TAT-Gap19(I130A) is a control peptide for TAT-Gap19, a Cx43 hemichannel blocker. TAT-Gap19(I130A) consists of TAT-GAP19 with a I130A amino acid residue change at a key residue for GAP19 activity. In C6 glioma cells expression Cx43, TAT-GAP19(1130A) does not inhibit [Ca2+]i-triggered ATP release at 200 μM. TAT-Gap19(I130A) is cell permeable.
Duramycin is a cyclic peptide lantibiotic derived from Streptomyces cinnamoneuma. Duramycin interacts with phosphatidylethanolamine (PE) and has antibacterial, antiviral effects. Duramycin stimulates chloride secretion in airway epithelium and has the potential for cystic fibrosis treatment.
BI-1950 is a highly potent lymphocyte function associated antigen-1 (LFA-1) inhibitor and the LFA-1 is an essential component in normal immune system function and a target for drug discovery[1].