Date published: 2025-9-5

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SIRT5 Inhibitors

The class of chemicals identified as SIRT5 inhibitors comprises compounds that primarily target sirtuin activity, either directly or indirectly. These inhibitors are characterized by their ability to interact with SIRT5, impeding its enzymatic activities, which include deacetylation, demalonylation, and desuccinylation. By doing so, they can modulate key cellular processes governed by SIRT5, such as metabolic regulation, stress response, and aging. The primary mechanism of action for these inhibitors involves direct enzymatic inhibition or alteration of the protein's functionality. Compounds like Nicotinamide, Sirtinol, and EX-527 are known for their ability to interfere with the enzymatic activity of sirtuins, including SIRT5. This inhibition leads to changes in the metabolic pathways regulated by SIRT5, such as fatty acid oxidation, urea cycle, and reactive oxygen species (ROS) detoxification. Other compounds like Suramin, AGK2, and Tenovin-6, while initially identified for different targets, have the ability to inhibit sirtuin activities, thereby influencing the regulatory roles of SIRT5. Another aspect of these inhibitors is their influence on cellular aging and stress response mechanisms. SIRT5 plays a crucial role in regulating mitochondrial metabolism and ROS detoxification, processes integral to cellular aging and response to environmental stressors. Inhibitors like Cambinol, Salermide, and AK-1 can modulate these processes by affecting SIRT5's activity. Natural compounds like Quercetin impact the regulatory pathways involved in aging and stress responses. It is important to emphasize that the effectiveness of these compounds in specifically inhibiting SIRT5 requires careful consideration of their broader effects on cellular functions. Their impact on SIRT5 and the associated metabolic and stress response pathways depends on various factors, including the specific cellular context, concentration, and duration of exposure. While these compounds provide valuable insights into the regulation of SIRT5 activity, their role in specifically modulating SIRT5-mediated processes warrants further experimental investigation in relevant biological models.

Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Suramin sodium

129-46-4sc-507209
sc-507209F
sc-507209A
sc-507209B
sc-507209C
sc-507209D
sc-507209E
50 mg
100 mg
250 mg
1 g
10 g
25 g
50 g
$149.00
$210.00
$714.00
$2550.00
$10750.00
$21410.00
$40290.00
5
(1)

Suramin sodium acts as a SIRT5 modulator, engaging in selective binding that alters the enzyme's conformational dynamics. Its unique molecular architecture enables it to disrupt key protein interactions, influencing the regulation of mitochondrial metabolism. The compound exhibits distinctive reaction kinetics, characterized by a non-linear response in deacetylation rates. Furthermore, its hydrophilic nature enhances its interaction with cellular membranes, potentially impacting intracellular signaling cascades.

Nicotinamide

98-92-0sc-208096
sc-208096A
sc-208096B
sc-208096C
100 g
250 g
1 kg
5 kg
$43.00
$65.00
$200.00
$815.00
6
(1)

Nicotinamide, a form of vitamin B3, is a well-known sirtuin inhibitor. It inhibits SIRT5 by serving as a non-competitive inhibitor, thereby influencing cellular metabolism and aging processes mediated by SIRT5.

SIRT1/2 Inhibitor IV, Cambinol

14513-15-6sc-204280
5 mg
$142.00
4
(1)

SIRT1/2 Inhibitor IV, Cambinol, functions as a SIRT5 modulator by selectively targeting the enzyme's active site, leading to altered substrate affinity. Its unique structural features facilitate specific hydrogen bonding interactions, which can stabilize transient enzyme conformations. The compound exhibits a distinct kinetic profile, with a pronounced effect on the modulation of metabolic pathways. Additionally, its lipophilic characteristics may influence membrane permeability, affecting cellular localization and interaction with lipid rafts.

Sirtinol

410536-97-9sc-205976
sc-205976A
1 mg
5 mg
$37.00
$111.00
14
(1)

Sirtinol is known to inhibit sirtuin activity. It can impede SIRT5 function by interfering with its deacetylase and demalonylase activities, affecting metabolic regulation and stress response pathways.

EX 527

49843-98-3sc-203044
5 mg
$85.00
32
(1)

EX-527 selectively inhibits SIRT1 but has been shown to affect other sirtuins as well. Its inhibition of SIRT5 can impact cellular energy metabolism and stress response mechanisms.

SIRT2 Inhibitor, AGK2

304896-28-4sc-202813A
sc-202813
sc-202813B
sc-202813C
1 mg
5 mg
10 mg
25 mg
$45.00
$145.00
$310.00
$480.00
5
(1)

AGK2 is a selective SIRT2 inhibitor but may exert inhibitory effects on other sirtuins like SIRT5, potentially impacting energy metabolism and cellular stress responses.

Tenovin-6

1011557-82-6sc-224296
sc-224296A
1 mg
5 mg
$272.00
$1214.00
9
(1)

Tenovin-6, a small molecule activator of p53, also inhibits sirtuin activity. Its inhibition of SIRT5 can affect processes like mitochondrial metabolism and regulation of oxidative stress.

Salermide

1105698-15-4sc-224276
sc-224276A
5 mg
10 mg
$70.00
$105.00
3
(1)

Salermide, initially designed as an SIRT1 and SIRT2 inhibitor, can also affect SIRT5. Its inhibition of SIRT5 can play a role in modulating metabolic pathways and stress responses.

SIRT2 Inhibitor II, AK-1

330461-64-8sc-364619
10 mg
$171.00
(0)

AK-1 is known for its inhibitory effect on SIRT2 but may also affect SIRT5. It can modulate metabolic and aging processes by inhibiting SIRT5's enzymatic activities.

1-Phenothiazin-10-yl-2-(9H-1,3,4,9-tetraaza-fluoren-2-ylsufanyl)-butan-1-one (Inauhzin)

309271-94-1sc-478554
10 mg
$390.00
(0)

Also called Inauhzin, this compound activates p53 and has been shown to inhibit sirtuins. Its effect on SIRT5 can influence pathways involved in metabolism and cellular stress responses.