CAP–cAMP binds upstream to promoters DNA and target bends the DNA considerably about 100 degrees

TLS Online TPP Program

#Id: 9049

#Unit 4. Cell Communication and Cell Signaling

Three principal classes of G PCR that bind their ligand in different ways:

TLS Online TPP Program

#Id: 3347

#Unit 6. System Physiology – Plant

Arg residue swings aside, forming an interaction with the Asp on the adjacent c subunit in the ring and displacing the proton from that Asp; this adjacent proton exits through the second half- channel to the N side, completing the movement of one proton equivalent from outside to inside the matrix.

TLS Online TPP Program

#Id: 9366

#Unit 4. Cell Communication and Cell Signaling

Within the nucleus, R-Smads are modified by:

Phosphorylation of linker domains

Acetylation of MH1 domains

Dephosphorylation of the C-terminal serines by nuclear

phosphatases

TLS Online TPP Program

#Id: 8831

#Unit 6. System Physiology – Plant

Damage caused by singlet oxygen and its reactive products can decrease the efficiency of photosynthesis in a process known as photoinhibition.

TLS Online TPP Program

#Id: 7781

#Unit 2. Cellular Organization

A structural motif repeated several times within the Y-complex is closely related to a structure found in the COPII proteins that drive the formation of coated vesicles within cells.