Date published: 2026-3-14

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GFP Inhibitors

GFP inhibitors belong to a chemical class that specifically targets and interacts with green fluorescent protein (GFP). GFP is a naturally occurring protein found in the jellyfish Aequorea victoria, and it possesses a unique property of emitting green fluorescence when exposed to certain wavelengths of light. This characteristic has made GFP a valuable tool in various scientific disciplines, including molecular biology and biochemistry, as it allows researchers to track and visualize specific proteins and cellular processes within living organisms. GFP inhibitors are chemical compounds that are designed to selectively bind to GFP, thereby interfering with its normal function. These inhibitors work by either directly blocking the active site of GFP or altering its structural conformation, preventing the protein from exhibiting its characteristic fluorescence. By inhibiting GFP, these compounds can be employed to modulate and control the fluorescent signal emitted by GFP-tagged proteins, providing researchers with a means to manipulate and investigate cellular processes in a controlled manner.

The development and utilization of GFP inhibitors have revolutionized the field of biological imaging and fluorescence microscopy. By selectively inhibiting GFP fluorescence, researchers can effectively turn off the signal and assess the contribution of specific proteins or pathways to cellular function. This approach enables the study of protein-protein interactions, intracellular localization, and dynamic changes in protein expression or activity over time. Moreover, GFP inhibitors have found applications beyond basic research, such as in high-throughput screening assays, where they are used to identify and characterize novel compounds with biological activity. In conclusion, GFP inhibitors represent a chemical class that selectively targets and modulates the fluorescence emitted by GFP. By interfering with the function of this naturally occurring protein, these compounds offer a powerful tool for controlling and investigating cellular processes, providing researchers with invaluable insights into the intricacies of molecular biology and biochemistry.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Acridine Orange solution

65-61-2sc-473594
10 ml
$166.00
2
(0)

Acridine Orange is a small molecule that can bind to GFP and inhibit its fluorescence. It intercalates into the GFP chromophore region, disrupting the proper folding and conformation of GFP and thereby preventing fluorescence.

Brefeldin A

20350-15-6sc-200861C
sc-200861
sc-200861A
sc-200861B
1 mg
5 mg
25 mg
100 mg
$31.00
$53.00
$124.00
$374.00
25
(3)

Brefeldin A is a natural product found in certain fungi. It is known to inhibit the transport of proteins within cells. In addition to its primary mechanism of action, Brefeldin A has also been shown to inhibit GFP fluorescence by interfering with the proper folding and maturation of GFP.

N-Ethylmaleimide

128-53-0sc-202719A
sc-202719
sc-202719B
sc-202719C
sc-202719D
1 g
5 g
25 g
100 g
250 g
$22.00
$69.00
$214.00
$796.00
$1918.00
19
(1)

NEM is a sulfhydryl alkylating agent that is commonly used to block cysteine residues in proteins. It can react with the cysteine residues present in GFP, leading to the inhibition of GFP fluorescence.

Guanidine Hydrochloride

50-01-1sc-202637
sc-202637A
sc-202637B
100 g
1 kg
25 kg
$61.00
$310.00

1
(2)

Guanidine hydrochloride is a strong denaturing agent that disrupts the structure of proteins. It can be used to unfold GFP and inhibit its fluorescence by interfering with the proper folding and chromophore formation.

Sodium azide

26628-22-8sc-208393
sc-208393B
sc-208393C
sc-208393D
sc-208393A
25 g
250 g
1 kg
2.5 kg
100 g
$43.00
$155.00
$393.00
$862.00
$90.00
8
(2)

Sodium azide is a commonly used inhibitor of mitochondrial electron transport. It can also inhibit GFP fluorescence by disrupting the conformation and folding of GFP.

Copper(II) sulfate

7758-98-7sc-211133
sc-211133A
sc-211133B
100 g
500 g
1 kg
$46.00
$122.00
$189.00
3
(1)

Copper (II) sulfate is a metal ion that can inhibit GFP fluorescence by binding to GFP and disrupting its structure. The binding of copper ions can prevent proper folding or interfere with the chromophore formation, leading to decreased fluorescence.

Phenylmethylsulfonyl Fluoride

329-98-6sc-3597
sc-3597A
1 g
100 g
$50.00
$697.00
92
(1)

PMSF is a serine protease inhibitor that is often used in protein purification to prevent proteolytic degradation. It can also inhibit GFP fluorescence by binding to GFP and interfering with its folding or chromophore formation.