Genes expected to be absent, or expressed at a notably low level, in these cells, and whose absence supports the assignment of this cell annotation.
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Rationale
PECAM1 (CD31) and CDH5 (VE-cadherin) are pan-endothelial markers present across all endothelial subtypes. MECOM and ENPEP further confirm endothelial identity. Together these markers define the endothelial cell compartment encompassing capillary, arterial, venous, and lymphatic EC subtypes.
