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. 2016 Oct 20;12(10):e1005950. doi: 10.1371/journal.ppat.1005950

Table 1. Summary of names, PubChem IDs, and the minimal concentrations defined to enhance HSV-2 infection*.

The epigenetics compound library contains 129 small molecule compounds that are classified into inhibitors of histone deacetylases (HDACi), lysine demethylases, histone acetyltransferases (HATs), DNA methyltransferases (Dnmts), and the epigenetic reader domain inhibitors, to name a few. Thirteen compounds showed enhancement effect on infection, while no compounds showed inhibitory effect. To quantitatively describe their effect on HSV-2 infection, we determined the concentration that would cause 20% changes in cell viability from HSV-2-infected controls. In this regard, the compounds were series diluted and tested on Vero cells in triplicated samples. An MOI of 1 was used for infections. HSV infection causes cytolytic effect that was determined at 48–60 hr PI by an MTT assay.

Name PubChem CID EC20 (nM) Inhibitor of
Trichostatin A 444732 30 HDAC
Quisinostat 11538455 30 HDAC
CUDC-907 54575456 30 HDAC, PI3K
CUDC-101 24756910 100 HDAC
Givinostat 9804992 100 HDAC
HDAC-42 6918848 100 HDAC
Pracinostat 49855250 300 HDAC
Scriptaid 5186 300 HDAC
Tubastatin A 57336514 3000 HDAC
JQ1 46907787 50 BET bromodomain
PFI-1 71271629 100 BET bromodomain
I-BET-762 46943432 300 BET bromodomain
TG101348 16722836 1000 BET bromodomain, JAK

* The concentration that causes a 20% (EC20) reduction in OD readings was given as a minimal concentration required to enhance HSV infection.