IL-1β receptors contain a globular TIR domain; binding of IL-1β to IL-1 receptors triggers dimerization

TLS Online TPP Program

#Id: 9836

#Unit 6. System Physiology – Plant

CONSTITUTIVE PHOTOMORPHOGENESIS1 (COP1), another negative regulator of photomorphogenesis, is a component of the E3 ubiquitin ligase complex that targets photomorphogenesis-promoting proteins for degradation such as phyA, phyB.

TLS Online TPP Program

#Id: 9837

#Unit 6. System Physiology – Plant

COP1 is found in the nucleus in the dark and in the cytoplasm in the light. COP1 movement into the nucleus in the dark requires the COP9 signalosome (CSN) complex

TLS Online TPP Program

#Id: 9838

#Unit 6. System Physiology – Plant

In the dark, COP1, an E3 ligase, ubiquitinates HY5.

TLS Online TPP Program

#Id: 9839

#Unit 6. System Physiology – Plant

TLS Online TPP Program

#Id: 9840

#Unit 6. System Physiology – Plant

Plant phytochrome is an autophosphorylating

serine/threonine kinase that may phosphorylate

other proteins

TLS Online TPP Program

#Id: 9841

#Unit 6. System Physiology – Plant

Three distinct classes of photoreceptors mediate the effects of UV-A/blue light (320–500 nm): the cryptochromes, phototropins and the ZEITLUPE (ZTL) family of proteins