PD-1 has a structure similar to CTLA-4 and when activated negatively regulates T-cell function by inducing apoptosis of activated T cells. 

TLS Online TPP Program

#Id: 1390

#Unit 4. Cell Communication and Cell Signaling

Myosin V family of proteins, the most processive myosin motors known, transport cargo along actin filaments.

TLS Online TPP Program

#Id: 5868

#Unit 10. Ecological Principles

The richness of some areas is increased by the presence of corridors

TLS Online TPP Program

#Id: 9812

#Unit 6. System Physiology – Plant

There are five phytochrome isoforms in angiosperms

TLS Online TPP Program

#Id: 6390

#Unit 2. Cellular Organization

CAP–cAMP increases the rate of formation of the closed promoter complex, CAP–cAMP provides CPC for conversion to the open promoter complex.  Thus, the net effect of CAP–cAMP is to increase the rate of open promoter complex formation.

TLS Online TPP Program

#Id: 1749

#Unit 4. Cell Communication and Cell Signaling

Corticosteroids and prostaglandins can also decrease expression of class II MHC molecules.