I want to dock ion with polymer so

- what will be the best software for this?

- How to build the polymer? I tried to download it but no data base has a ready polymer to download.

If I will build it from scratch, how many monomers will be built as a start point?

- During docking, Should I specify a certain site of interaction or, Since, the polymer is repeated monomers then no need for that and I can specify random pocket?

- If there is any paper, recommendation or advice, I'm willing to hear.

Thanks in advance