Date published: 2026-4-1

1-800-457-3801

SCBT Portrait Logo
Seach Input

PYGM Inhibitors

Glycogen phosphorylase muscle form (PYGM) is an enzyme that plays a critical role in glycogen metabolism, particularly within muscle tissues. It catalyzes the phosphorolysis of glycogen to produce glucose-1-phosphate, which is then converted to glucose-6-phosphate for entry into glycolysis or for release into the bloodstream to maintain blood glucose levels. The activity of PYGM is essential for the mobilization of stored glycogen, especially during periods of high energy demand such as intense physical activity. This enzyme is tightly regulated by various allosteric effectors and covalent modification, ensuring that glycogenolysis is initiated when required and halted when not necessary. The regulation of PYGM involves a complex interplay between phosphorylation states, influenced by hormonal signals like adrenaline and glucagon, and the presence of intracellular molecules like glucose and AMP, which act as indicators of the cell's energetic status. Inhibition of PYGM represents a mechanism through which the breakdown of glycogen can be controlled, preventing excessive depletion of glycogen stores and ensuring a steady supply of glucose is available for muscle contraction and energy production. Inhibitory mechanisms can act through direct interaction with the enzyme, altering its conformation and thereby reducing its affinity for glycogen or its catalytic efficiency. Allosteric inhibitors, for example, bind to sites distinct from the active site, inducing conformational changes that diminish enzyme activity. Additionally, the phosphorylation state of PYGM is a critical determinant of its activity; dephosphorylation of the enzyme by phosphatases leads to a less active form, while phosphorylation by kinases activates it. Regulatory proteins and intracellular signaling cascades that modulate these phosphorylation events, therefore, indirectly influence PYGM's inhibition. Such regulatory mechanisms ensure that glycogenolysis is precisely controlled in response to cellular and physiological needs, maintaining energy homeostasis within the muscle tissues.

Items 1 to 10 of 14 total

Display:

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, exhibiting unique molecular interactions that disrupt substrate binding. Its structural features facilitate specific electrostatic interactions, influencing the enzyme's active site conformation. The compound's kinetic profile reveals a competitive inhibition mechanism, effectively altering the reaction rate. Furthermore, its solubility characteristics enable versatile applications in biochemical assays, enhancing the study of glycogen metabolism pathways.

Dichloroacetic acid

79-43-6sc-214877
sc-214877A
25 g
100 g
$61.00
$128.00
5
(0)

Inhibits pyruvate dehydrogenase kinase, indirectly influencing the metabolic pathways related to PYGM, potentially modulating its activity through altered energy metabolism.

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 functions as a selective inhibitor of glycogen phosphorylase, characterized by its ability to form stable complexes with the enzyme. This compound exhibits unique steric hindrance that alters the enzyme's conformation, impacting substrate accessibility. Its reaction kinetics suggest a non-competitive inhibition model, which modifies the catalytic efficiency without affecting substrate affinity. Additionally, CP-91149's hydrophilic nature enhances its interaction with aqueous environments, facilitating detailed mechanistic studies.

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)

Inhibits cellular respiration by interfering with cytochrome c oxidase, impacting the energy production pathways and potentially affecting PYGM activity indirectly through altered cellular energetics.

Sodium Fluoride

7681-49-4sc-24988A
sc-24988
sc-24988B
5 g
100 g
500 g
$40.00
$46.00
$100.00
26
(4)

Inhibits various phosphatases, potentially influencing the cellular signaling pathways related to PYGM regulation.

2-Deoxy-D-glucose

154-17-6sc-202010
sc-202010A
1 g
5 g
$70.00
$215.00
26
(2)

Acts as a competitive inhibitor of glucose metabolism, indirectly affecting the energy balance and potentially influencing PYGM through altered cellular metabolism.

Caffeine

58-08-2sc-202514
sc-202514A
sc-202514B
sc-202514C
sc-202514D
50 g
100 g
250 g
1 kg
5 kg
$33.00
$67.00
$97.00
$192.00
$775.00
13
(1)

Inhibits adenosine receptors and cAMP phosphodiesterase, influencing cellular signaling cascades that might indirectly modulate PYGM activity.

GSK-3 Inhibitor IX

667463-62-9sc-202634
sc-202634A
sc-202634B
1 mg
10 mg
50 mg
$58.00
$188.00
$884.00
10
(1)

Inhibits glycogen synthase kinase-3 (GSK-3), potentially impacting glycogen metabolism pathways and influencing PYGM indirectly.

3-Bromo-7-nitroindazole

74209-34-0sc-200347
sc-200347A
5 mg
25 mg
$20.00
$26.00
1
(1)

Inhibits nitric oxide synthase (NOS), potentially affecting cellular signaling pathways related to PYGM regulation.

Wortmannin

19545-26-7sc-3505
sc-3505A
sc-3505B
1 mg
5 mg
20 mg
$67.00
$223.00
$425.00
97
(3)

Inhibits phosphoinositide 3-kinase (PI3K), potentially affecting the AKT/mTOR pathway and influencing cellular processes related to PYGM indirectly.