Protein Information

Name AP 1 (protein family or complex)
Synonyms AP 1; AP 1 complex; AP1; Adapter related protein complex 1

Compound Information

Name IBA
CAS

Reference List

PubMed Abstract RScore(About this table)
7862446 Sonobe MH, Yoshida T, Murakami M, Kameda T, Iba H: fra-2 promoter can respond to serum-stimulation through AP-1 complexes. . Oncogene. 1995 Feb 16;10(4):689-96.

3(0,0,0,3) Details
11071861 Ui M, Mizutani T, Takada M, Arai T, Ito T, Murakami M, Koike C, Watanabe T, Yoshimatsu K, Iba H: Endogenous AP-1 levels necessary for oncogenic activity are higher than those sufficient to support normal growth. Biochem Biophys Res Commun. 2000 Nov 11;278(1):97-105.

3(0,0,0,3) Details
9500440 Kameda T, Iba H: Suppression of cellular transformation by glucocorticoid receptor mutants. Cancer Res. 1998 Mar 1;58(5):867-70.


Glucocorticoid receptor (GR) has been shown to suppress activator protein 1 (AP-1)-mediated transcription by several molecular mechanisms.
3(0,0,0,3) Details
8437852 Okuno H, Akahori A, Sato H, Xanthoudakis S, Curran T, Iba H: Escape from redox regulation enhances the transforming activity of Fos. Oncogene. 1993 Mar;8(3):695-701.


Fos and Jun form dimeric complexes that bind to DNA sequences containing activator protein 1 (AP-1) sites and regulate gene expression.
3(0,0,0,3) Details
9149901 Kameda T, Watanabe H, Iba H: C-Jun and JunD suppress maturation of chondrocytes. . Cell Growth Differ. 1997 May;8(5):495-503.


To analyze the function of AP-1 in cartilage formation, two types of primary chondrocytes, LS and US cells, were prepared from caudal (lower) and cephalic (upper) regions of chicken sterna, respectively.
2(0,0,0,2) Details
1945831 Suzuki T, Okuno H, Yoshida T, Endo T, Nishina H, Iba H: Difference in transcriptional regulatory function between c-Fos and Fra-2. . Nucleic Acids Res. 1991 Oct 25;19(20):5537-42.


Like c-Fos and Fra-1, Fra-2 formed stable heterodimers with c-Jun, JunB or JunD in vitro and all these complexes had specific DNA-binding activity to AP-1-binding sites (AP-1 sites) or related sequences.
2(0,0,0,2) Details
9188858 Murakami M, Sonobe MH, Ui M, Kabuyama Y, Watanabe H, Wada T, Handa H, Iba H: Phosphorylation and high level expression of Fra-2 in v-src transformed cells: a pathway of activation of endogenous AP-1. Oncogene. 1997 May 22;14(20):2435-44.

2(0,0,0,2) Details
11108151 Matsubara H, Moriguchi Y, Mori Y, Masaki H, Tsutsumi Y, Shibasaki Y, Uchiyama-Tanaka Y, Fujiyama S, Koyama Y, Nose-Fujiyama A, Iba S, Tateishi E, Iwasaka T: Transactivation of EGF receptor induced by angiotensin II regulates fibronectin and TGF-beta gene expression via transcriptional and post-transcriptional mechanisms. Mol Cell Biochem. 2000 Sep;212(1-2):187-201.


We isolated the rat fibronectin gene including the 5'-flanking region and found that the AP-1 binding site present in the promoter region was responsible for the Ang II responsiveness of this gene.
2(0,0,0,2) Details
1900269 Suzuki T, Hashimoto Y, Okuno H, Sato H, Nishina H, Iba H: High-level expression of human c-jun gene causes cellular transformation of chicken embryo fibroblasts. Jpn J Cancer Res. 1991 Jan;82(1):58-64.


Gel shift analysis using nuclear extracts from DS3-infected CEF revealed that the Fra-2/Jun complex contributes to the basal level of AP-1 DNA binding activity.
2(0,0,0,2) Details
10359014 Murakami M, Ui M, Iba H: Fra-2-positive autoregulatory loop triggered by mitogen-activated protein kinase (MAPK) and Fra-2 phosphorylation sites by MAPK. Cell Growth Differ. 1999 May;10(5):333-42.


