B-cell survival in the follicle is dependent on access to the TNF-family member cytokine B-cell activation factor (BAFF), otherwise known as B lymphocyte survival factor (BLyS), which is secreted by the FDCs.

TLS Online TPP Program

#Id: 5527

#Unit 7. System Physiology – Animal

In early proximal convoluted tubule sodium is reabsorbed by co-transport along with glucose, amino acids, & other solutes.

TLS Online TPP Program

#Id: 1354

#Unit 4. Cell Communication and Cell Signaling

The SH2 domain binds strongly to any peptide containing a critical four-residue core sequence:  phosphotyrosine–glutamic acid–glutamic acid–isoleucine

TLS Online TPP Program

#Id: 493

#Unit 2. Cellular Organization

S/MARs are constitutive (continuously bound to the matrix or scaffold), or facultative and change their interactions with the matrix depending on cell type or other conditions.

TLS Online TPP Program

#Id: 9628

#Unit 4. Cell Communication and Cell Signaling

c-Cbl 

adds a single ubiquitin to a given lysine of a protein

TLS Online TPP Program

#Id: 6003

#Unit 3. Fundamental Processes

A eukaryotic genome is divided into multiple replicons, and the origin in each replicon is activated once and only once in a single division cycle.