In the absence of trophic factors, nonphosphorylated

Bad binds to Bcl-2, releasing Bax and Bak and allowing them to form oligomeric membrane pores and holes.

TLS Online TPP Program

#Id: 10388

#Unit 4. Cell Communication and Cell Signaling

Class II presentation can occur with either live or replication-incompetent virus; protein synthesis inhibitors had no effect, indicating that new protein synthesis is not a necessary condition of class II presentation. 

TLS Online TPP Program

#Id: 6617

#Unit 7. System Physiology – Animal

At the midpoint of the cycle, between the follicular and luteal phases, ovulation occurs.

TLS Online TPP Program

#Id: 1859

#Unit 3. Fundamental Processes

Sp1 (Mr  80,000) is a transcription activator for a large number of genes in higher eukaryotes. Its DNA binding site, the GC box consensus sequence GGGCGG.

TLS Online TPP Program

#Id: 10506

#Unit 4. Cell Communication and Cell Signaling

Human Bcl-2 and worm CED-9 both proteins contain a single TM domain and are localized to the outer mitochondrial membrane

TLS Online TPP Program

#Id: 8553

#Unit 1. Molecules and their Interaction Relevant to Biology