Abstract：
:Human prostatic acid phosphatase (PAcP) is a prostate epithelium-specific differentiation antigen. Cellular PAcP functions as a neutral protein tyrosine phosphatase and is involved in regulating androgen-promoted prostate cancer cell proliferation. Despite the fact that the promoter of the PAcP gene has been cloned, the transcriptional factors that regulate PAcP expression remain unidentified. This article describes our analyses of the promoter of the PAcP gene. Deletion analyses of the promoter sequence up to -4893 (-4893/+87) revealed that a 577 bp fragment (-1356/-779) represents the unique positive cis-active element in human prostate cancer cells but not in HeLa cervix carcinoma cells. Interestingly, the 577 bp fragment contains a non-consensus nuclear factor kappaB (NF-kappaB)-binding site that is required for NF-kappaB up-regulation in prostate cancer cells, while NF-kappaB failed to have the same effect in HeLa cells. Conversely, inhibition of the NF-kappaB pathway stopped p65 NF-kappaB activation of the p1356 promoter activity. Gel shift and mutation analyses determined that AGGTGT (-1254/-1249) is the core sequence for NF-kappaB-binding and activation. Biologically, tumor necrosis factor-alpha (TNF-alpha) activated endogenous PAcP expression in LNCaP human prostate cancer cells. The data collectively indicate that NF-kappaB up-regulates PAcP promoter activity via its binding to the AGGTGT motif, a novel binding sequence located inside the cis-active enhancer element in human prostate cancer cells.
journal_name
Nucleic Acids Resjournal_title
Nucleic acids researchauthors
Zelivianski S,Glowacki R,Lin MFdoi
10.1093/nar/gkh677keywords:
subject
Has Abstractpub_date
2004-07-07 00:00:00pages
3566-80issue
12eissn
0305-1048issn
1362-4962pii
32/12/3566journal_volume
32pub_type
杂志文章abstract：:The European Nucleotide Archive (ENA; https://www.ebi.ac.uk/ena), provided by the European Molecular Biology Laboratory's European Bioinformatics Institute (EMBL-EBI), has for almost forty years continued in its mission to freely archive and present the world's public sequencing data for the benefit of the entire scie...
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abstract：:Our database on large ribosomal subunit RNA contained 334 sequences in July, 1995. All sequences in the database are aligned, taking into account secondary structure. The aligned sequences are provided, together with incorporated secondary structure information, in several computer-readable formats. These data can eas...
journal_title：Nucleic acids research
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abstract：:The multifunctional RNA-dependent RNA polymerase L protein of vesicular stomatitis virus catalyzes unconventional pre-mRNA capping via the covalent enzyme-pRNA intermediate formation, which requires the histidine-arginine (HR) motif in the polyribonucleotidyltransferase domain. Here, the effects of cap-defective mutat...
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更新日期：2001-06-15 00:00:00
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