Principle of the Assay: CCND ELISA kit applies the competitive enzyme immunoassay technique utilizing a polyclonal anti-CCND antibody and an CCND-HRP conjugate. The assay sample and buffer are incubated together with CCND-HRP conjugate in pre-coated plate for one hour. After the incubation period, the wells are decanted and washed five times. The wells are then incubated with a substrate for HRP enzyme. The product of the enzyme-substrate reaction forms a blue colored complex. Finally, a stop solution is added to stop the reaction, which will then turn the solution yellow. The intensity of color is measured spectrophotometrically at 450nm in a microplate reader. The intensity of the color is inversely proportional to the CCND concentration since CCND from samples and CCND-HRP conjugate compete for the anti-CCND antibody binding site. Since the number of sites is limited, as more sites are occupied by CCND from the sample, fewer sites are left to bind CCND-HRP conjugate. A standard curve is plotted relating the intensity of the color (O.D.) to the concentration of standards. The CCND concentration in each sample is interpolated from this standard curve.
NCBI and Uniprot Product Information
NCBI Description
The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance throughout the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin forms a complex with and functions as a regulatory subunit of CDK4 or CDK6, whose activity is required for cell cycle G1/S transition. This protein has been shown to interact with tumor suppressor protein Rb and the expression of this gene is regulated positively by Rb. Mutations, amplification and overexpression of this gene, which alters cell cycle progression, are observed frequently in a variety of tumors and may contribute to tumorigenesis. [provided by RefSeq, Jul 2008]
Uniprot Description
CCND1: a member of the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Forms a complex with and functions as a regulatory subunit of CDK4 or CDK6, whose activity is required for cell cycle G1/S transition. This protein has been shown to interact with tumor suppressor protein Rb and the expression of this gene is regulated positively by Rb.
Protein type: Activator; Oncoprotein; Cell cycle regulation; Nuclear receptor co-regulator
Chromosomal Location of Human Ortholog: 11q13
Cellular Component: nucleoplasm; tight junction; membrane; transcriptional repressor complex; cyclin-dependent protein kinase holoenzyme complex; intracellular; cytosol; nucleus
Molecular Function: protein binding; enzyme binding; histone deacetylase binding; protein complex binding; cyclin-dependent protein kinase regulator activity; transcription factor binding; transcription corepressor activity; protein kinase binding; protein kinase activity
Biological Process: fat cell differentiation; G1 DNA damage checkpoint; lactation; establishment and/or maintenance of chromatin architecture; negative regulation of Wnt receptor signaling pathway; positive regulation of cyclin-dependent protein kinase activity; re-entry into mitotic cell cycle; positive regulation of mammary gland epithelial cell proliferation; negative regulation of epithelial cell differentiation; Wnt receptor signaling pathway through beta-catenin; negative regulation of transcription from RNA polymerase II promoter; protein amino acid phosphorylation; response to vitamin E; response to magnesium ion; Leydig cell differentiation; response to iron ion; response to X-ray; response to corticosterone stimulus; response to drug; organ regeneration; Notch signaling pathway; transcription, DNA-dependent; unfolded protein response; mammary gland epithelial cell proliferation; response to organic nitrogen; liver development; response to ethanol; cell division; response to estrogen stimulus; mitotic cell cycle; positive regulation of protein amino acid phosphorylation; response to calcium ion; response to DNA damage stimulus; G1/S transition of mitotic cell cycle
Disease: Von Hippel-lindau Syndrome; Myeloma, Multiple