Date published: 2026-5-6

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PIS1 Activators

PIS1 activators are a complex class of compounds that operate across various lipid metabolism pathways to either directly or indirectly stimulate the activity of the PIS1 protein in phosphatidylinositol synthesis. Some activators, such as Oleic Acid and Palmitoyl-CoA, impact PIS1 by escalating the cellular demand for lipids, hence requiring an increased supply of the phosphorylinositol head group that PIS1 transfers. In contrast, inhibitors like U18666A, Rapamycin, and Mevastatin stimulate PIS1 activity by impairing other lipid metabolic pathways, thereby creating a compensatory upregulation of PIS1 to maintain lipid homeostasis.

Furthermore, compounds like Fenofibrate and Wortmannin specifically target enzymes and transcription factors that influence lipid metabolism. Fenofibrate's activation of PPARα and Wortmannin's inhibition of PI3K both result in an increased need for PI synthesis, consequently activating PIS1. Finally, agents like Nystatin and A23187 introduce cellular stress by disrupting membrane integrity or calcium homeostasis, which forces the cell to stabilize its environment. The stabilizing mechanism includes activation of PIS1 to ramp up phosphatidylinositol synthesis. Overall, these chemicals exert precise influences on lipid metabolic pathways, ultimately leading to the activation of PIS1.

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Items 1 to 10 of 11 total

Display:

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Oleic Acid

112-80-1sc-200797C
sc-200797
sc-200797A
sc-200797B
1 g
10 g
100 g
250 g
$37.00
$104.00
$580.00
$1196.00
10
(1)

Fatty acid that increases cellular lipid demand, thereby activating PIS1 to supplement phosphatidylinositol (PI) synthesis.

U 18666A

3039-71-2sc-203306
sc-203306A
10 mg
50 mg
$143.00
$510.00
2
(1)

Inhibits cholesterol transport, thereby indirectly activating PIS1 to maintain lipid homeostasis.

Rapamycin

53123-88-9sc-3504
sc-3504A
sc-3504B
1 mg
5 mg
25 mg
$63.00
$158.00
$326.00
233
(4)

Inhibits mTOR, thereby activating autophagy which in turn demands higher PI synthesis, activating PIS1.

Cerulenin (synthetic)

17397-89-6sc-200827
sc-200827A
sc-200827B
5 mg
10 mg
50 mg
$161.00
$312.00
$1210.00
9
(1)

Inhibits fatty acid synthase, shifting metabolic focus towards PI synthesis, thereby activating PIS1.

Mevastatin (Compactin)

73573-88-3sc-200853
sc-200853A
10 mg
50 mg
$77.00
$179.00
18
(1)

Inhibits HMG-CoA reductase, indirectly activating PIS1 to counterbalance lipid synthesis.

Fenofibrate

49562-28-9sc-204751
5 g
$41.00
9
(1)

Activates PPARα, indirectly upregulating lipid catabolism pathways that will need increased PI synthesis, thereby activating PIS1.

Wortmannin

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

PI3K inhibitor, increases demand for PI substrate, thereby activating PIS1.

LY 294002

154447-36-6sc-201426
sc-201426A
5 mg
25 mg
$123.00
$400.00
148
(1)

Another PI3K inhibitor, upregulates PI synthesis and subsequently PIS1 activation.

Nystatin

1400-61-9sc-212431
sc-212431A
sc-212431B
sc-212431C
5 MU
25 MU
250 MU
5000 MU
$51.00
$129.00
$251.00
$3570.00
7
(1)

Disrupts membrane integrity by binding sterols, compensatorily activating PIS1 for PI synthesis.

Manumycin A

52665-74-4sc-200857
sc-200857A
1 mg
5 mg
$219.00
$634.00
5
(1)

farnesyltransferase inhibitor; alters prenylation pathways and indirectly boosts PIS1 for PI synthesis.