CD4 binding site

The CD4 binding site is a specific area on certain immune cells, like T-helper cells, where the CD4 protein is located. This protein plays a crucial role in the immune system by helping these cells recognize and respond to infections. Viruses, such as HIV, use this site to latch onto the cells and gain entry, which can weaken the immune response. Understanding the CD4 binding site is important for developing treatments and vaccines that can block such interactions and help protect the immune system.