Validated using a knockout cell line
Recombinant
RabMAb

Recombinant Anti-Cdk4 antibody [EPR17525] - BSA and Azide free (ab236019)

Overview

  • Product name

    Anti-Cdk4 antibody [EPR17525] - BSA and Azide free
    See all Cdk4 primary antibodies
  • Description

    Rabbit monoclonal [EPR17525] to Cdk4 - BSA and Azide free
  • Host species

    Rabbit
  • Tested applications

    Suitable for: IP, ICC/IF, WBmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant fragment within Human Cdk4 aa 200 to the C-terminus. The exact sequence is proprietary.
    Database link: P30285

  • Positive control

    • WB: Wild-type HAP1 whole cell lysate. HeLa whole cell lysate.
  • General notes

    Ab236019 is the carrier-free version of ab199728. This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.

     

    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    ab236019 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    This product is a recombinant rabbit monoclonal antibody.

Properties

Applications

Our Abpromise guarantee covers the use of ab236019 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IP Use at an assay dependent concentration.
ICC/IF Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Detects a band of approximately 34 kDa (predicted molecular weight: 34 kDa).

Target

  • 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.
  • Involvement in disease

    Defects in CDK4 are a cause of susceptibility to cutaneous malignant melanoma type 3 (CMM3) [MIM:609048]. Malignant melanoma is a malignant neoplasm of melanocytes, arising de novo or from a pre-existing benign nevus, which occurs most often in the skin but also may involve other sites.
  • Sequence similarities

    Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. CDC2/CDKX subfamily.
    Contains 1 protein kinase domain.
  • Post-translational
    modifications

    Phosphorylation at Thr-172 is required for enzymatic activity. Phosphorylated, in vitro, at this site by CCNH-CDK7, but, in vivo, appears to be phosphorylated by a proline-directed kinase. In the cyclin D-CDK4-CDKN1B complex, this phosphorylation and consequent CDK4 enzyme activity, is dependent on the tyrosine phosphorylation state of CDKN1B. Thus, in proliferating cells, CDK4 within the complex is phosphorylated on Thr-172 in the T-loop. In resting cells, phosphorylation on Thr-172 is prevented by the non-tyrosine-phosphorylated form of CDKN1B.
  • Cellular localization

    Cytoplasm. Nucleus. Membrane. 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.
  • Information by UniProt
  • Database links

  • Alternative names

    • Cdk 4 antibody
    • cdk4 antibody
    • CDK4 protein antibody
    • CDK4_HUMAN antibody
    • Cell division kinase 4 antibody
    • Cell division protein kinase 4 antibody
    • CMM 3 antibody
    • CMM3 antibody
    • Crk3 antibody
    • Cyclin dependent kinase 4 antibody
    • Cyclin-dependent kinase 4 antibody
    • Melanoma cutaneous malignant 3 antibody
    • MGC14458 antibody
    • p34 cdk4 antibody
    • PSK J3 antibody
    • PSK-J3 antibody
    see all

Images

  • Lane 1: Wild-type HAP1 whole cell lysate (20 µg)
    Lane 2: Cdk4 knockout HAP1 whole cell lysate (20 µg)
    Lane 3: HeLa whole cell lysate (20 µg)

    Lanes 1 - 3: Merged signal (red and green). Green - ab199728 observed at 34 kDa. Red - loading control, ab18058, observed at 130 kDa.

    ab199728 was shown to specifically recognize Cdk4 in wild-type HAP1 cells along with additional cross-reactive bands. No band was observed when Cdk4 knockout samples were examined. Wild-type and Cdk4 knockout samples were subjected to SDS-PAGE. Ab199728 and ab18058 (Mouse anti Vinculin loading control) were incubated overnight at 4°C at 1/1000 dilution and 1/20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab199728).

  • Cdk4 was immunoprecipitated from 1mg NIH/3T3 (Mouse embryonic fibroblast cell line) whole cell lysate with ab199728 at 1/50 dilution. Western blot was performed from the immunoprecipitate using ab199728 at 1/1000 dilution.  Anti-Rabbit IgG (HRP) specific to the non-reduced form of IgG was used as secondary antibody at 1/1500 dilution.

    Lane 1: NIH/3T3 whole cell lysate, 10 (Input). 

    Lane 2: ab199728 IP in NIH/3T3 whole cell lysate. 

    Lane 3: Rabbit IgG,monoclonal [EPR25A]- Isotype Control (ab172730) instead of ab199728 in NIH/3T3 whole cell lysate.

    Blocking and dilution buffer and concentration: 5% NFDM/TBST.
    Exposure time: 10 seconds

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab199728).

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized NIH/3T3 (Mouse embryonic fibroblast cell line) cells labeling Cdk4 with ab199728 at 1/250 dilution, followed by Goat Anti-Rabbit IgG (Alexa Fluor® 488) (ab150077) secondary antibody at 1/500 dilution (green). Confocal image showing cytoplasmic and nuclear staining on NIH/3T3 cell line. The nuclear counter stain is DAPI (blue).

    Tubulin is detected with Anti-alpha Tubulin antibody- Loading Control  (ab7291) at 1/1000 dilution and  Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed (ab150120)  at 1/500 dilution (red).
    The negative controls are as follows:
    -ve control 1: ab199728 at 1/250 dilution followed by ab150120 at 1/500 dilution.
    -ve control 2: ab7291 at 1/1000 dilution followed by ab150077  at 1/500 dilution.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab199728).

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized HeLa (Human epithelial cell line from cervix adenocarcinoma) cells labeling Cdk4 with ab199728 at 1/250 dilution, followed by Goat Anti-Rabbit IgG H & L (Alexa Fluor® 488) (ab150077) secondary antibody at 1/500 dilution (green). Confocal image showing cytoplasmic, nuclear and membrane staining on HeLa cell line. The nuclear counter stain is DAPI (blue).

    Tubulin is detected with Anti-alpha Tubulin antibody - Loading Control (ab7291) at 1/1000 dilution and Goat Anti-Mouse IgG H&L (Alexa Fluor® 594) preadsorbed (ab150120)  at 1/500 dilution (red).
    The negative controls are as follows:
    -ve control 1: ab199728 at 1/250 dilution followed by ab150120 at 1/500 dilution.
    -ve control 2: ab7291 at 1/1000 dilution followed by ab150077  at 1/500 dilution.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab199728).

References

ab236019 has not yet been referenced specifically in any publications.

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