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Assay Detail

CHEMBL3706341

Review assay metadata, readout intent, target linkage, and publication context from the same page.

Binding
Alphascreen Assay: The PI3K AlphaScreen assay (PerkinElmer, Waltham, Mass.) measures the activity of a panel of four phosphoinositide 3-kinases: PI3Kalpha, PI3Kbeta, PI3Kgamma, and PI3Kdelta. Each of these enzymes phosphorylates the 3'-hydroxyl group on phosphatidylinositiol (4,5)-bisphosphate (PIP2) to produce phosphatidylinositol (3,4,5)-trisphosphate (PIP3). This phosphorylation activity is measured using a GST-tagged PIP3 binding protein (Echelon Biosciences, Salt Lake City, Utah), an anti-GST-tagged Acceptor bead, and streptavidin-Donor bead. The interaction of biotinylated-PIP3 analog (IP4) and the PIP3 binding protein brings both Acceptor and Donor beads together producing, upon excitation of the Donor beads at 680 nm, a singlet oxygen species leading to the luminescent AlphaScreen signal. When PIP3 is produced via phosphorylation of PIP2 by a PI3K, PIP3 competes with biotinylated-PIP3 analog (IP4) for binding to the PIP3 binding protein.
345
Total Activities
343
Compounds Tested
1
Activity Types
0
Assay Parameters

Assay Information

Assay Type Binding
Organism Homo sapiens
Confidence 9 — Direct single protein target
Curated By Autocuration

Publication

Inhibitors of PI3 kinase and/or mTOR
(2014)

Activity Statistics

Type Count Avg pChEMBL Best pChEMBL
Ki 345 7.42 9.00

Compounds Tested

Compound Name Phase Activities Best pChEMBL
CHEMBL2170088 1 9.00
CHEMBL3646588 1 9.00
CHEMBL3646596 1 9.00
CHEMBL3646485 1 9.00
CHEMBL3646632 1 8.70
CHEMBL2206921 1 8.70
CHEMBL2206907 1 8.70
CHEMBL2170082 1 8.70
CHEMBL3646601 3 8.70
CHEMBL3646595 1 8.70
CHEMBL2170083 1 8.70
CHEMBL3646517 1 8.70
CHEMBL3646481 1 8.70
CHEMBL3646480 1 8.70
CHEMBL2165007 1 8.70
CHEMBL3646449 1 8.70
CHEMBL2170090 1 8.70
CHEMBL3646586 1 8.52
CHEMBL3646618 1 8.52
CHEMBL3646575 1 8.52
CHEMBL2170089 1 8.52
CHEMBL3646450 1 8.52
CHEMBL3643923 1 8.40
CHEMBL2170099 1 8.40
CHEMBL2170081 1 8.40
CHEMBL3646518 1 8.40
CHEMBL3646543 1 8.40
CHEMBL3646557 1 8.40
CHEMBL3357868 1 8.40
CHEMBL3646584 1 8.40

Activity Data

Compound Name Type Rel. Value Units pChEMBL
CHEMBL3646485 Ki = 1.0 nM 9.00
CHEMBL3646588 Ki = 1.0 nM 9.00
CHEMBL3646596 Ki = 1.0 nM 9.00
CHEMBL2170088 Ki = 1.0 nM 9.00
CHEMBL3646480 Ki = 2.0 nM 8.70
CHEMBL3646595 Ki = 2.0 nM 8.70
CHEMBL2165007 Ki = 2.0 nM 8.70
CHEMBL3646481 Ki = 2.0 nM 8.70
CHEMBL3646601 Ki = 2.0 nM 8.70
CHEMBL3646632 Ki = 2.0 nM 8.70
CHEMBL2170090 Ki = 2.0 nM 8.70
CHEMBL3646449 Ki = 2.0 nM 8.70
CHEMBL2170083 Ki = 2.0 nM 8.70
CHEMBL2206921 Ki = 2.0 nM 8.70
CHEMBL2206907 Ki = 2.0 nM 8.70
CHEMBL3646517 Ki = 2.0 nM 8.70
CHEMBL2170082 Ki = 2.0 nM 8.70
CHEMBL3646575 Ki = 3.0 nM 8.52
CHEMBL3646586 Ki = 3.0 nM 8.52
CHEMBL3646450 Ki = 3.0 nM 8.52
CHEMBL3646618 Ki = 3.0 nM 8.52
CHEMBL2170089 Ki = 3.0 nM 8.52
CHEMBL3357869 Ki = 4.0 nM 8.40
CHEMBL3646584 Ki = 4.0 nM 8.40
CHEMBL2170099 Ki = 4.0 nM 8.40
CHEMBL2206908 Ki = 4.0 nM 8.40
CHEMBL2170081 Ki = 4.0 nM 8.40
CHEMBL3643923 Ki = 4.0 nM 8.40
CHEMBL3357868 Ki = 4.0 nM 8.40
CHEMBL3646557 Ki = 4.0 nM 8.40
CHEMBL3646518 Ki = 4.0 nM 8.40
CHEMBL3646543 Ki = 4.0 nM 8.40
CHEMBL3646619 Ki = 4.0 nM 8.40
CHEMBL3646634 Ki = 5.0 nM 8.30
CHEMBL3649464 Ki = 5.0 nM 8.30
CHEMBL3646478 Ki = 5.0 nM 8.30
CHEMBL2206912 Ki = 5.0 nM 8.30
CHEMBL3646484 Ki = 5.0 nM 8.30
CHEMBL2165030 Ki = 5.0 nM 8.30
CHEMBL3646623 Ki = 5.0 nM 8.30
CHEMBL3646622 Ki = 5.0 nM 8.30
CHEMBL2206906 Ki = 5.0 nM 8.30
CHEMBL3646617 Ki = 5.0 nM 8.30
CHEMBL3646502 Ki = 6.0 nM 8.22
CHEMBL3646535 Ki = 6.0 nM 8.22
CHEMBL3646507 Ki = 6.0 nM 8.22
CHEMBL3649478 Ki = 6.0 nM 8.22
CHEMBL3646479 Ki = 6.0 nM 8.22
CHEMBL3646612 Ki = 6.0 nM 8.22
CHEMBL3646573 Ki = 6.0 nM 8.22