Moreover, cellular localization analysis demonstrated that FAM-labeled ZPDGFRβ affibody co-localized well with PDGFRβ and with NG2 (Figure 3(C) and Supplementary Figure S1), suggesting that the ZPDGFRβ affibody was predominantly distributed on pericytes in the mural of tumor blood vessels. The gene discussed is PDGFRB; the disease is neoplasm.