruvate dehydrogenase complex (PDC) and could indirectly affect BCKDHB by altering the balance of acyl-CoA species in the mitochondria, potentially influencing the metabolic flux through BCKDHB.