Recombinant Human Leukocyte immunoglobulin-like receptor subfamily A member 4 (LILRA4), Truncated

Uniprot Id

P59901

Target Species

Human

Target Name

LILRA4

Target Full Name

Leukocyte immunoglobulin-like receptor subfamily A member 4

Target Function

Functions coreceptor to limit the innate immune responses to viral infections; signaling occurs via FCER1G. Down-regulates the production of IFNA1, IFNA2, IFNA4, IFNB1 and TNF by plasmacytoid dendritic cells that have been exposed to influenza virus or cytidine-phosphate-guanosine (CpG) dinucleotides, indicating it functions as negative regulator of TLR7 and TLR9 signaling cascades. Down-regulates interferon production in response to interaction with BST2 on HIV-1 infected cells. Activates a signaling cascade in complex with FCER1G that results in phosphorylation of Src family and Syk kinases and thereby triggers mobilization of intracellular Ca(2+). Does not interfere with the differentiation of plasmacytoid dendritic cells into antigen-presenting cells.

Target Subcellular Location

Cell membrane; Single-pass type I membrane protein.

Target Tissue Specificity

Detected on plasmacytoid dendritic cells (at protein level). Detected on plasmacytoid dendritic cells, but not on monocytes or B cells.

Target Synonyms

LILRA4; ILT7; Leukocyte immunoglobulin-like receptor subfamily A member 4; CD85 antigen-like family member G; Immunoglobulin-like transcript 7; ILT-7; CD antigen CD85g

Target Background

This gene encodes an immunoglobulin-like cell surface protein that is expressed predominantly on plasmacytoid dendritic cells (PDCs) and modulates the function of these cells in the immune response. Expression of this gene is downregulated by interleukin 3 (IL3). This gene is one of a cluster of highly related genes located at chromosomal region 19q13.4.