We reported previously that activation of endogenous activator protein 1 (AP-1) in chicken embryo fibroblasts is essential for the cellular transformation induced by v-src, and we further showed that the activation of AP-1 is accompanied by elevation of Fra-2 and c-Jun expression and also high-level phosphorylation of Fra-2 by activated endogenous extracellular signal-regulated kinase [mitogen-activated protein kinase (MAPK)].
2(0,0,0,2) Details
18384814 Fujita S, Ito T, Mizutani T, Minoguchi S, Yamamichi N, Sakurai K, Iba H: miR-21 Gene expression triggered by AP-1 is sustained through a double-negative feedback mechanism. J Mol Biol. 2008 May 2;378(3):492-504. Epub 2008 Mar 15.


We show that activation protein 1 (AP-1) activates the miR-21 transcription in conjugation with the SWI/SNF complex, after PMA stimulation, through the conserved AP-1 and PU.1 binding sites in the promoter identified here.
2(0,0,0,2) Details
11566906 Shibasaki Y, Matsubara H, Nozawa Y, Mori Y, Masaki H, Kosaki A, Tsutsumi Y, Uchiyama Y, Fujiyama S, Nose A, Iba O, Tateishi E, Hasegawa T, Horiuchi M, Nahmias C, Iwasaka T: Angiotensin II type 2 receptor inhibits epidermal growth factor receptor transactivation by increasing association of SHP-1 tyrosine phosphatase. Hypertension. 2001 Sep;38(3):367-72.


Induction of fibronectin gene containing an AP-1 responsive element in its 5'-flanking region was decreased by 37% after AT (2) stimulation, corresponding to the results of gel mobility assay with the AP-1 sequence of fibronectin as a probe.
2(0,0,0,2) Details
8415709 Kameda T, Akahori A, Sonobe MH, Suzuki T, Endo T, Iba H: JunD mutants with spontaneously acquired transforming potential have enhanced transactivating activity in combination with Fra-2. Proc Natl Acad Sci U S A. 1993 Oct 15;90(20):9369-73.


The transcriptional activity of these mutants was analyzed by means of transient expression experiments in F9 cells using a reporter gene containing a single AP-1 binding site.
1(0,0,0,1) Details
1923517 Okuno H, Suzuki T, Yoshida T, Hashimoto Y, Curran T, Iba H: Inhibition of jun transformation by a mutated fos gene: design of an anti-oncogene. Oncogene. 1991 Sep;6(9):1491-7.


Inhibition of jun transformation was associated with the appearance of supFos1-Jun heterodimers and a reduction in the AP-1 DNA-binding activity contributed by Jun homodimers.
1(0,0,0,1) Details
12493776 Yamamichi-Nishina M, Ito T, Mizutani T, Yamamichi N, Watanabe H, Iba H: SW13 cells can transition between two distinct subtypes by switching expression of BRG1 and Brm genes at the post-transcriptional level. J Biol Chem. 2003 Feb 28;278(9):7422-30. Epub 2002 Dec 17.


Run-on analysis indicated that, unlike these four genes driven by AP-1, transcription of the BRG1 and Brm genes in SW13 (vim-) are initiated at a frequency comparable with SW13 (vim+).
1(0,0,0,1) Details
11053448 Ito T, Yamauchi M, Nishina M, Yamamichi N, Mizutani T, Ui M, Murakami M, Iba H: Identification of SWI.SNF complex subunit BAF60a as a determinant of the transactivation potential of Fos/Jun dimers. J Biol Chem. 2001 Jan 26;276(4):2852-7. Epub 2000 Oct 26.


Fos family proteins form stable heterodimers with Jun family proteins, and each heterodimer shows distinctive transactivating potential for regulating cellular growth, differentiation, and development via AP-1 binding sites.
1(0,0,0,1) Details
7687344 Yoshida T, Suzuki T, Sato H, Nishina H, Iba H: Analysis of fra-2 gene expression. Nucleic Acids Res. 1993 Jun 11;21(11):2715-21.


Two typical AP-1 sequences are located between the major transcriptional initiation site and the coding sequence, and the binding activity of protein complexes to these sequences was induced by serum.
1(0,0,0,1) Details
8189491 Suzuki T, Murakami M, Onai N, Fukuda E, Hashimoto Y, Sonobe MH, Kameda T, Ichinose M, Miki K, Iba H: Analysis of AP-1 function in cellular transformation pathways. J Virol. 1994 Jun;68(6):3527-35.

4(0,0,0,4) Details