| Classes | |
| class | SubstanceNucleicAcid | 
| Nucleic acids are defined by three distinct elements: the base, sugar and linkage.  More... | |
| class | SubstanceNucleicAcidSubunit | 
| Subunits are listed in order of decreasing length; sequences of the same length will be ordered by molecular weight; subunits that have identical sequences will be repeated multiple times.  More... | |
| class | SubstanceNucleicAcidSubunitLinkage | 
| The linkages between sugar residues will also be captured.  More... | |
| class | SubstanceNucleicAcidSubunitSugar | 
| 5.3.6.8.1 Sugar ID (Mandatory).  More... | |