http://hl7.org/fhir/StructureDefinition/SubstanceNucleicAcid|4.0.1

Nucleic acids are defined by three distinct elements: the base, sugar and linkage. Individual substance/moiety IDs will be created for each of these elements. The nucleotide sequence will be always entered in the 5’-3’ direction.
NameFlagsCardTypeDescription & Constraints
SubstanceNucleicAcid
0..*Nucleic acids are defined by three distinct elements: the base, sugar and linkage. Individual substance/moiety IDs will be created for each of these elements. The nucleotide sequence will be always entered in the 5’-3’ direction
 
sequenceType
Σ
0..1CodeableConceptThe type of the sequence shall be specified based on a controlled vocabulary
 
numberOfSubunits
Σ
0..1integerThe number of linear sequences of nucleotides linked through phosphodiester bonds shall be described. Subunits would be strands of nucleic acids that are tightly associated typically through Watson-Crick base pairing. NOTE: If not specified in the reference source, the assumption is that there is 1 subunit
 
areaOfHybridisation
Σ
0..1stringThe area of hybridisation shall be described if applicable for double stranded RNA or DNA. The number associated with the subunit followed by the number associated to the residue shall be specified in increasing order. The underscore “” shall be used as separator as follows: “Subunitnumber Residue”
 
oligoNucleotideType
Σ
0..1CodeableConcept(TBC)
 
subunit
Σ
0..*BackboneElementSubunits 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
 
 
subunit
Σ
0..1integerIndex of linear sequences of nucleic acids in order of decreasing length. Sequences of the same length will be ordered by molecular weight. Subunits that have identical sequences will be repeated and have sequential subscripts
 
 
sequence
Σ
0..1stringActual nucleotide sequence notation from 5' to 3' end using standard single letter codes. In addition to the base sequence, sugar and type of phosphate or non-phosphate linkage should also be captured
 
 
length
Σ
0..1integerThe length of the sequence shall be captured
 
 
sequenceAttachment
Σ
0..1Attachment(TBC)
 
 
fivePrime
Σ
0..1CodeableConceptThe nucleotide present at the 5’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the first position in the sequence. A separate representation would be redundant
 
 
threePrime
Σ
0..1CodeableConceptThe nucleotide present at the 3’ terminal shall be specified based on a controlled vocabulary. Since the sequence is represented from the 5' to the 3' end, the 5’ prime nucleotide is the letter at the last position in the sequence. A separate representation would be redundant
 
 
linkage
Σ
0..*BackboneElementThe linkages between sugar residues will also be captured
 
 
 
connectivity
Σ
0..1stringThe entity that links the sugar residues together should also be captured for nearly all naturally occurring nucleic acid the linkage is a phosphate group. For many synthetic oligonucleotides phosphorothioate linkages are often seen. Linkage connectivity is assumed to be 3’-5’. If the linkage is either 3’-3’ or 5’-5’ this should be specified
 
 
 
identifier
Σ
0..1IdentifierEach linkage will be registered as a fragment and have an ID
 
 
 
name
Σ
0..1stringEach linkage will be registered as a fragment and have at least one name. A single name shall be assigned to each linkage
 
 
 
residueSite
Σ
0..1stringResidues shall be captured as described in 5.3.6.8.3
 
 
sugar
Σ
0..*BackboneElement5.3.6.8.1 Sugar ID (Mandatory)
 
 
 
identifier
Σ
0..1IdentifierThe Substance ID of the sugar or sugar-like component that make up the nucleotide
 
 
 
name
Σ
0..1stringThe name of the sugar or sugar-like component that make up the nucleotide
 
 
 
residueSite
Σ
0..1stringThe residues that contain a given sugar will be captured. The order of given residues will be captured in the 5‘-3‘direction consistent with the base sequences listed above