In the absence of ATP, the myosin head is firmly attached to the actin filament. 

TLS Online TPP Program

#Id: 7967

#Section 3: Genetics, Cellular and Molecular Biology

Hydrolysis of the bound GTP accompanies disassembly of the SRP and SRP receptor and initiates transfer of the nascent chain and ribosome to a site on the ER membrane, where translocation can take place.

TLS Online TPP Program

#Id: 10298

#Section 2: General Biology

T-cell education

TLS Online TPP Program

#Id: 8336

#Section 3: Genetics, Cellular and Molecular Biology

Actin filament treadmilling is accelerated by:

Profilin and Cofilin

TLS Online TPP Program

#Id: 10315

#Section 2: General Biology

Cancer cells influence the behavior of the fibroblasts and immune cells.

TLS Online TPP Program

#Id: 10324

#Section 2: General Biology

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