The activation of RIPK1 kinase is a key decisive event that can initiate cell death by either apoptosis or necroptosis.

TLS Online TPP Program

#Id: 4765

#Unit 5. Developmental Biology

 PIE -1, is necessary for germline cell fate.

TLS Online TPP Program

#Id: 10414

#Unit 4. Cell Communication and Cell Signaling

Growth factors that stimulate angiogenesis:

Basic fibroblast growth factor, TGF-α, and VEGF

TLS Online TPP Program

#Id: 10094

#Unit 4. Cell Communication and Cell Signaling

Activation of integrins involves:

Conformational changes near the propeller and 

 βA domains

Separation of the transmembrane and cytoplasmic domains

TLS Online TPP Program

#Id: 10381

#Unit 4. Cell Communication and Cell Signaling

IL-4 increases expression of class II molecules in resting B cells, turning them into more efficient APCs.

TLS Online TPP Program

#Id: 7066

#Unit 3. Fundamental Processes

Multiple tRNAs representing the same amino acid are called isoaccepting tRNAs; because they are all recognized by the same synthetase, they are also described as its cognate tRNAs.