Date published: 2026-5-6

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NDUFA3 Inhibitors

Rotenone and Piericidin A serve as direct inhibitors of NDUFA3 by targeting its role within Complex I of the mitochondrial electron transport chain. These chemicals are highly specific, affecting the NADH:ubiquinone oxidoreductase activity which is crucial for oxidative phosphorylation. This inhibition leads to compromised cellular respiration and can disturb the energy balance within the cell. For example, Rotenone exerts its effects by hindering electron transfer from NADH to ubiquinone, a process in which NDUFA3 is integrally involved. This disruption impairs the formation of a proton gradient across the inner mitochondrial membrane, thereby affecting ATP synthesis. Likewise, Piericidin A also inhibits the NADH:ubiquinone oxidoreductase activity and has a similar impact on NDUFA3's function. The class of NDUFA3 inhibitors primarily includes chemicals that modulate the function of Complex I, either by disrupting the electron transfer mechanism or by interfering with the complex's assembly and stability. These chemicals are pivotal in biochemical research for understanding the nuances of mitochondrial function and cellular respiration. Their specificity for NDUFA3 arises from their targeted impact on Complex I's enzymatic activity. Moreover, these inhibitors serve as valuable tools for deciphering the roles of specific complex subunits like NDUFA3 in mitochondrial physiology. Their action can also elucidate interactions between Complex I and other cellular pathways, providing insights into the functional interplay of mitochondrial and cellular processes. With precise inhibition, these chemicals offer a focused approach to study the functional relevance of NDUFA3 in the context of Complex I and overall cellular energetics.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Rotenone

83-79-4sc-203242
sc-203242A
1 g
5 g
$89.00
$259.00
41
(2)

Rotenone is a complex I inhibitor that targets the NADH dehydrogenase complex. As NDUFA3 is a subunit of complex I, Rotenone can directly inhibit its function by hindering electron transfer from NADH to ubiquinone, thus compromising the efficiency of the electron transport chain.

Piericidin A

2738-64-9sc-202287
2 mg
$291.00
24
(1)

Piericidin A also inhibits the NADH:ubiquinone oxidoreductase activity of complex I. By doing so, it can inhibit the function of NDUFA3 as a part of the complex, leading to a decrease in the efficiency of oxidative phosphorylation.

Capsaicin

404-86-4sc-3577
sc-3577C
sc-3577D
sc-3577A
50 mg
250 mg
500 mg
1 g
$96.00
$160.00
$240.00
$405.00
26
(1)

Capsaicin is known to induce mitochondrial dysfunction and can affect complex I activity. It can inhibit NDUFA3 by affecting the electron transport chain and, consequently, impairing cellular respiration.

1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine, free base

28289-54-5sc-208657
25 mg
$430.00
5
(0)

MPP+ inhibits complex I and can lead to mitochondrial dysfunction. The chemical can impair the activity of NDUFA3 by inhibiting electron flow in the complex, causing disruption in the energy production pathways of the cell.

Coenzyme Q10

303-98-0sc-205262
sc-205262A
1 g
5 g
$71.00
$184.00
1
(1)

Although usually an electron carrier, in high concentrations, Coenzyme Q10 can act as an inhibitor by overwhelming the ubiquinone binding site in complex I, and thereby indirectly inhibit the activity of NDUFA3 in the electron transport chain.

Sunitinib, Free Base

557795-19-4sc-396319
sc-396319A
500 mg
5 g
$153.00
$938.00
5
(0)

Sunitinib, a tyrosine kinase inhibitor, has been observed to affect mitochondrial respiration and complex I activities. Therefore, it can affect the function of NDUFA3 by impairing the electron flow in the complex.

Deguelin

522-17-8sc-200657
sc-200657A
sc-200657B
5 mg
25 mg
500 mg
$83.00
$278.00
$1894.00
4
(1)

Deguelin inhibits NADH oxidase activity and is known for its potent inhibitory effect on complex I. This can impair the function of NDUFA3 by halting the electron transport activities within the complex.

Metformin

657-24-9sc-507370
10 mg
$79.00
2
(0)

Metformin can inhibit complex I and is known to reduce cellular respiration. Its inhibitory action affects the efficiency of the electron transport chain, including the function of NDUFA3 as a constituent of complex I.

Chloramphenicol

56-75-7sc-3594
25 g
$90.00
10
(1)

Chloramphenicol can inhibit mitochondrial protein synthesis, indirectly affecting complex I and thereby NDUFA3. It affects the incorporation of new subunits into the complex, thus impacting its function.

Oligomycin

1404-19-9sc-203342
sc-203342C
10 mg
1 g
$149.00
$12495.00
18
(2)

Although primarily a complex V inhibitor, Oligomycin can create a back-pressure in the electron transport chain, affecting complex I function. This can impair the activity of NDUFA3 by hindering the ability of complex I to pump protons effectively, thus inhibiting ATP synthesis.