cZ is thought to be less active and relatively more stable than tZ and iP because of its low affinity for CKX. cZ and its conjugates are more abundant than tZ‐ and iP‐type CKs in Z. mays, O. sativa, chickpea (Cicer arietinum) and a moss (Physcomitrella patens)

TLS Online TPP Program

#Id: 8650

#Unit 2. Cellular Organization

G1/S phase CDKs phosphorylate Cdh1 at the 

G1-S phase transition

TLS Online TPP Program

#Id: 8651

#Unit 2. Cellular Organization

S phase cyclin-CDK accumulates in late G1 , they are immediately inactivated by binding of a CKI called Sic1

TLS Online TPP Program

#Id: 8652

#Unit 2. Cellular Organization

TLS Online TPP Program

#Id: 8653

#Unit 2. Cellular Organization

Degradation of Sic1 is induced by its phosphorylation by G1/S phase CDKs.

TLS Online TPP Program

#Id: 8654

#Unit 2. Cellular Organization

Sic1 inhibitor is degraded following its ubiquitinylation by the SCF ubiquitin-protein ligase

TLS Online TPP Program

#Id: 8655

#Unit 2. Cellular Organization