Cell Cycle : G1/S Check point

From Opengenome.net

http://cgap.nci.nih.gov/BIOCARTA/Pathways/h_g1Pathway.gif 

   

SMAD3

SMAD4

SMAD3

TGFb

ATM

ATR

ATM

p53

RB

ABL

RB

HDAC

RB

E2F-1

CDK2

Cyclind-CDK4-CDK6

CDK4

CDK6

CDK4

Cyclin D

SKP2

p21 ubiquitination

HDAC

RB

TGBF1

SMAD3-SMAD4 complex

TGBF1

E2F-1

CDC25A

CDK2-Cyclin E complex

CDC25A

CDK6-CDK4-Cyclin D complex

GSK3B

Growth Factor with drawal

Cyclin D

CDK4-CDK6 complex

TP53

ATM-ATR complex

TP53

p21

TFDP1

E2F-1

ART

ATM

ART

p53



Transcription factor
-TP53, TFDP1, E2F-1, RB