CLEC-1

CLEC-1, encoded by CLEC1A, is a type II transmembrane C-type lectin receptor expressed predominantly on dendritic cells. Situated within the DNGR/CLEC-2 subgroup of the C-type lectin superfamily, it pairs a short cytoplasmic tail with a single extracellular carbohydrate-recognition domain. Its cytoplasmic region contains an ITIM-like motif, hinting at inhibitory or immunomodulatory signaling, yet its physiological ligand remains poorly defined. Expression is largely restricted to myeloid and plasmacytoid dendritic-cell populations, suggesting a role in tuning adaptive-immune priming. Recombinant CLEC-1 protein serves studies of dendritic-cell biology and lectin-receptor signaling within this less-characterized branch of the receptor family.