R gene Mi-1 confers resistance to aphids and whiteflies

Rice R gene Bph14 confers resistance to the brown plant hopper

Melon R gene Vat confers resistance to the cotton aphid. 

All of these R genes encode NBS–LRR receptors.

TLS Online TPP Program

#Id: 8606

#XL - R Botany

M phase Cyclin–CDKs

In human - cyclin A-CDK 1

cyclin B-CDK 1

In budding yeast - CIb 1/2/3/4-Cdc 28

TLS Online TPP Program

#Id: 8607

#XL - R Botany

Cdk1 

=Cdc2 (vertebrates and fission yeast)

= Cdc28  (budding yeast)

TLS Online TPP Program

#Id: 8608

#XL - R Botany

There are three D cyclins in mammals:

cyclins D1, D2, and D3

TLS Online TPP Program

#Id: 8609

#XL - R Botany

In free CDK2, the A-loop blocks access of protein substrates to the γ phosphate of the bound ATP.

TLS Online TPP Program

#Id: 8610

#XL - R Botany

TLS Online TPP Program

#Id: 8611

#XL - R Botany

Nonphosphorylated CDK bound to one of its cyclin partners has minimal but detectable protein kinase activity in vitro, although it may be essentially inactive in vivo.