What is RLR in immunology?
RIG-like receptors (retinoic acid-inducible gene-I-like receptors, RLRs) are a type of intracellular pattern recognition receptor involved in the recognition of viruses by the innate immune system. The RLR receptors provide frontline defence against viral infections in most tissues.
Where are rig-I like receptors found?
cytosol
RLRs are expressed in most cell types and are primarily located in the cytosol, although recent studies showed that RIG-I may also localize to the cell nucleus27,28.
What is an RLR microbiology?
RLRs belong to the RNA helicases family that specifically detects RNA species derived from viruses in the cytoplasm (Table 1) and coordinate anti-viral programs via type I IFN induction (10).
Where are CLRs located?
C-type lectin receptor (CLR) domains are also present in a family of cell surface receptors that play an important role in the function of DCs and macrophages (see Fig. 12-3C). CLRs recognize high-density carbohydrate-based PAMPs on microbial cell walls and viral coats.
Who discovered rig?
Yoneyama et al
Our understanding of the mechanisms through which RIG-I transduces signals following viral stimulation has been significantly advanced by two breakthrough discoveries. Pioneering work by Yoneyama et al. established that RIG-I has antiviral properties and plays a key role in dsRNA-mediated IFN-β expression.
What does double stranded RNA do?
Double-strand RNA (dsRNA) is a signal for gene-specific silencing of expression in a number of organisms. ds-RNA can also suppress expression of specific genes in plants, a component of the phenomenon called cosuppression (Vionnet et al.
Is Rig 1 a TLR?
Toll-like receptors (TLRs) and RIG-I-like receptors (RLRs) constitute distinct families of pattern-recognition receptors that sense nucleic acids derived from viruses and trigger antiviral innate immune responses.
What cells express rig1?
RIG-I and MDA5 are expressed in all cell types (60), but are most well-known for their functions inside innate immune cells, such as macrophages, neutrophils, and dendritic cells, as well as in other cells like mucosal epithelial cells. They are classified as ATP-dependent DExD/H box RNA helicases.
How does lectin affect cell signaling?
Lectins are glycan-binding proteins that are involved in numerous biological processes including cell development, cell–cell interactions, or signal transduction. In innate immunity, lectins mainly act as pattern recognition receptors and bind to glycan structures (but also non-glycan ligands) on pathogens …
