Date published: 2026-4-1

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St3Gal-I Inhibitors

St3Gal-I inhibitors represent a class of compounds designed to target the enzyme ST3 beta-galactoside alpha-2,3-sialyltransferase 1 (St3Gal-I), a glycosyltransferase involved in the biosynthesis of sialylated glycoproteins and glycolipids. St3Gal-I is a crucial player in the addition of sialic acid residues to the terminal galactose of glycoconjugates, a process known as sialylation. This enzymatic modification has significant implications for cellular functions, particularly in the context of cell adhesion, recognition, and signal transduction.

St3Gal-I inhibitors involve the exploration of small molecules or compounds that can selectively modulate the activity of St3Gal-I, thereby influencing the sialylation patterns of cell surface glycans. These inhibitors function by interfering with the catalytic activity of St3Gal-I, ultimately affecting the addition of sialic acid to glycoconjugates. Understanding the structural features of St3Gal-I and its substrate specificity is essential in the rational design of inhibitors. Researchers in this field aim to elucidate the molecular interactions between the inhibitors and the active site of St3Gal-I, allowing for the optimization of these compounds to enhance their potency and selectivity. The exploration of St3Gal-I inhibitors contributes to the broader field of glycobiology, offering insights into the roles of sialylation in various physiological and pathological processes and paving the way for potential applications in basic research and beyond.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Siastatin B microbial

54795-58-3sc-215851
5 mg
$429.00
(0)

A microbial metabolite that inhibits glycosyltransferases including St3Gal-I by mimicking the natural substrate transition state.

Benzyl-2-acetamido-2-deoxy-α-D-galactopyranoside

3554-93-6sc-203427
sc-203427A
100 mg
1 g
$350.00
$3184.00
2
(0)

A competitive inhibitor that targets the donor substrate binding site of St3Gal-I, thereby inhibiting the enzyme's activity.

(Z)-Pugnac

132489-69-1sc-204415A
sc-204415
5 mg
10 mg
$224.00
$380.00
3
(1)

An inhibitor of O-GlcNAcase that can also inhibit sialyltransferases like St3Gal-I by elevating the level of substrate competition.

Lithocholic acid

434-13-9sc-215262
sc-215262A
10 g
25 g
$100.00
$272.00
1
(1)

A bile acid that has been found to non-specifically inhibit various glycosyltransferases including St3Gal-I.

5-Nonyloxytryptamine oxalate

157798-13-5sc-203480
sc-203480A
10 mg
50 mg
$113.00
$640.00
2
(0)

An amine derivative reported to inhibit glycosyltransferases, potentially affecting St3Gal-I activity indirectly.

5′-Deoxy-5′-methylthioadenosine

2457-80-9sc-202427
50 mg
$122.00
1
(1)

A byproduct of polyamine biosynthesis that can inhibit various methyltransferases and may indirectly affect St3Gal-I activity.

Deoxynojirimycin

19130-96-2sc-201369
sc-201369A
1 mg
5 mg
$73.00
$145.00
(0)

An iminosugar that inhibits glycosidases and can lead to altered glycosyltransferase activity, potentially affecting St3Gal-I.

Tunicamycin

11089-65-9sc-3506A
sc-3506
5 mg
10 mg
$172.00
$305.00
66
(3)

An N-linked glycosylation inhibitor that indirectly affects glycosyltransferases by disrupting the glycosylation process in the ER.