modeling a PEG

Question

[marco23.p]

I need to model a PEG 3000 and cannot find any such structure (I searched in the pdb, and could only find smaller molecules)

I'm not that much into molecular graphics, but I need to produce a pdb file for a PEG3000, does anyone more experienced than me have tips on how to find/do it without building it from scratch?

Answer 1

[Mensur Dlakic]

PEG 3000 may be too big and too flexible for crystallization. There are smaller ethylene glycol polymers in PDB structures such as here and here.