TLR9 Blocking Peptide for STJ503282 is synthetically produced from the 430-460 sequence and is suitable for use in western blot applications.
Applications
Immunodepletion/Immunocompetition
Note
STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS.
Product Properties
Formulation
Liquid form at 2.5mg/ml concentration in PBS. Up to 5% DMSO can be added. Orders with >1mg can be supplied in lyophilized powder form, or in buffer of choice.
Storage Instruction
Store at-20°C for long term storage. Avoid freeze-thaw cycles.
Synthetic peptide taken within amino acid region 430-460 on human TLR9 protein.
Immunogen Region
430-460
Specificity
This blocking peptide is recommended for use in combination with TLR9 antibody, STJ503282
Additional Info
Tissue Specificity
Highly expressed in spleen, lymph node, tonsil and peripheral blood leukocytes, especially in plasmacytoid pre-dendritic cells. Levels are much lower in monocytes and CD11c+ immature dendritic cells. Also detected in lung and liver.
Post Translational Modifications
Activated by proteolytic cleavage of the flexible loop between repeats LRR14 and LRR15 within the ectodomain. Cleavage requires UNC93B1. Proteolytically processed by first removing the majority of the ectodomain by either asparagine endopeptidase (AEP) or a cathepsin followed by a trimming event that is solely cathepsin mediated and required for optimal receptor signaling. Palmitoylated by ZDHHC3 in the Golgi regulates TLR9 trafficking from the Golgi to endosomes. Depalmitoylation by PPT1 controls the release of TLR9 from UNC93B1 in endosomes.
Function
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. TLR9 is a nucleotide-sensing TLR which is activated by unmethylated cytidine-phosphate-guanosine (CpG) dinucleotides. Acts via MYD88 and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response. Controls lymphocyte response to Helicobacter infection. Upon CpG stimulation, induces B-cell proliferation, activation, survival and antibody production.
Endoplasmic Reticulum MembraneSingle-Pass Type I Membrane ProteinEarly Endosome MembraneLysosomeCytoplasmic VesiclePhagosomeGolgi Apparatus MembraneRelocalizes From Endoplasmic Reticulum To Endosome And Lysosome Upon Stimulation With AgonistExit From The Er Requires Unc93b1Endolysosomal Localization Is Required For Proteolytic Cleavage And Subsequent ActivationIntracellular Localization Of The Active Receptor May Prevent From Responding To Self Nucleic Acid
Alternative Peptide Names
Toll-Like Receptor 9 proteinCd Antigen Cd289 proteinTLR9 proteinUNQ5798 proteinPRO19605 protein
