Date published: 2026-5-30

1-800-457-3801

SCBT Portrait Logo
Seach Input

Type I 4-phoshatase α Inhibitors

The chemical class of Type I 4-phosphatase α inhibitors would include a wide range of compounds, given the lack of specificity of the term "Type I 4-phosphatase α." In general, phosphatase inhibitors function by either mimicking the transition state of the enzyme's natural substrate, chelating necessary metal ions in the active site, or binding to active site residues to prevent catalysis.

Inhibitors like sodium orthovanadate and sodium fluoride act by mimicking phosphate groups or by forming complexes with catalytic metal ions. Cantharidin and calyculin A are natural toxins that inhibit protein phosphatases through covalent modification or by binding tightly to the active site. Okadaic acid and microcystin-LR, both produced by marine organisms, are potent inhibitors of PP2A and PP1, often used in research to study cellular phosphorylation processes. Tautomycetin is a more selective inhibitor that allows for differential inhibition of phosphatases.

Items 1 to 10 of 11 total

Display:

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Sodium Orthovanadate

13721-39-6sc-3540
sc-3540B
sc-3540A
5 g
10 g
50 g
$49.00
$57.00
$187.00
142
(4)

A non-specific inhibitor of protein tyrosine phosphatases; it acts by mimicking the transition state of phosphate esters, thus blocking the active site of the phosphatase.

Sodium Fluoride

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

Commonly used to inhibit serine/threonine phosphatases by forming complexes with the catalytic metal ions in the active site.

Calyculin A

101932-71-2sc-24000
sc-24000A
10 µg
100 µg
$163.00
$800.00
59
(3)

A potent and selective inhibitor of protein phosphatases 1 (PP1) and 2A (PP2A), which may indirectly affect the signaling pathways involving Type I 4-phosphatase α.

Cantharidin

56-25-7sc-201321
sc-201321A
25 mg
100 mg
$89.00
$279.00
6
(1)

An inhibitor of PP1 and PP2A, which may also have broader effects on the phosphatase enzyme family.

Endothall

145-73-3sc-201325
sc-201325A
20 mg
100 mg
$49.00
$203.00
1
(1)

Acts as a phosphatase inhibitor by chelating the metal ions necessary for enzyme activity.

Okadaic Acid

78111-17-8sc-3513
sc-3513A
sc-3513B
25 µg
100 µg
1 mg
$291.00
$530.00
$1800.00
78
(4)

A potent inhibitor of PP2A and PP1, it can indirectly affect the signaling related to Type I 4-phosphatase α by altering the phosphorylation status of downstream targets.

Epothilone A

152044-53-6sc-207628
sc-207628A
10 µg
1 mg
$210.00
$1000.00
1
(1)

Selectively inhibits PP1 over PP2A, potentially affecting the activity of related phosphatases such as Type I 4-phosphatase α.

Phenylarsine oxide

637-03-6sc-3521
250 mg
$41.00
4
(1)

Inhibits protein tyrosine phosphatases by binding to vicinal thiol groups in the active site.

Fostriecin

87860-39-7sc-202160
50 µg
$265.00
9
(1)

Preferentially inhibits PP2A and PP4, which could indirectly influence Type I 4-phosphatase α signaling pathways.

Ionomycin

56092-82-1sc-3592
sc-3592A
1 mg
5 mg
$78.00
$270.00
80
(4)

Although primarily a calcium ionophore, it can disrupt cellular signaling pathways and indirectly affect phosphatase activity.