Caspase-3 is a caspase protein that interacts with caspase-8 and caspase-9. It is encoded by the CASP3 gene. This gene is a member of the metallo-β-lactamase family and is referred as CPSF73 and CPSF-73. CPSF73 is a 73kDa subunit and is the pre-mRNA 3′-end-processing endonuclease.
Application
Anti-CPSF3 (C-terminal) antibody produced in rabbit is suitable for western blotting at a dilution of 1:250-1:500 using K-562 lysate.
Biochem/physiol Actions
CPSF3 is induced by interaction between CSR1 and CPSF3 and is translocated from the nucleus to the cytoplasm, resulting in inhibition of polyadenylation. Down-regulation of CPSF3 using small interfering RNA induces cell death. CPSF73 mediates cleavage coupled to polyadenylation and histone pre-mRNA processing. HIV-1 Tat protein interacts with CPSF-73 and counteracts its repressive activity on the HIV-1 LTR promoter. During the cleavage and polyadenylation, CPSF plays a central role in processing the reaction.
Physical form
Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.
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Journal of molecular biology, 372(2), 317-330 (2007-08-03)
Gene expression in eukaryotes requires the post-transcriptional cleavage of mRNA precursors into mature mRNAs. The cleavage and polyadenylation specificity factor (CPSF) is critical for this process and its 73 kDa subunit (CPSF-73) mediates cleavage coupled to polyadenylation and histone pre-mRNA
CSR1 (cellular stress response 1), a newly characterized tumor-suppressor gene, undergoes hypermethylation in over 30% of prostate cancers. Re-expression of CSR1 inhibits cell growth and induces cell death, but the mechanism by which CSR1 suppresses tumor growth is not clear.
3' end formation of pre-mRNAs is coupled to their transcription via the C-terminal domain (CTD) of RNA polymerase II (Pol II). Nearly all protein-coding transcripts are matured by cleavage and polyadenylation (CPA), which is frequently misregulated in disease. Understanding how
Most eukaryotic messenger RNA precursors (pre-mRNAs) undergo extensive maturational processing, including cleavage and polyadenylation at the 3'-end. Despite the characterization of many proteins that are required for the cleavage reaction, the identity of the endonuclease is not known. Recent analyses
Science (New York, N.Y.), 274(5292), 1514-1517 (1996-11-29)
The 3' ends of most eukaryotic messenger RNAs are generated by endonucleolytic cleavage and polyadenylation. In mammals, the cleavage and polyadenylation specificity factor (CPSF) plays a central role in both steps of the processing reaction. Here, the cloning of the
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