Date published: 2026-5-16

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MRP-L49 Inhibitors

MRP-L49 inhibitors encompass a range of compounds that indirectly impede the functional capabilities of the protein by targeting mitochondrial biogenesis, protein synthesis, and overall mitochondrial health. Compounds like rotenone and antimycin A exert their inhibitory effects by disrupting the mitochondrial electron transport chain at different complexes, which is fundamental for maintaining the mitochondrial membrane potential, a driving force for ATP synthesis. The reduction in ATP generation can lead to a downstream effect on mitochondrial protein synthesis, where MRP-L49 plays a critical role. This could result in an impaired assembly of mitochondrial ribosomes and a subsequent decline in the synthesis of proteins that are essential for mitochondrial function. Other agents, such as chloramphenicol, linezolid, tetracycline, and erythromycin, target the mitochondrial ribosome directly, drawing on their primary action on bacterial ribosomes, to which mitochondrial ribosomes are evolutionarily related. By binding to the mitochondrial ribosome, these antibiotics can interfere with MRP-L49's role in protein translation within the mitochondria, leading to a malfunction in this organelle's protein synthesis machinery. Similarly, oligomycin's inhibition of ATP synthase and actinonin's inhibition of peptide deformylase affect the energy-dependent process of mitochondrial protein maturation, which indirectly impacts the function of MRP-L49. Moreover, compounds that affect overall cell health and proliferation, such as venetoclax and rapamycin, contribute to the reduction of mitochondrial demand and biogenesis, respectively, which may lead to a decrease in the functional necessity for MRP-L49.

Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Rotenone

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

Rotenone is an inhibitor of mitochondrial electron transport at complex I. MRP-L49, being a mitochondrial ribosomal protein, is implicated in mitochondrial protein synthesis. Impaired electron transport can reduce the membrane potential, indirectly affecting the translation of mitochondrial-encoded proteins, thus inhibiting MRP-L49 function.

Antimycin A

1397-94-0sc-202467
sc-202467A
sc-202467B
sc-202467C
5 mg
10 mg
1 g
3 g
$55.00
$63.00
$1675.00
$4692.00
51
(1)

Antimycin A inhibits the mitochondrial electron transport chain at complex III. This disruption leads to decreased ATP production and can cause a downregulation of mitochondrial protein synthesis, thereby indirectly inhibiting MRP-L49's role in mitochondrial ribosomal function.

Chloramphenicol

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

Chloramphenicol is known to inhibit bacterial protein synthesis. Given the similarities between bacterial ribosomes and mitochondrial ribosomes, chloramphenicol can inhibit mitochondrial protein synthesis, affecting MRP-L49's function in the mitochondrial ribosome.

Tetracycline

60-54-8sc-205858
sc-205858A
sc-205858B
sc-205858C
sc-205858D
10 g
25 g
100 g
500 g
1 kg
$63.00
$94.00
$270.00
$417.00
$634.00
6
(1)

Tetracycline binds to the 30S subunit of bacterial ribosomes, and similarly, it can bind to the mitochondrial ribosome, potentially inhibiting MRP-L49's role in the assembly and function of the mitochondrial ribosome.

Oligomycin

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

Oligomycin inhibits ATP synthase, reducing ATP levels and thus can indirectly inhibit the energy-dependent process of mitochondrial protein synthesis where MRP-L49 functions.

Actinonin

13434-13-4sc-201289
sc-201289B
5 mg
10 mg
$170.00
$385.00
3
(1)

Actinonin is a peptide antibiotic that inhibits peptide deformylase, an enzyme involved in protein maturation in mitochondria. This can lead to a backlog of immature proteins, indirectly affecting MRP-L49's role in proper mitochondrial protein synthesis.

3′-Azido-3′-deoxythymidine

30516-87-1sc-203319
10 mg
$61.00
2
(1)

Zidovudine is a nucleoside analogue reverse transcriptase inhibitor that can incorporate into mitochondrial DNA, potentially causing mitochondrial toxicity and thereby indirectly inhibiting MRP-L49 by impairing mitochondrial protein synthesis.

α-Amanitin

23109-05-9sc-202440
sc-202440A
1 mg
5 mg
$269.00
$1050.00
26
(2)

α-Amanitin inhibits RNA polymerase II. While MRP-L49 is not directly involved in RNA synthesis, impaired transcription in the nucleus can indirectly affect the translation process in mitochondria where MRP-L49 is active.

Erythromycin

114-07-8sc-204742
sc-204742A
sc-204742B
sc-204742C
5 g
25 g
100 g
1 kg
$57.00
$245.00
$831.00
$1331.00
4
(3)

Erythromycin binds to the 50S subunit of bacterial ribosomes, and by analogy, it can affect the mitochondrial ribosome and inhibit MRP-L49's function in mitochondrial protein synthesis.

ABT-199

1257044-40-8sc-472284
sc-472284A
sc-472284B
sc-472284C
sc-472284D
1 mg
5 mg
10 mg
100 mg
3 g
$118.00
$337.00
$520.00
$832.00
$1632.00
10
(0)

ABT-199 is a Bcl-2 inhibitor that can induce apoptosis, potentially leading to a decrease in mitochondrial function and indirectly affecting MRP-L49 by reducing the demand for mitochondrial protein synthesis.