Date published: 2026-2-1

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CD26 Inhibitors

CD26 inhibitors belong to a distinct chemical class that exerts its effects by targeting the enzymatic activity of CD26, also known as dipeptidyl peptidase 4 (DPP-4). CD26 is a type II transmembrane glycoprotein that plays a multifaceted role in various physiological and cellular processes. The inhibitors designed to modulate CD26 activity usually possess a specific structural motif, enabling them to interact with the active site of the enzyme. This active site is crucial for the enzymatic cleavage of peptides, specifically those with proline or alanine at the penultimate position. CD26 inhibitors act by binding to this site, hindering the enzymatic hydrolysis of peptides and thereby influencing various biological functions. Structurally, CD26 inhibitors often contain moieties that are essential for their interaction with the active site of CD26. These moieties may comprise polar and nonpolar groups, which contribute to the overall binding affinity and specificity of the inhibitor for the enzyme. Through their interaction with CD26, these inhibitors can modulate the activity of various peptide substrates, which may have implications for cellular signaling, immune response regulation, and metabolic processes. The specific structural features of CD26 inhibitors enable them to selectively bind to the enzyme's active site and inhibit its catalytic function, leading to alterations in peptide homeostasis and affecting downstream cellular responses.

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Sitagliptin phosphate monohydrate

654671-77-9sc-364620
200 mg
$63.00
5
(1)

Sitagliptin phosphate monohydrate functions as a selective modulator of CD26, exhibiting unique interactions that alter the enzyme's conformation and activity. Its structural attributes promote specific binding affinities, leading to distinct kinetic profiles that influence enzymatic regulation. The compound's solubility characteristics further enhance its interaction with biological substrates, facilitating nuanced biochemical pathways and contributing to its overall efficacy in modulating enzyme behavior.

NVP DPP 728 dihydrochloride

207556-62-5sc-204141
sc-204141A
10 mg
50 mg
$185.00
$781.00
2
(0)

NVP DPP 728 dihydrochloride acts as a potent inhibitor of CD26, showcasing a unique ability to disrupt enzyme-substrate interactions through competitive binding. Its molecular structure allows for specific conformational changes in the enzyme, impacting catalytic efficiency and reaction rates. The compound's hydrophilic nature enhances its solubility, promoting effective diffusion in biological systems and influencing metabolic pathways through altered enzyme dynamics.

Linagliptin

668270-12-0sc-364721
sc-364721A
5 mg
10 mg
$260.00
$426.00
2
(0)

Linagliptin exhibits a distinctive mechanism of action as a CD26 inhibitor, characterized by its selective binding affinity that alters the enzyme's active site conformation. This interaction leads to a reduction in enzymatic activity, effectively modulating substrate availability. The compound's unique stereochemistry contributes to its stability and resistance to metabolic degradation, while its lipophilic properties facilitate membrane permeability, influencing cellular uptake and distribution.

Dipeptidylpeptidase IV Inhibitor IV, K579

440100-64-1sc-202583
5 mg
$235.00
3
(0)

Dipeptidylpeptidase IV Inhibitor IV, K579, showcases a unique interaction profile with CD26, marked by its ability to form stable complexes that hinder enzyme-substrate interactions. This compound exhibits a high degree of specificity, allowing it to selectively modulate the enzymatic pathway without affecting related enzymes. Its distinct molecular structure enhances binding kinetics, promoting prolonged inhibition, while its hydrophobic characteristics influence solubility and distribution in biological systems.

Saxagliptin

361442-04-8sc-473161
1 mg
$360.00
(0)

Saxagliptin is a CD26 inhibitor that works similarly to other DPP-4 inhibitors by increasing the levels of GLP-1 and GIP. It is thought to improve glycemic control in adults with type 2 diabetes.

P32/98

136259-20-6sc-201305
sc-201305A
10 mg
50 mg
$183.00
$774.00
2
(0)

P32/98 acts as a potent modulator of CD26, characterized by its ability to disrupt the enzyme's active site through competitive inhibition. This compound demonstrates a unique affinity for specific amino acid residues, leading to altered conformational dynamics that impede substrate access. Its distinctive electronic properties facilitate rapid reaction kinetics, while its steric bulk enhances selectivity, minimizing off-target effects. Additionally, its solvation behavior influences interaction stability, contributing to its overall efficacy.

Sitagliptin Phosphate

654671-78-0sc-208391
1 mg
$220.00
(1)

Sitagliptin Phosphate exhibits a remarkable capacity to interact with CD26, primarily through allosteric modulation that alters enzyme conformation. This compound engages in specific hydrogen bonding with key residues, enhancing its binding affinity. Its unique stereochemistry promotes selective interactions, while its hydrophilic nature influences solubility and bioavailability. The compound's kinetic profile reveals a nuanced balance between binding and dissociation rates, optimizing its functional impact on enzymatic pathways.

rac-Sitagliptin

823817-56-7sc-208294
1 mg
$430.00
(0)

Rac-Sitagliptin demonstrates a distinctive ability to inhibit CD26 through competitive binding, effectively blocking substrate access. Its structural conformation allows for precise interactions with the enzyme's active site, facilitating a unique lock-and-key mechanism. The compound's chirality contributes to its selective affinity, while its polar characteristics enhance solvation dynamics. Additionally, the reaction kinetics indicate a rapid onset of inhibition, underscoring its potential for modulating enzymatic activity.

Diprotin B

90614-49-6sc-294372
sc-294372A
5 mg
25 mg
$23.00
$50.00
(0)

Diprotin B exhibits a remarkable capacity to modulate CD26 activity by engaging in non-covalent interactions that stabilize its binding to the enzyme. Its unique peptide structure allows for specific conformational adjustments, enhancing its affinity for the active site. The compound's dynamic behavior in solution, influenced by its hydrophobic regions, facilitates effective substrate competition. Furthermore, its kinetic profile reveals a nuanced balance between binding affinity and dissociation rates, highlighting its intricate role in enzymatic regulation.

H-Boroproline Pinacol Hydrochloride

123948-28-7sc-391735
25 mg
$367.00
(0)

H-Boroproline Pinacol Hydrochloride demonstrates a distinctive ability to influence CD26 through its unique boron-containing structure, which enhances its interaction with the enzyme's active site. The compound's stereochemistry allows for specific spatial arrangements that promote effective binding. Its solubility characteristics and reactivity as an acid halide contribute to its dynamic interactions in biological systems, facilitating modulation of enzymatic pathways through competitive inhibition and altered reaction kinetics.