Plant viruses have small genomes; most encode only three to 10 proteins.

TLS Online TPP Program

#Id: 9611

#XL - T Zoology

Binding of ligand to predimerized but inactive RTK alters the conformation of the dimer in such a way that the receptor’s kinase becomes activated.

TLS Online TPP Program

#Id: 9612

#XL - T Zoology

TLS Online TPP Program

#Id: 9613

#XL - T Zoology

In the absence of insulin, the extracellular domain adopts a symmetric inverted U-shaped conformation. 

TLS Online TPP Program

#Id: 9614

#XL - T Zoology

Upon insulin binding, the extracellular domain is converted into a T-shaped conformation that brings the transmembrane domains together.

TLS Online TPP Program

#Id: 9615

#XL - T Zoology

Four related EGF receptors participate in signaling by the many members of EGF family :

In the mouse - Erb-B1, 2, 3, and 4

In humans - HER 1, 2, 3, and 4

TLS Online TPP Program

#Id: 9616

#XL - T Zoology

Homodimerization

HER1 directly binds EGF which leads to formation of a homodimer of the HER1 extracellular domain