Cyanine 5-dUTP

Cyanine 5-dUTP (Cy5-dUTP) is a fluorescent nucleotide analog extensively used in molecular biology and biochemistry for various labeling and tracking applications. Structurally analogous to deoxyuridine triphosphate (dUTP), it is uniquely modified by the attachment of a Cyanine 5 (Cy5) fluorescent dye, which emits in the far-red spectrum, making it particularly useful in multicolor fluorescence applications where it is essential to distinguish different molecular interactions or processes simultaneously. Cyanine 5-dUTP can be efficiently incorporated into DNA during enzymatic amplification processes, such as PCR and nick translation, or during random priming. This enables the detailed visualization of DNA and its associated processes in real-time, facilitating a deeper understanding of gene expression, DNA replication, and molecular diagnostics. The bright and stable fluorescence of Cy5 also enhances the detection sensitivity in complex assays, such as fluorescence in situ hybridization (FISH), where specific nucleic acid sequences within a heterogeneous sample can be labeled and observed. Overall, Cyanine 5-dUTP serves as a powerful tool in the toolkit of researchers aiming to elucidate complex biological systems and cellular mechanisms at the molecular level.