From: Ernesto Aleksei Delgado Hurtado (erdelgado_at_udec.cl)
Date: Mon Aug 26 2019 - 17:54:26 CDT

Hello

Did you manually change the name in the PDB to ACE?
If ACE appears as PRES that means is a patch, not a residue type. In the
segment CP1 you have to change the patch from NTER to ACE