HYBRID EVENT: You can participate in person at Rome, Italy or Virtually from your home or work.

4th Edition of World Congress on Infectious Diseases

June 23-24, 2023 | Rome, Italy

June 21 -22, 2023 | Rome, Italy
Infection 2023

Dr. Dr Uzma Saqib

Speaker at World Congress on Infectious Diseases 2023 - Dr. Dr Uzma Saqib
DAVV academic University, India
Title : Scaffolding role of TcpB in disrupting TLR4-Mal interactions: Three to tango


Toll/interleukin-1 like receptors (TLRs) are membrane-spanning proteins crucially involved in innate immunity. On activation, the cytoplasmic toll/interleukin-1 receptor (TIR) domains of these receptors undergo homo- or heterodimerization. Brucella sp. are bacterial pathogens that affect the immune system by suppressing the TLR signalling pathway. They enact this by encoding a TIR domain–containing protein, TcpB, which suppresses NF-κB activation and proinflammatory cytokine secretion mediated by TLR4 receptors. TcpB has been shown to target the Mal-mediated pathway to suppress TLR signalling. The recent identification of its mechanism of interference with TLR4 signalling involving Mal prompted us to further study the structural aspects of TcpB binding with TLR4 and Mal. Our triprotein model displays the overall scaffolding role of TcpB in anchoring TLR4 and Mal thereby inhibiting their interaction leading to the attenuation of the TLR4 pathway.


Dr. Dr Uzma Saqib is from DAVV academic University, India.