We use cookies to enhance the usability of our website. If you continue, we'll assume that you are happy to receive all cookies. More information. Don't show this again.
Staining of U-2 OS FUCCI cells, to characterize the cell cycle dependency of the protein expression pattern. The FUCCI cells, Fluorescence Ubiquitination Cell Cycle Indicator, are cells tagged with different fluorescent proteins fused to two different cell cycle regulators Cdt1 (expressed in G1 phase) and Geminin (expressed in S and G2 phases) that allows cell cycle monitoring. When both proteins are present, the overlay of the images appear in yellow marking the G1/S transition. DUT is mostly expressed at the G1/S checkpoint, and during S and/or G2.
CELL CYCLE
Summary
Expression has cell cycle dependency according to custom assay
Intensity variation
Nucleoplasm
GENE INFORMATION
Gene name
DUT (HGNC Symbol)
Synonyms
dUTPase
Description
Deoxyuridine triphosphatase (HGNC Symbol)
Entrez gene summary
This gene encodes an essential enzyme of nucleotide metabolism. The encoded protein forms a ubiquitous, homotetrameric enzyme that hydrolyzes dUTP to dUMP and pyrophosphate. This reaction serves two cellular purposes: providing a precursor (dUMP) for the synthesis of thymine nucleotides needed for DNA replication, and limiting intracellular pools of dUTP. Elevated levels of dUTP lead to increased incorporation of uracil into DNA, which induces extensive excision repair mediated by uracil glycosylase. This repair process, resulting in the removal and reincorporation of dUTP, is self-defeating and leads to DNA fragmentation and cell death. Alternative splicing of this gene leads to different isoforms that localize to either the mitochondrion or nucleus. A related pseudogene is located on chromosome 19. [provided by RefSeq, Jul 2008]