In order to avoid security-related warning messages when switching to secured connection, you may want either to:

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Input Page

The input page allows you to submit a query molecule either by writing/pasting the SMILES in the input text box, or by using the molecular sketcher on the right for drawing/importing any molecular structure.
The content of the text box and the sketcher are synchronized.

You have the possibility to load examples as shown in the image below.

You can also select the species of protein targets for which the prediction will be made (default: human).
Clickable snapshot