Hinge region provide the flexibility  and  found in only IgD, IgG and IgA, while hinge region are not found in other two antibodies IgM and IgE.

TLS Online TPP Program

#Id: 9042

#Unit 4. Cell Communication and Cell Signaling

Heterotrimeric G proteins directly bind to and are activated by G protein coupled receptors.

TLS Online TPP Program

#Id: 7172

#Unit 5. Developmental Biology

Siamois and Twin interact in the organizer with the Smad2 transcription factor activated by vegetal TGF-β family members (Nodal-related proteins, Vg1, activin)

TLS Online TPP Program

#Id: 9337

#Unit 4. Cell Communication and Cell Signaling

Principal function of all 3 human TGF-β isoforms, TGF-β1, 2, and 3:

Prevent cell proliferation by inducing the synthesis of p15 INK4B

TLS Online TPP Program

#Id: 7850

#Unit 1. Molecules and their Interaction Relevant to Biology

The 6-membered cyclic form of sugars is usually called the “pyranose” form in reference to the cyclic ether pyran.

TLS Online TPP Program

#Id: 3085

#Unit 3. Fundamental Processes

Long filaments form when septum formation is inhibited, but chromosome replication is unaffected.