Anti-FGFR3 Antibody Picoband® Fluoro647 Conjugated

Fibroblast growth factor receptor 3, also known as CD333, is a protein that in humans is encoded by the FGFR3 gene. This gene encodes a member of the fibroblast growth factor receptor (FGFR) family, with its amino acid sequence being highly conserved between members and among divergent species. The FGFR3 gene is mapped to the HD region on chromosome 4p16.3. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. This particular family member binds acidic and basic fibroblast growth hormone and plays a role in bone development and maintenance. Mutations in this gene lead to craniosynostosis and multiple types of skeletal dysplasia.

Expressed at high level in placenta and pancreas. Also detected in CD11c+ immature dendritic cells. Only expressed in dendritic cells and not in other leukocytes, including monocyte precursors. TLR3 is the TLR that is expressed most strongly in the brain, especially in astrocytes, glia, and neurons.

Antiviral Signaling, Chemokines, Host-Virus Interaction, Immune System Diseases, Immunoglobulins, Immunology, Innate Immunity, Interspecies Interaction, Macrophage/Inflammation, Microbiology, NFKB Pathway, Nuclear Signaling, Receptors, Signal Transduction, Signaling Pathway, TLR Signaling

Key component of innate and adaptive immunity. TLRs (Toll-like receptors) control host immune response against pathogens through recognition of molecular patterns specific to microorganisms. TLR3 is a nucleotide-sensing TLR which is activated by double-stranded RNA, a sign of viral infection. Acts via the adapter TRIF/TICAM1, leading to NF-kappa-B activation, IRF3 nuclear translocation, cytokine secretion and the inflammatory response.

1. Almeida, M. R., Campos-Xavier, A. B., Medeira, A., Cordeiro, I., Sousa, A. B., Lima, M., Soares, G., Rocha, M., Saraiva, J., Ramos, L., Sousa, S., Marcelino, J. P., Correia, A., Santos, H. G. Clinical and molecular diagnosis of the skeletal dysplasias associated with mutations in the gene encoding fibroblast growth factor receptor 3 (FGFR3) in Portugal. Clin. Genet. 75: 150-156, 2009. 2. Barroso, E., Perez-Carrizosa, V., Garcia-Recuero, I., Glucksman, M. J., Wilkie, A. O., Garcia-Minaur, S., Heath, K. E. Mild isolated craniosynostosis due to a novel FGFR3 mutation, p.Ala334Thr. Am. J. Med. Genet. 155A: 3050-3053, 2011.