OpenBabel node fasta -> smiles force to be peptide?

I have a knime table with a list of short peptides which I'm converting from "fasta" to "smiles" format using the OpenBabel node.

Some strings, e.g. CKARMVS are being interpreted as DNA, in this case:

O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O)N)N)N)n1cnc2cnc(N)nc12)n1cnc2c(N)ncnc12)N)n1c(=O)nc(N)cc1.O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O[P@@](=O)(O)OC[C@H]1O[C@H](C[C@@H]1O)n1cnc2c(=O)[nH]c(N)nc12)N)n1c(=O)[nH]c(=O)c(C)c1)n1c(=O)nccc1)N)N)N   

Is there a way to force these to be interpreted as peptides?

Cheers,

Steve.

Hi Steve,

I'm afraid I'm not aware of any way to do that.

Best,

Jon

Might be able to do with with string replacements, although a little tedious!

Steve