Protein Information

Name CDK4
Synonyms CDK 4; CDK4; CDK4 protein; CMM 3; CMM3; Cell division kinase 4; Cell division protein kinase 4; Cyclin dependent kinase 4…

Compound Information

Name biphenyl
CAS 1,1′-biphenyl

Reference List

PubMed Abstract RScore(About this table)
17762392 Kim BS, Bae E, Kim YJ, Ahn KS, Park J, Rhee JY, Lee YY, Kim Y, Lee D, Kim BK, Yoon SS: Combination of SK-7041, one of novel histone deacetylase inhibitors, and STI571-induced synergistic apoptosis in chronic myeloid leukemia. Anticancer Drugs. 2007 Jul;18(6):641-7.


SK-7041 exhibited growth inhibition of leukemia cells by downregulation of CDK4, cyclin E and cyclin B1 expression, and by upregulation of p21 expression with subsequent activation of the mitochondria-mediated caspase pathway.
1(0,0,0,1) Details
18650093 Jenkins PR, Wilson J, Emmerson D, Garcia MD, Smith MR, Gray SJ, Britton RG, Mahale S, Chaudhuri B: Design, synthesis and biological evaluation of new tryptamine and tetrahydro-beta-carboline-based selective inhibitors of CDK4. Bioorg Med Chem. 2008 Aug 15;16(16):7728-39. Epub 2008 Jul 8.

The most active compounds have a CDK4 IC (50) in the range 9-11 microM, three of them containing the para-biphenyl plus para-substituents supporting the existence of a pi-stacking pocket within the active site of CDK4.
9(0,0,1,4) Details
17938262 Hahm ER, Singh SV: Honokiol causes G0-G1 phase cell cycle arrest in human prostate cancer cells in association with suppression of retinoblastoma protein level/phosphorylation and inhibition of E2F1 transcriptional activity. Mol Cancer Ther. 2007 Oct;6(10):2686-95.


The honokiol-mediated cell cycle arrest was associated with a decrease in protein levels of cyclin D1, cyclin-dependent kinase 4 (Cdk4), Cdk6, and/or cyclin E and suppression of complex formation between cyclin D1 and Cdk4 as revealed by immunoprecipitation using anti-cyclin D1 antibody followed by immunoblotting for Cdk4 protein.
1(0,0,0,1) Details
19135778 Park EJ, Min HY, Chung HJ, Hong JY, Kang YJ, Hung TM, Youn UJ, Kim YS, Bae K, Kang SS, Lee SK: Down-regulation of c-Src/EGFR-mediated signaling activation is involved in the honokiol-induced cell cycle arrest and apoptosis in MDA-MB-231 human breast cancer cells. Cancer Lett. 2009 May 18;277(2):133-40. Epub 2009 Jan 9.


The honokiol-induced cell cycle arrest was well correlated with the suppressive expression of CDK4, cyclin D1, CDK2, cyclin E, c-Myc, and phosphorylated retinoblastoma protein (pRb) at Ser780.
1(0,0,0,1) Details