# OnCo record gprc5d-expression (biomarker). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/biomarkers/gprc5d-expression/>
  a schema:MedicalTest ;
  onco:kind "biomarker" ;
  schema:identifier "gprc5d-expression" ;
  schema:name "GPRC5D expression"@en ;
  schema:alternateName "GPRC5D"@en, "GPRC5D-positive"@en, "GPRC5D expression myeloma"@en ;
  schema:description "GPRC5D is a receptor on myeloma cells and in hair follicles, nails and taste buds. Talquetamab targets it without any test, and the side effects on skin, nails and taste follow from where it is expressed."@en ;
  schema:url <https://onco.cc/biomarkers/gprc5d-expression/> ;
  schema:dateModified "2026-09-23"^^xsd:date ;
  schema:citation <https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=9001355e-003d-4d4e-b4ce-337e0fd14952> ;
  onco:tag "biomarker", "surface-antigen", "no-threshold" ;
  onco:related <https://onco.cc/biomarkers/bcma-expression/>, <https://onco.cc/biomarkers/fcrh5-expression/> ;
  onco:cancers <https://onco.cc/cancers/multiple-myeloma/>, <https://onco.cc/cancers/myeloma-relapsed-refractory/> ;
  onco:drugs <https://onco.cc/drugs/talquetamab/> ;
  onco:terms <https://onco.cc/terms/antigen-escape/> .