Import options

--peptide <string>

The string is a valid one or three letter sequence.

convert a one-letter sequence to a molfile:

molconvert --peptide FFKMLL mol -o peptide.mol

Export options

peptide:3

three-letter sequence

convert SMILES representation to a three-letter sequence
```
molconvert peptide:3 -s "C[C@H](N)C(O)=O"
```

convert one-letter sequence to a three-letter sequence
```
molconvert --peptide GAG peptide:3
```

peptide:1

one-letter sequence

convert the SMILES string to a one-letter sequence

molconvert peptide:1 -s "C[C@H](N)C(O)=O"