Question

while T lymphocytes are maturing, each of them develops one of two set of proteins on their cell surface. these proteins are know as _ and_

Answer 1

Ans ) The T- cells develop or express one out of the two set of proteins known as CD4 and CD8 on maturation. This protein is called coreceptor. On maturation of T cells, T cell receptors (TCR) are expressed on T cell surface called coreceptors. A nature T cell can have either CD4 or CD8(a two chain molecule). These are involved in signal transduction after the binding of antigen to TCR. CD4 binds selectively to MHC class II and CD8 to MHC class I molecules.