FLT3 is a general dendritic cell marker expressed across DC progenitors and mature DC subsets. FCER1A (high-affinity IgE receptor), CD1C, CLEC10A, and IRF4 show enriched expression in cDC2s specifically, with IRF4 being a transcription factor involved in cDC2 differentiation and function. Together these markers identify cDC2B and distinguish them from cDC1 and other dendritic cell subsets.