Monomeric G proteins are evolutionarily ancient, as evidenced by their widespread functions examples include: 

eIF2

EF1α and EF2

Ran

Sar

Rab

Rho, Rac, and Cdc42

TLS Online TPP Program

#Id: 2336

#Unit 3. Fundamental Processes

The protein DskA  also plays an important role. It binds to RNA polymerase and reduces the lifetimes of the rrn open promoters to a level at which they are responsive to changes in iNTP and ppGpp concentrations. 

TLS Online TPP Program

#Id: 9480

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 10529

#Unit 4. Cell Communication and Cell Signaling

Annexin V

a 36-kDa calcium-binding protein, binds to PS; used to detect PS that is exposed on the outside of apoptotic cells

TLS Online TPP Program

#Id: 5032

#Unit 3. Fundamental Processes

FtsZ functions at an early stage of septum formation.

Early in the division cycle, FtsZ is localized throughout the cytoplasm, but prior to cell division FtsZ becomes localized in a ring around the circumference at the mid-cell position.

The structure is called the Z-ring.

TLS Online TPP Program

#Id: 1666

#Unit 4. Cell Communication and Cell Signaling

Phase II where effectiveness against the pathogen in question is evaluated.