---
type: "example"
title: "MolecularDefinition Example: moleculardefinition-example-sequence-a-aa-iupac"
resource: "MolecularDefinition"
example: "moleculardefinition-example-sequence-a-aa-iupac"
---
# MolecularDefinition Example: moleculardefinition-example-sequence-a-aa-iupac

## Example XML



```xml
<?xml version="1.0" encoding="UTF-8"?>
<MolecularDefinition xmlns="http://hl7.org/fhir">
    <id value="example-sequence-a-aa-iupac"/>
    <moleculeType>
        <coding>
            <system value="http://hl7.org/fhir/sequence-type"/>
            <code value="aa"/>
            <display value="AA Sequence"/>
        </coding>
    </moleculeType>
    <representation>
        <literal>
            <encoding>
                <coding>
                    <code value="aa-1-noamb-20common"/>
                    <display value="Amino acid, 1 letter, no ambiguity, 20 common"/>
                </coding>
            </encoding>
            <value value="A"/>
        </literal>
    </representation>
</MolecularDefinition>
```