Table.
Pattern Recognition Receptors | |
---|---|
Membrane-bound PRRs | Cytoplasmic PRRs |
Toll-like Receptors (TLRs) | NOD-like receptors
|
C-type lectin Receptors (CLRs)
|
RIG-I-like receptors (RLRs) |
Four different classes of pattern recognition receptor (PRR) families have been identified. These PRRs are expressed in macrophages and dendritic cells and also in various immune cells. They include transmembrane proteins such as the Toll-like receptors (TLRs), and C-type lectin receptors (CLRs). Cytoplasmic proteins are the NOD-like receptors (NLRs), and Retinoic acid inducible gene (RIG)-I-like receptors (RLRs).