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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

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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’.

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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
Gillian L Dornan et al.
Journal of molecular biology, 430(18 Pt B), 3129-3142 (2018-07-22)
Phosphatidylinositol 4-kinase IIIα (PI4KIIIα) is the lipid kinase primarily responsible for generating the lipid phosphatidylinositol 4-phosphate (PI4P) at the plasma membrane, which acts as the substrate for generation of the signaling lipids PIP2 and PIP3. PI4KIIIα forms a large heterotrimeric
C E Melia et al.
mBio, 9(2) (2018-04-19)
Picornaviruses induce dramatic rearrangements of endomembranes in the cells that they infect to produce dedicated platforms for viral replication. These structures, termed replication organelles (ROs), have been well characterized for the Enterovirus genus of the Picornaviridae However, it is unknown
Joshua A Lees et al.
Proceedings of the National Academy of Sciences of the United States of America, 114(52), 13720-13725 (2017-12-13)
Plasma membrane (PM) phosphoinositides play essential roles in cell physiology, serving as both markers of membrane identity and signaling molecules central to the cell's interaction with its environment. The first step in PM phosphoinositide synthesis is the conversion of phosphatidylinositol
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
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