CDK4 / Cyclin-Dependent Kinase 4 Recombinant Protein | CDK4 recombinant protein

Human CDK4 / Cyclin-Dependent Kinase 4 Recombinant Protein

• Gene Names: CDK4; CMM3; PSK-J3
• Applications: ELISA, Western Blot
• Purity: >95% by SDS-PAGE
• Synonyms: CDK4 / Cyclin-Dependent Kinase 4; Human CDK4 / Cyclin-Dependent Kinase 4 Recombinant Protein; Cyclin-dependent kinase 4; Cell division protein kinase 4; PSK-J3; CDK4 recombinant protein

• Host: E Coli
• Purity/Purification: >95% by SDS-PAGE
• Form/Format: Liquid; 50mM NaH2PO4, 500mM NaCl Buffer with 500mM Imidazole, 10% Glycerol (PH8.0)
• Concentration: Reconstitution Dependent (varies by lot)
• Sequence Length: 303

• Applicable Applications for CDK4 recombinant protein: ELISA (EIA), Western Blot (WB), Antigen Protein (AP), Protein Array
• Species: Human
• Tag: His
• Subunit: Component of the D-CDK4 complex, composed of CDK4 and some D-type G1 cyclin (CCND1, CCND2 or CCND3). Interacts directly in the complex with CCND1, CCND2 or CCND3. Interacts with SEI1 and ZNF655. Forms a ternary complex, cyclin D-CDK4-CDKN1B, involved in modulating CDK4 enzymatic activity. Interacts directly with CDKN1B (phosphorylated on 'Tyr-88' and 'Tyr-89'); the interaction allows assembly of the cyclin D-CDK4 complex, Thr-172 phosphorylation, nuclear translocation and enhances the cyclin D-CDK4 complex activity. CDK4 activity is either inhibited or enhanced depending on stoichiometry of complex. The non-tyrosine-phosphorylated form of CDKN1B prevents T-loop phosphorylation of CDK4 producing inactive CDK4. Interacts (unphosphorylated form) with CDK2. Also forms ternary complexes with CDKN1A or CDKN2A. Interacts directly with CDKN1A (via its N-terminal); the interaction promotes the assembly of the cyclin D-CDK4 complex, its nuclear translocation and promotes the cyclin D-dependent enzyme activity of CDK4. Interacts with CCND1; the interaction is prevented with the binding of CCND1 to INSM1 during cell cycle progression. Interacts with CEBPA (when phosphorylated) (PubMed:15107404). Interacts with FNIP1 and FNIP2 (PubMed:27353360).
• Entry 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.
• Preparation and Storage: Store at -20 degree C. Avoid repeated freezing and thawing.

NCBI and Uniprot Product Information

• NCBI GI #: 4502735
• NCBI GeneID: 1019
• NCBI Accession #: NP_000066.1
• NCBI GenBank Nucleotide #: NP_000066.1
• UniProt Accession #: P11802
• NCBI Official Full Name: cyclin-dependent kinase 4
• NCBI Official Synonym Full Names: cyclin dependent kinase 4
• NCBI Official Symbol: CDK4
• NCBI Official Synonym Symbols: CMM3; PSK-J3
• NCBI Protein Information: cyclin-dependent kinase 4
• UniProt Protein Name: Cyclin-dependent kinase 4
• Protein Family: Cyclin-dependent kinase
• UniProt Gene Name: CDK4
• UniProt Entry Name: CDK4_HUMAN

NCBI Description

The protein encoded by this gene is a member of the Ser/Thr protein kinase family. This protein is highly similar to the gene products of S. cerevisiae cdc28 and S. pombe cdc2. It is a catalytic subunit of the protein kinase complex that is important for cell cycle G1 phase progression. The activity of this kinase is restricted to the G1-S phase, which is controlled by the regulatory subunits D-type cyclins and CDK inhibitor p16(INK4a). This kinase was shown to be responsible for the phosphorylation of retinoblastoma gene product (Rb). Mutations in this gene as well as in its related proteins including D-type cyclins, p16(INK4a) and Rb were all found to be associated with tumorigenesis of a variety of cancers. Multiple polyadenylation sites of this gene have been reported. [provided by RefSeq, Jul 2008]