Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

SML2453

Sigma-Aldrich

GSK-A1

≥98% (HPLC)

Synonym(s):

5-(2-Amino-1-(4-morpholinophenyl)-1H-benzimidazol-6-yl)-N-(2-fluorophenyl)-2-methoxypyridine-3-sulfonamide, 5-(2-Amino-1-(4-morpholinophenyl)-1H-benzo[d]imidazol-6-yl)-N-(2-fluorophenyl)-2-methoxypyridine-3-sulfonamide, 5-[2-Amino-1-[4-(4-morpholinyl)phenyl]-1H-benzimidazol-6-yl]-N-(2-fluorophenyl)-2-methoxy-3-pyridinesulfonamide, Compound A1, PI4KA Inhibitor A1

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C29H27FN6O4S
CAS Number:
1416334-69-4
Molecular Weight:
574.63
MDL number:
MFCD29770784
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

−20°C

SMILES string

O=S(C1=CC(C2=CC=C3C(N(C4=CC=C(N5CCOCC5)C=C4)C(N)=N3)=C2)=CN=C1OC)(NC6=CC=CC=C6F)=O

Biochem/physiol Actions

GSK-A1 is an ATP site-targeting, highly potent and selective type III phosphatidylinositol 4-kinase PI4KA (PI4KIIIα) inhibitor (pIC50 = 8.5-9.8) that selectively downregulates cellular PtdIns(4)P, but not PtdIns(4,5)P2, level (HEK293 IC50 = 3 nM, complete depletion of HEK293 & COS-7 plasma membrane PtdIns(4)P by 100 nM post 10 min treatment) with much reduced potency toward PI4KB (pIC50 = 7.2-7.7), PI3KA/B/D/G (pIC50 = 7.3/7/7.1/7.8) or PI4K/2A/2B (pIC50 <5). GSK-A1 is a useful tool for probing PI4KA-dependent cellular processes and viral replication (typical culture treatment conc. range: 10-100 nM).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Cristina M Dorobantu et al.
mSphere, 1(3) (2016-06-16)
Positive-strand RNA [(+)RNA] viruses are true masters of reprogramming host lipid trafficking and synthesis to support virus genome replication. Via their membrane-associated 3A protein, picornaviruses of the genus Enterovirus (e.g., poliovirus, coxsackievirus, and rhinovirus) subvert Golgi complex-localized phosphatidylinositol 4-kinase IIIβ
Colleen P Doyle et al.
Contact (Thousand Oaks (Ventura County, Calif.)), 7, 25152564241232196-25152564241232196 (2024-02-26)
The lipid phosphatidylinositol 4-phosphate (PI4P) plays a master regulatory role at Golgi membranes, orchestrating membrane budding, non-vesicular lipid transport and membrane organization. It follows that harmonious Golgi function requires strictly maintained PI4P homeostasis. One of the most abundant PI4P effector
Rafael Gil de Rubio et al.
Science signaling, 11(547) (2018-09-13)
Phospholipase C (PLC) enzymes hydrolyze the plasma membrane (PM) lipid phosphatidylinositol 4,5-bisphosphate (PI4,5P2) to generate the second messengers inositol trisphosphate (IP3) and diacylglycerol (DAG) in response to receptor activation in almost all mammalian cells. We previously found that stimulation of
Alejandro Alvarez-Prats et al.
Cell reports, 23(10), 2881-2890 (2018-06-07)
Active membrane remodeling during myelination relies on phospholipid synthesis and membrane polarization, both of which are known to depend on inositol phospholipids. Here, we show that sciatic nerves of mice lacking phosphatidylinositol 4-kinase alpha (PI4KA) in Schwann cells (SCs) show
Cristina M Dorobantu et al.
Antimicrobial agents and chemotherapy, 60(10), 6402-6406 (2016-08-03)
Encephalomyocarditis virus (EMCV), like hepatitis C virus (HCV), requires phosphatidylinositol 4-kinase IIIα (PI4KA) for genome replication. Here, we demonstrate that tyrphostin AG1478, a known epidermal growth factor receptor (EGFR) inhibitor, also inhibits PI4KA activity, both in vitro and in cells.
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service