External ID: HMS1262

Protocol: NEC is stored at -80 degrees at a concentration of 15mg/ml in single use aliquots.

On the day of the screen, 20ul of purified NEC is aliquoted using a Multidrop Combi reagent dispenser into 384 well plates (Corning 3824). 100nl of compound dissolved in DMSO was transferred to each well of the assay plated via pin transfer. The plates (NEC + compound) are incubated at room temperature for 3 hours. Acceptor and donor reagents (CisBio 620/665 pair) are combined then added to each well at 5 microL volumes at a concentration of 8 nM and 80nM respectively. The plates are spun at 1k rpm for 1 min and incubated overnight at 4 degrees, then for one hour the subsequent day at room temperature.

Flourescent measurements are read on the Envision 1 plate reader at ICCB-L. The raw data consists of two fluorescence readings - at 665 nm and 620 nm for the acceptor and donor respectively.

Comment: Data analysis:
The raw data consists of two fluorescence readings - at 665 and 620 nm for the acceptor and donor respectively. The data is processed as a ratio of the emission from the acceptor over the donor (homogeneous time resolved fluorescence ratio). Normalized percent inhibition (NPI) for all experimental wells is calculated based on plate averages for negative and positive control HTRF ratio. Positives are scored as any ratio with a 50% or greater inhibition as compared with the positive control (i.e. NEC + Untagged UL50). To be considered a hit, both replicates need to score as positive. Activity scores are derived from NPI, with 100 = 100% inhibition (> 100% set to 100) and 0 = no inhibition (< 0% set to 0). Note that some compounds with NPI <50% (activity scores < 50) are classified as potential hits based on additional criteria (typically by selecting wells with low ratios compared to other experimental wells on the plate).

External ID: MCF7_OneDose

Protocol: NCI-60 Human Tumor Cell Lines Screen was performed using the standard one-dose NCI protocol, which is described in more detail at https://dtp.cancer.gov/discovery_development/nci-60/default.htm.

Compounds with GIPRCNT values below 10 were considered active. Activity score was based on GIPRCNT using the following formula:
max(-GIPRCNT/2 + 50, 0)
Score is 0 for GIPRCNT values of 100 or above, 50 for GIPRCNT values of 0, and 100 for GIPRCNT values of -100.

Comment: These data are a subset of the data from the NCI human tumor cell line screen. Compounds are identified by the NCI National Service Center (NSC) number, which is contained in the
PUBCHEM_EXT_DATASOURCE_REGID field. In the NCI cell line identification system, MCF7 is panel number 5, cell number 1. PANELCODE or PANELNAME identify the NCI-60 cell panel. PANELNBR does NOT identify the NCI-60 panel.

EXPID is the NCI internal tracking number for the experiment identifier, and PREFIX = 'S' for the NSCs submitted through the NCI Chemical Agents repository.

Substance concentration unit is indicated in the data table, using the following abbreviations: M = molar (M), u = micrograms/milliliter (microg/mL), V = volumetric fraction.

M_GIPRCNT represents the mean growth percent for that experiment, and N_GIPRCNT indicates the number of values for that NSC within an experiment, while STDEV_GIPRCNT is the standard deviation. Most NSCs are tested once per experiment, resulting in EXP_COUNT = 1.

External ID: IGROV1_OneDose

Protocol: NCI-60 Human Tumor Cell Lines Screen was performed using the standard one-dose NCI protocol, which is described in more detail at https://dtp.cancer.gov/discovery_development/nci-60/default.htm.

Compounds with GIPRCNT values below 10 were considered active. Activity score was based on GIPRCNT using the following formula:
max(-GIPRCNT/2 + 50, 0)
Score is 0 for GIPRCNT values of 100 or above, 50 for GIPRCNT values of 0, and 100 for GIPRCNT values of -100.

