| Label | Id | |
|---|---|---|
| D-glutamic acid monoanion | http://purl.obolibrary.org/obo/CHEBI_29986 | |
| D-aspartic acid monoanion | http://purl.obolibrary.org/obo/CHEBI_29990 | |
| L-aspartic acid monoanion | http://purl.obolibrary.org/obo/CHEBI_29991 | |
| L-cysteine acid residue | http://purl.obolibrary.org/obo/CHEBI_29950 | |
| D-cysteine acid residue | http://purl.obolibrary.org/obo/CHEBI_29951 | |
| L-arginine base residue | http://purl.obolibrary.org/obo/CHEBI_29952 | |
| D-arginine base residue | http://purl.obolibrary.org/obo/CHEBI_29953 | |
| L-aspartic acid residue | http://purl.obolibrary.org/obo/CHEBI_29958 | |
| L-lysine base residue | http://purl.obolibrary.org/obo/CHEBI_29967 | |
| D-lysine base residue | http://purl.obolibrary.org/obo/CHEBI_29968 | |
| L-glutamic acid residue | http://purl.obolibrary.org/obo/CHEBI_29972 | |
| D-tyrosine acid residue | http://purl.obolibrary.org/obo/CHEBI_29976 | |
| L-histidine base residue | http://purl.obolibrary.org/obo/CHEBI_29979 | |
| D-histidine base residue | http://purl.obolibrary.org/obo/CHEBI_29980 | |
| His | http://purl.obolibrary.org/obo/CHEBI_29979 |