protein-1-letter=protein-1-letter/protein-1-letter.xml
protein-1-letter-c13-n15=protein-1-letter-c13-n15/protein-1-letter-c13-n15.xml
protein-1-letter-n15=protein-1-letter-n15/protein-1-letter-n15.xml
protein-3-letters=protein-3-letters/protein-3-letters.xml
dna=dna/dna.xml
saccharide=saccharide/saccharide.xml
nucac=nucac/nucac.xml
