Abstract：
:The upstream stimulatory factors 1 (USF1) and 2 (USF2) are transcription factors which bind to E-box motifs of various promoters regulating a variety of different cellular processes. Only little is known about the regulation of USFs. Here, we identified protein kinase CK2 as an enzyme that phosphorylates USF1 but not USF2. Using deletion mutants and point mutants we were able to identify threonine 100 as the major phosphorylation site for CK2. It is well known that USF1 and USF2 form hetero-dimers. Binding studies revealed that the inhibition of CK2 kinase activity by a specific inhibitor enhanced binding of USF1 to USF2. Furthermore, transactivation studies showed that the inhibition of CK2 phosphorylation of USF1 stimulated transcription from the glucokinase promoter as well as the fatty acid synthetase promoter but not from the heme oxygenase-1 promoter. Thus, we have shown for the first time that CK2 phosphorylation of USF1 modulates two functionally important properties of USF1, namely hetero-dimerization and transactivation.
journal_name
Cell Signaljournal_title
Cellular signallingauthors
Lupp S,Götz C,Khadouma S,Horbach T,Dimova EY,Bohrer AM,Kietzmann T,Montenarh Mdoi
10.1016/j.cellsig.2014.08.028subject
Has Abstractpub_date
2014-12-01 00:00:00pages
2809-17issue
12eissn
0898-6568issn
1873-3913pii
S0898-6568(14)00301-5journal_volume
26pub_type
杂志文章abstract：:It has been shown lately that activity of G protein-coupled receptors (GPCRs) is regulated by an array of proteins binding to carboxy (C)-terminus of GPCRs. Proteins of 4.1 family are subsets of subcortical cytoskeletal proteins and are known to stabilize cellular structures and proteins at the plasma membrane. One of...
journal_title：Cellular signalling
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更新日期：1995-05-01 00:00:00
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journal_title：Cellular signalling
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更新日期：2012-08-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章,评审
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2007.11.008
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2018.09.018
更新日期：2019-01-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2006.05.029
更新日期：2007-01-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2006.10.007
更新日期：2007-04-01 00:00:00
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pub_type： 杂志文章,评审
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2009.05.011
更新日期：2009-10-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(02)00055-4
更新日期：2003-01-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2009.02.012
更新日期：2009-08-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
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更新日期：2020-01-01 00:00:00
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journal_title：Cellular signalling
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更新日期：2019-01-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00205-4
更新日期：2001-10-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2016.03.006
更新日期：2016-06-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2004.05.014
更新日期：2005-01-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(90)90045-c
更新日期：1990-01-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
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更新日期：2020-04-01 00:00:00
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journal_title：Cellular signalling
pub_type： 杂志文章
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更新日期：2011-12-01 00:00:00
abstract：:Here we demonstrate that elevation of cyclic AMP (cAMP) levels in human umbilical vein endothelial cells (HUVECs) specifically attenuates ERK1,2 activation in response to either leptin or a soluble interleukin IL-6 receptor-alpha/IL-6 (sIL-6R alpha/IL-6) trans-signalling complex but not protein kinase C activator phor...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2009.07.009
更新日期：2009-11-01 00:00:00
abstract：:Epidermal growth factor (EGF) signaling is critical in normal and aberrant cellular behavior. Extracellular signal-regulated kinase (ERK) mediates important downstream aspects of EGF signaling. Additionally, EGFR undergoes MEK1-dependent ERK consensus site phosphorylation in response to EGF or cytokines such as growth...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2008.08.006
更新日期：2008-11-01 00:00:00
