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# Type: nodeidentifier
_A URI, CURIE or BNODE that represents a node in a model._
URI: [https://CCPBioSim.ac.uk/biosim-schema/nodeidentifier](https://CCPBioSim.ac.uk/biosim-schema/nodeidentifier)
## Type Properties
| Property | Value |
| --- | --- |
| Base | `NodeIdentifier` |
| Type URI | [shex:nonLiteral](http://www.w3.org/ns/shex#nonLiteral) |
| Representation | `str` |
## Notes
* If you are authoring schemas in LinkML YAML, the type is referenced with the lower case "nodeidentifier".
## Identifier and Mapping Information
### Schema Source
* from schema: https://CCPBioSim.ac.uk/biosim-schema/
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | https://CCPBioSim.ac.uk/biosim-schema/nodeidentifier |
| native | https://CCPBioSim.ac.uk/biosim-schema/nodeidentifier |