Date published: 2026-4-25

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PYGL Inhibitors

The class of PYGL inhibitors encompasses a range of compounds that specifically target glycogen phosphorylase, a key enzyme in the glycogenolysis pathway. These inhibitors can be broadly categorized into direct and indirect modulators of PYGL activity. Direct inhibitors such as BAY-876, CP-91149, and GSK-843 directly interact with PYGL, impeding its catalytic activity and disrupting the conversion of glycogen to glucose-1-phosphate. These compounds provide precise control over glycogen metabolism, offering researchers valuable tools to investigate the role of PYGL in cellular energy regulation.Indirect inhibitors like Imiglitazar, ML-265, and NNC-0640 exert their effects through alternative pathways. Imiglitazar, a dual PPARα/γ agonist, indirectly modulates PYGL by enhancing fatty acid oxidation, leading to increased ATP levels and subsequent inhibition of AMPK, resulting in reduced PYGL phosphorylation and activity. ML-265 and NNC-0640, both direct inhibitors, further contribute to our understanding of PYGL regulation and its implications for metabolic disorders. These inhibitors collectively contribute to delineating the intricate mechanisms of glycogen metabolism and cellular energy balance.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

1,4-Dideoxy-1,4-imino-D-arabinitol hydrochloride

100991-92-2sc-220553
sc-220553A
10 mg
25 mg
$431.00
$1025.00
2
(1)

1,4-Dideoxy-1,4-imino-D-arabinitol hydrochloride acts as a potent inhibitor of glycogen phosphorylase, influencing glycogen metabolism. Its structural conformation allows for specific binding to the enzyme's active site, disrupting substrate access and altering reaction kinetics. This compound exhibits unique molecular interactions that stabilize the enzyme-inhibitor complex, effectively modulating enzymatic activity. Its solubility properties facilitate efficient distribution in biochemical assays, enhancing experimental versatility.

BAY-876

1799753-84-6sc-507539
5 mg
$240.00
(0)

BAY-876 is a selective and potent chemical inhibitor targeting the glycogen phosphorylase (PYGL). It directly inhibits the enzyme's catalytic activity, preventing the conversion of glycogen to glucose-1-phosphate. By blocking PYGL, BAY-876 disrupts the glycogenolysis pathway, ultimately reducing the availability of glucose for energy production.

CP-91149

186392-40-5sc-396026A
sc-396026
sc-396026B
sc-396026C
sc-396026D
5 mg
10 mg
25 mg
50 mg
100 mg
$163.00
$204.00
$398.00
$500.00
$714.00
1
(0)

CP-91149 is a selective inhibitor of glycogen phosphorylase, characterized by its unique ability to form stable interactions with the enzyme's allosteric site. This compound alters the enzyme's conformational dynamics, leading to a significant reduction in catalytic efficiency. Its distinct molecular architecture promotes specific hydrogen bonding and hydrophobic interactions, enhancing binding affinity. Additionally, CP-91149's solubility profile supports its effective integration into various biochemical systems, allowing for precise modulation of glycogen metabolism.

Bisindolylmaleimide I (GF 109203X)

133052-90-1sc-24003A
sc-24003
1 mg
5 mg
$105.00
$242.00
36
(1)

Bisindolylmaleimide I is a chemical compound known to inhibit glycogen phosphorylase (PYGL). It directly interacts with the enzyme, interfering with its catalytic activity and disrupting the glycogenolysis pathway.

CP 471474

210755-45-6sc-361157
10 mg
$200.00
1
(0)

CP-471474 is a PYGL inhibitor that directly interferes with the enzyme′s catalytic activity. By disrupting the glycogenolysis pathway, CP-471474 inhibits the conversion of glycogen to glucose-1-phosphate.