Clec6a
Domain
A short stretch of the intracellular domain (AA 8-14) proximal to the transmembrane domain is required for association with Fc receptor gamma chain.
Function
Calcium-dependent lectin that acts as a pattern recognition receptor (PRR) of the innate immune system: specifically recognizes and binds alpha-mannans on C.albicans hypheas (PubMed:17050534, PubMed:19703985, PubMed:20493731). Binding of C.albicans alpha-mannans to this receptor complex leads to phosphorylation of the immunoreceptor tyrosine-based activation motif (ITAM) of FCER1G, triggering activation of SYK, CARD9 and NF-kappa-B, consequently driving maturation of antigen-presenting cells and shaping antigen-specific priming of T-cells toward effector T-helper 1 and T-helper 17 cell subtypes (PubMed:17050534, PubMed:19703985, PubMed:20493731, PubMed:32358020). Recognizes also, in a mannose-dependent manner, allergens from house dust mite and fungi, by promoting cysteinyl leukotriene production (PubMed:19124755). Recognizes soluble elements from the eggs of Shistosoma mansoni altering adaptive immune responses (PubMed:21059925).
Tissue Specificity
Expressed by the XS52 DC (dendritic cell) line (at protein level). Expressed constitutively by the epidermis, and skin resident DC appear to be the major source of this expression. Expressed in the spleen and thymus. Expression was undetectable in non-DC lines, including macrophage lines (J774 and Raw), T-cell lines (7-17, HDK-1, and D10), B-cell hybridoma (5C5), a keratinocyte line (Pam 212), and a fibroblast line (NS01).
Cellular localization
- Cell membrane
- Single-pass type II membrane protein
Alternative names
Clec4n, Clecsf10, Dectin2, Clec6a, C-type lectin domain family 6 member A, C-type lectin superfamily member 10, Dendritic cell-associated C-type lectin 2, DC-associated C-type lectin 2, Dectin-2