Comment: These data are a subset of the data from the NCI human tumor cell line screen. Compounds are identified by the NCI National Service Center (NSC) number, which is contained in the
PUBCHEM_EXT_DATASOURCE_REGID field. In the NCI cell line identification system, IGROV1 is panel number 6, cell number 10. PANELCODE or PANELNAME identify the NCI-60 cell panel. PANELNBR does NOT identify the NCI-60 panel.

EXPID is the NCI internal tracking number for the experiment identifier, and PREFIX = 'S' for the NSCs submitted through the NCI Chemical Agents repository.

Substance concentration unit is indicated in the data table, using the following abbreviations: M = molar (M), u = micrograms/milliliter (microg/mL), V = volumetric fraction.

M_GIPRCNT represents the mean growth percent for that experiment, and N_GIPRCNT indicates the number of values for that NSC within an experiment, while STDEV_GIPRCNT is the standard deviation. Most NSCs are tested once per experiment, resulting in EXP_COUNT = 1.

External ID: UIHTS20180925

Protocol: Assay overview:
The purpose of this assay is to identify test compounds that differentially kill either epithelial cells or mesenchymal cells, critical components of EMT. The PC-3E+ and TEM4-18 cell lines, characterized as epithelial cells and mesenchymal cells respectively, were established in Henry Lab (Ref 1). For potential discriminative modulators of EMT, the two cells lines were labeled with GFP and mCherry respectively, and co-cultured together to eliminate those hits that non-discriminatingly kill both epithelial cells and mesenchymal cells by cytotoxicity irrelevant to the EMT properties.
Protocol for the EMT project:
The primary screening data were generated as described in HTS assay protocol table (Ref 2).

Table 1: HTS assay protocol table
Step Parameter Value Description
1. Plate cells 200 uL By MultiFlo. PC3E GFP 2,000 cells/ well and TEM418 mCherry 2,000 cells/well (1:1). Overnight incubation
2. Remove media Flip the plate
3. Add fresh media 150 uL By MultiFlo
4. Controls 200 uL C01-H01, C12 -H12, Hygromycin dose response from H to C were positive control. Wells A01, B01, A12 and B12 were negative control
5. Library 50 uL MSSP library 1 uM final from middle plate in full media
6. Incubation 72 hrs 37 C and 5% CO2
7. Assay readout GFP and mCherry channel imaging Perkin Elmer Operetta high content imaging system, with Harmony image analysis software.
8. Image analysis Green cells and Read cells counting Normalized to the average cell number of well B1 and B12 (no inhibition of cell viability) controls on each plate to get relative cell viability for each well.
9. Hit selection 11 hits The hit criteria for preferential cell killing are compounds that Redcells_Normalized is lower or equal 0.41, GreenCells_Normalized is higher or equal
0.55, RedCells/GreenCells_Normalized ratio is lower or equal 0.65, and Non-fluorescent by itself for Red cell killing OR Greencells_Normalized is
lower or equal 0.41, RedCells_Normalized is higher or equal 0.46, RedCells/GreenCells_Normalized ratio is higher or equal 1.8 and Non-fluorescent
by itself for Green cell killing.

The primary screening data (imaging data) were translated into Green or Red cell numbers in each well in the data file.

Comment: Preferential killing compounds are considered as active hits (score of 100) when meeting one of two groups of criteria:

1. Compounds that Redcells_Normalized is lower or equal 0.41, GreenCells_Normalized is higher or equal 0.55, RedCells/GreenCells_Normalized ratio is lower or equal 0.65, and Non-fluorescent by itself for Red cell killing.

OR

2. Greencells_Normalized is lower or equal 0.41, RedCells_Normalized is higher or equal 0.46, RedCells/GreenCells_Normalized ratio is higher or equal 1.8 and Non-fluorescent by itself for Green cell killing.

External ID: CHEMBL4303819

Protocol: N/A

Comment: Target ChEMBL ID: CHEMBL4303835
ChEMBL Target Name: SARS-CoV-2
ChEMBL Target Type: ORGANISM - Target is a complete organism
Relationship Type: N - Non-molecular target assigned
Confidence: Target assigned is non-molecular

Data Source: SARS-CoV-2 Screening Data