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Assay Detail

CHEMBL5737678

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Binding
Enzyme Activity: Determination of IC50 : The Class B enzyme activities were measured in the presence of the test inhibitor in a fluorescence assay against a commercially available substrate consisting of a cephalosporin core linking 7-hydroxycoumarin to fluorescein (CCF2-FA). The enzyme (NDM-1, IMP-1 or VIM-1) and the substrate were diluted in 100 mM KH2PO4 buffer (pH 7) containing 0.005% Tween-20 and 10 μM ZnSO4. In the assay, the final concentration of enzyme was 1 pM, 2 pM and 30 pM for NDM-1, IMP-1 and VIM-1, respectively, and the final concentration of CCF2-FA was 1.25 μM. The test inhibitor was dissolved in dimethylsulfoxide and diluted 1:50 in the assay, resulting in a final concentration range of 20 μM to 0.00063 μM. In a 384-well microplate, the test inhibitor was incubated with the metallo-β-lactamase enzyme and the substrate for 2 hours at 25° C. Fluorescence at 460 nm following excitation at 405 nm was measured. The IC50 value was determined from semi-logarithmic plots of enzyme inhibition versus inhibitor concentration, with a curve generated using a 4-parameter fit.
627
Total Activities
202
Compounds Tested
3
Activity Types
0
Assay Parameters

Assay Information

Assay Type Binding
Confidence 8 — Homologous single protein target
Curated By Autocuration

Target

Metallo-beta-lactamase type 2 (CHEMBL5465386)
Type SINGLE PROTEIN
Organism Bacteria

Publication

Metallo-beta-lactamase inhibitors and methods of use thereof
(2021)

Activity Statistics

Type Count Avg pChEMBL Best pChEMBL
IC50 209 8.60 10.22
kon 209 - -
k_off 209 - -

Compounds Tested

Compound Name Phase Activities Best pChEMBL
CHEMBL5892778 3 10.22
CHEMBL5909157 3 10.22
CHEMBL5796069 3 10.22
CHEMBL5892474 3 10.15
CHEMBL5827537 3 10.10
CHEMBL5767480 9 10.10
CHEMBL5848005 3 10.10
CHEMBL5984667 3 10.10
CHEMBL6025496 3 9.92
CHEMBL5763226 3 9.89
CHEMBL5992355 3 9.80
CHEMBL5995352 3 9.77
CHEMBL6020039 3 9.77
CHEMBL5856136 3 9.74
CHEMBL5970406 3 9.72
CHEMBL5927974 3 9.68
CHEMBL5752736 3 9.68
CHEMBL5780567 3 9.64
CHEMBL5818054 3 9.62
CHEMBL5877117 3 9.60
CHEMBL5747256 3 9.60
CHEMBL5935773 3 9.60
CHEMBL5886260 3 9.59
CHEMBL5745298 3 9.57
CHEMBL5754822 3 9.52
CHEMBL5977231 3 9.52
CHEMBL5855389 3 9.51
CHEMBL5825947 3 9.48
CHEMBL5806114 3 9.46
CHEMBL5941908 3 9.44

Activity Data

Compound Name Type Rel. Value Units pChEMBL
CHEMBL5892778 IC50 = 0.06 nM 10.22
CHEMBL5796069 IC50 = 0.06 nM 10.22
CHEMBL5909157 IC50 = 0.06 nM 10.22
CHEMBL5892474 IC50 = 0.07 nM 10.15
CHEMBL5984667 IC50 = 0.08 nM 10.10
CHEMBL5848005 IC50 = 0.08 nM 10.10
CHEMBL5767480 IC50 = 0.08 nM 10.10
CHEMBL5827537 IC50 = 0.08 nM 10.10
CHEMBL6025496 IC50 = 0.12 nM 9.92
CHEMBL5763226 IC50 = 0.13 nM 9.89
CHEMBL5992355 IC50 = 0.16 nM 9.80
CHEMBL6020039 IC50 = 0.17 nM 9.77
CHEMBL5995352 IC50 = 0.17 nM 9.77
CHEMBL5856136 IC50 = 0.18 nM 9.74
CHEMBL5970406 IC50 = 0.19 nM 9.72
CHEMBL5752736 IC50 = 0.21 nM 9.68
CHEMBL5927974 IC50 = 0.21 nM 9.68
CHEMBL5780567 IC50 = 0.23 nM 9.64
CHEMBL5818054 IC50 = 0.24 nM 9.62
CHEMBL5747256 IC50 = 0.25 nM 9.60
CHEMBL5935773 IC50 = 0.25 nM 9.60
CHEMBL5877117 IC50 = 0.25 nM 9.60
CHEMBL5886260 IC50 = 0.26 nM 9.59
CHEMBL5745298 IC50 = 0.27 nM 9.57
CHEMBL5754822 IC50 = 0.3 nM 9.52
CHEMBL5977231 IC50 = 0.3 nM 9.52
CHEMBL5855389 IC50 = 0.31 nM 9.51
CHEMBL5825947 IC50 = 0.33 nM 9.48
CHEMBL5806114 IC50 = 0.35 nM 9.46
CHEMBL5941908 IC50 = 0.36 nM 9.44
CHEMBL5958729 IC50 = 0.38 nM 9.42
CHEMBL5764003 IC50 = 0.41 nM 9.39
CHEMBL5929685 IC50 = 0.42 nM 9.38
CHEMBL5949268 IC50 = 0.43 nM 9.37
CHEMBL5739899 IC50 = 0.43 nM 9.37
CHEMBL5940214 IC50 = 0.44 nM 9.36
CHEMBL5815489 IC50 = 0.45 nM 9.35
CHEMBL6033919 IC50 = 0.45 nM 9.35
CHEMBL5913156 IC50 = 0.45 nM 9.35
CHEMBL6050949 IC50 = 0.45 nM 9.35
CHEMBL5875947 IC50 = 0.48 nM 9.32
CHEMBL5863615 IC50 = 0.48 nM 9.32
CHEMBL5886489 IC50 = 0.51 nM 9.29
CHEMBL5908904 IC50 = 0.51 nM 9.29
CHEMBL5865991 IC50 = 0.53 nM 9.28
CHEMBL5860531 IC50 = 0.53 nM 9.28
CHEMBL5840406 IC50 = 0.54 nM 9.27
CHEMBL5967625 IC50 = 0.56 nM 9.25
CHEMBL5810819 IC50 = 0.57 nM 9.24
CHEMBL5823361 IC50 = 0.62 nM 9.21