LTA-BS Lipoteichoic Acid from Bacillus subtilis Lipoteichoic acid (LTA) is a major immunostimulatory component of Gram-positive bacteria. Like LPS, LTA is an amphiphile formed by a hydrophilic polyphosphate polymer linked to a neutral glycolipid. LTA stimulates immune cells through TLR2 to produce TNF-α and other inflammatory cytokines. Recognition of LTA involves also LPS-binding protein (LBP) and CD14. Specificity: TLR2 agonist Working concentration: 100 ng -1 μg/ml Endotoxin level: 10 EU/mg