Western blot analysis of CDK4 (arrow) using rabbit polyclonal CDK4 Antibody (Center C215) . 293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected with the CDK4 gene (Lane 2) (Origene Technologies).
CDK4; Cyclin-dependent kinase 4; Cell division protein kinase 4; PSK-J3
Key Feature
Clonality
Polyclonal
Isotype
Ig
Host Species
Rabbit
Tested Applications
WB
WB:1:50~100
Species Reactivity
Human
Concentration
1mg/ml
Target Information
Alternative Names
CDK4 Cyclin-dependent kinase 4 Cell division protein kinase 4 PSK-J3
Molecular Weight(MW)
33730 Da
Function
Ser/Thr-kinase component of cyclin D-CDK4 (DC) complexes that phosphorylate and inhibit members of the retinoblastoma (RB) protein family including RB1 and regulate the cell-cycle during G(1)/S transition. Phosphorylation of RB1 allows dissociation of the transcription factor E2F from the RB/E2F complexes and the subsequent transcription of E2F target genes which are responsible for the progression through the G(1) phase. Hypophosphorylates RB1 in early G(1) phase. Cyclin D-CDK4 complexes are major integrators of various mitogenenic and antimitogenic signals. Also phosphorylates SMAD3 in a cell-cycle-dependent manner and represses its transcriptional activity. Component of the ternary complex, cyclin D/CDK4/CDKN1B, required for nuclear translocation and activity of the cyclin D-CDK4 complex
Tissue Specificity
This CDK4 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 208~238 amino acids from the Center region of human CDK4.
Cellular Localization
Cytoplasm. Nucleus. Membrane. Note=Cytoplasmic when non-complexed. Forms a cyclin D-CDK4 complex in the cytoplasm as cells progress through G(1) phase. The complex accumulates on the nuclear membrane and enters the nucleus on transition from G(1) to S phase. Also present in nucleoli and heterochromatin lumps. Colocalizes with RB1 after release into the nucleus
Western blot analysis of CDK4 (arrow) using rabbit polyclonal CDK4 Antibody (Center C215) . 293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected with the CDK4 gene (Lane 2) (Origene Technologies).
Application Notes
WB:1:50~100
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Storage Buffer
Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is prepared by Saturated Ammonium Sulfate (SAS) precipitation followed by dialysis against PBS.