I downloaded my pdb file from RCSB. Cuz I want to use amber tleap, I used pdb4amber to convert the PDB file. Then the error occurred:

GLU_29 misses 4 heavy atom(s)

ARG_102 misses 6 heavy atom(s)

GLU_242 misses 4 heavy atom(s)

ARG_243 misses 6 heavy atom(s)

I then checked my pdb file downloaded from RCSB. These residues do miss some heavy atoms. What should I do then to add the missed atoms. I know what atoms missed, but just do not know how to add them.

Hope I could get your help! Thank you very much!