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Assay Detail

CHEMBL5735587

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Binding
Fluorescence-Based Amplex Red Glutamic Acid Assay : The PSMA inhibitory activity was determined using a modification of the fluorescence-based Amplex Red Glutamic Acid Assay. Briefly, lysates of LNCaP cell extracts (25 μL) were incubated with the inhibitor (12.5 μL) in the presence of 4 μM N-acetylaspartylglutamate (NAAG) (12.5 μL) for 120 min. The amount of the glutamate released by NAAG hydrolysis was measured by incubating with a working solution (50 μL) of the Amplex Red Glutamic Acid Kit for 60 min. Fluorescence was measured with a VICTOR3V multilabel plate reader with excitation at 490 nm and emission at 642 nm. Inhibition curves were determined using semi-log plots and IC50 values were determined at the concentration at which enzyme activity was inhibited by 50%. Enzyme inhibitory constants (Ki values) were generated using the Cheng-Prusoff conversion. Assays were performed in triplicate.
192
Total Activities
35
Compounds Tested
4
Activity Types
0
Assay Parameters

Assay Information

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

Target

Glutamate carboxypeptidase 2 (CHEMBL1892)
Type SINGLE PROTEIN
Organism Homo sapiens

Publication

Scaffolds and multifunctional intermediates for imaging PSMA and cancer therapy
(2020)

Activity Statistics

Type Count Avg pChEMBL Best pChEMBL
kon 64 - -
k_off 64 - -
Ki 40 8.28 11.00
IC50 24 6.78 8.89

Compounds Tested

Compound Name Phase Activities Best pChEMBL
CHEMBL6007312 3 11.00
CHEMBL5866602 3 10.77
CHEMBL5786057 3 10.70
CHEMBL5994140 3 10.52
CHEMBL6010838 3 10.44
CHEMBL5753520 3 10.00
CHEMBL5872050 6 9.59
CHEMBL5838159 3 9.52
CHEMBL5805978 9 9.49
CHEMBL6005785 3 9.46
CHEMBL5925100 6 9.40
CHEMBL5916840 9 9.05
CHEMBL5963808 3 8.96
CHEMBL5746508 9 8.32
CHEMBL5938409 6 8.22
CHEMBL5937105 6 8.08
CHEMBL6048554 6 8.03
CHEMBL5868544 6 8.01
CHEMBL5840459 6 7.92
CHEMBL5975735 9 7.89
CHEMBL5945455 3 7.85
CHEMBL5938689 6 7.70
CHEMBL5828478 6 7.68
CHEMBL5778856 6 7.66
CHEMBL6033575 6 7.66
CHEMBL6019810 9 7.42
CHEMBL5759187 3 7.38
CHEMBL5960511 6 7.38
CHEMBL5932131 6 6.89
CHEMBL5939471 6 6.57

Activity Data

Compound Name Type Rel. Value Units pChEMBL
CHEMBL6007312 Ki = 0.01 nM 11.00
CHEMBL5866602 Ki = 0.017 nM 10.77
CHEMBL5786057 Ki = 0.02 nM 10.70
CHEMBL5994140 Ki = 0.03 nM 10.52
CHEMBL6010838 Ki = 0.036 nM 10.44
CHEMBL5753520 Ki = 0.1 nM 10.00
CHEMBL5872050 Ki = 0.26 nM 9.59
CHEMBL5838159 Ki = 0.3 nM 9.52
CHEMBL5805978 Ki = 0.32 nM 9.49
CHEMBL5805978 Ki = 0.32 nM 9.49
CHEMBL6005785 Ki = 0.35 nM 9.46
CHEMBL5925100 Ki = 0.4 nM 9.40
CHEMBL5916840 Ki = 0.9 nM 9.05
CHEMBL5916840 Ki = 0.9 nM 9.05
CHEMBL5963808 Ki = 1.1 nM 8.96
CHEMBL5872050 IC50 = 1.3 nM 8.89
CHEMBL5805978 IC50 = 1.6 nM 8.80
CHEMBL5925100 IC50 = 2.0 nM 8.70
CHEMBL5916840 IC50 = 4.3 nM 8.37
CHEMBL5746508 Ki = 4.8 nM 8.32
CHEMBL5746508 Ki = 4.8 nM 8.32
CHEMBL5938409 Ki = 6.0 nM 8.22
CHEMBL5937105 Ki = 8.3 nM 8.08
CHEMBL6048554 Ki = 9.3 nM 8.03
CHEMBL5868544 Ki = 9.7 nM 8.01
CHEMBL5840459 Ki = 12.0 nM 7.92
CHEMBL5975735 Ki = 13.0 nM 7.89
CHEMBL5975735 Ki = 13.0 nM 7.89
CHEMBL5945455 Ki = 14.0 nM 7.85
CHEMBL5938689 Ki = 20.0 nM 7.70
CHEMBL5828478 Ki = 21.0 nM 7.68
CHEMBL6033575 Ki = 22.0 nM 7.66
CHEMBL5778856 Ki = 22.0 nM 7.66
CHEMBL5746508 IC50 = 24.0 nM 7.62
CHEMBL5938409 IC50 = 30.0 nM 7.52
CHEMBL6019810 Ki = 38.0 nM 7.42
CHEMBL6019810 Ki = 38.0 nM 7.42
CHEMBL5937105 IC50 = 41.0 nM 7.39
CHEMBL5960511 Ki = 42.0 nM 7.38
CHEMBL5759187 Ki = 42.0 nM 7.38
CHEMBL6048554 IC50 = 46.0 nM 7.34
CHEMBL5840459 IC50 = 60.0 nM 7.22
CHEMBL5975735 IC50 = 86.0 nM 7.07
CHEMBL5828478 IC50 = 100.0 nM 7.00
CHEMBL5938689 IC50 = 104.0 nM 6.98
CHEMBL6033575 IC50 = 113.0 nM 6.95
CHEMBL5778856 IC50 = 120.0 nM 6.92
CHEMBL5932131 Ki = 130.0 nM 6.89
CHEMBL6019810 IC50 = 192.0 nM 6.72
CHEMBL5960511 IC50 = 210.0 nM 6.68