Abstract:
:The Tap1 and Tap2 genes encoding for a heterodimeric peptide transporter play a key role in antigen processing and presentation. The TAP complex mediates the transport of peptides generated by the IFN-gamma-inducible proteasome subunits LMP2, 7 and 10 from the cytosol into the endoplasmic reticulum (ER), where they bind to MHC class I molecules. In contrast to the frequent polymorphisms within the rat Tap genes which exert functional differences, polymorphic regions within the human Tap genes have been demonstrated, but not systematically analyzed in terms of their functional significance. Both the Tap1 and Lmp2 genes are transcribed from a bidirectional intergenic promoter which is regulated by at least three sequences located in the Tap1 proximal region. We describe here a polymorphic site in the shared TAP1/LMP2 promoter which frequently occurred in human tumor cells of distinct origin. This polymorphism resulted in a Gright curved arrow T substitution 151 bp upstream of the translation start of Tap1. Using transient transfection assays with luciferase reporter constructs, the transcriptional activities of the different allelic variants of the TAP1/LMP2 promoter were comparable suggesting no functional consequences of this TAP1/LMP2 promoter polymorphism.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Seliger B,Bock M,Ritz U,Huber Ckeywords:
subject
Has Abstractpub_date
2002-02-01 00:00:00pages
349-53issue
2eissn
1019-6439issn
1791-2423journal_volume
20pub_type
杂志文章abstract::Establishment of tumor cell lines as model systems for studying tumor biology or as a part of immunotherapeutic anti-cancer strategies is of high importance, whereby the highest possible preservation of the original tumor cell phenotype is a prerequisite for these aims. Since overexpression of the catalytic subunit of...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.26.4.961
更新日期:2005-04-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.2833
更新日期:2015-03-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2445
更新日期:2014-08-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.2040
更新日期:2013-10-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2006-04-01 00:00:00
abstract::The incidence of thyroid cancer has increased in the past decades; however, the underlying molecular mechanisms of thyroid cancer tumorigenesis remain unknown. Using sequencing technology, long intergenic non‑protein coding RNA 673 (LINC00673) was identified to be upregulated in several tumor tissues. However, the bio...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4524
更新日期:2018-11-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related mortality worldwide. We have previously reported that LASP-1 is a downstream protein of the urokinase type plasminogen activator (uPA). Here we investigated the role of LASP-1 in HCC by a molecular and biological characterization of LASP-1...
journal_title:International journal of oncology
pub_type: 杂志文章
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更新日期:2015-05-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
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更新日期:2006-07-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.15.5.961
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doi:10.3892/ijo.4.2.481
更新日期:1994-02-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4407
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2019.4787
更新日期:2019-06-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:
更新日期:2003-02-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.3.4.627
更新日期:1993-10-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2801
更新日期:2015-03-01 00:00:00
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pub_type: 杂志文章
doi:10.3892/ijo.2014.2256
更新日期:2014-03-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2007-08-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.19.4.749
更新日期:2001-10-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.16.6.1099
更新日期:2000-06-01 00:00:00
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pub_type: 杂志文章
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journal_title:International journal of oncology
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更新日期:2006-07-01 00:00:00
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pub_type: 杂志文章
doi:10.3892/ijo.13.6.1253
更新日期:1998-12-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:10.3892/ijo.2018.4283
更新日期:2018-04-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.1911
更新日期:2013-06-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.8.3.439
更新日期:1996-03-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2020.4973
更新日期:2020-04-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
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更新日期:2016-10-01 00:00:00
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journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo_00000574
更新日期:2010-04-01 00:00:00