TIR1 recruits AUX/ IAA proteins to the SCF -TIR1 complex in an auxin-dependent manner. Once recruited by auxin, AUX/IAA proteins are ubiquitinated by the E3 ligase activity of the SCF-TIR1 complex, which marks the protein for destruction by the 26S proteasome.

TLS Online TPP Program

#Id: 3250

#Unit 6. System Physiology – Plant

Complex I catalyzes simultaneous perform obligately and coupled process

TLS Online TPP Program

#Id: 3252

#Unit 6. System Physiology – Plant

reduction of ubiquinone by hydride ion from NADH and a proton from the matrix is an exergonic process

TLS Online TPP Program

#Id: 3253

#Unit 6. System Physiology – Plant

 transfer of four protons from the matrix to the intermembrane space is an endergonic process

TLS Online TPP Program

#Id: 3255

#Unit 6. System Physiology – Plant

Complex I is therefore a proton pump

TLS Online TPP Program

#Id: 3256

#Unit 6. System Physiology – Plant

Pumping of proton is driven by the the energy transfer of electron, and the reaction it catalyzes is vectorial

TLS Online TPP Program

#Id: 3260

#Unit 6. System Physiology – Plant

 vertical movement of proton from IMS to matrix is an energy driven process which is compensate by movement of electron within the membrane