PHOENIX SECRETOMICS

Fos Related Antigen, Fra-1 & -2


Immunofluorescence staining of Fra-2
in normal mouse intestine frozen section
showing nuclear staining.

Fos Related Antigen-1 & -2


Amino Acid Sequence of Human Fos Related Antigen-1: 271 aa, MW 29413 Da, Cellular component: nucleus
Total aa: 271 ; MW : 29413 Da; Cellular component: nucleus; Molecular function: transcription factor activity and positive regulation of cell proliferation; Swiss ID: P15407
        10         20         30         40         50         60   
MFRDFGEPGP SSGNGGGYGG PAQPPAAAQA AQQKFHLVPS INTMSGSQEL QWMVQPHFLG
        70         80         90        100        110        120   
PSSYPRPLTY PQYSPPQPRP GVIRALGPPP GVRRRPCEQI SPEEEERRRV RRERNKLAAA            
       130        140        150        160        170        180   
KCRNRRKELT DFLQAETDKL EDEKSGLQRE IEELQKQKER LELVLEAHRP ICKIPEGAKE
       190        200        210        220        230        240   
GDTGSTSGTS SPPAPCRPVP CISLSPGPVL EPEALHTPTL MTTPSLTPFT PSLVFTYPST  
       250        260        270   
PEPCASAHRK SSSSSGDPSS DPLGSPTLLA L 271
 
Amino Acid Sequence of Human Fos Related Antigen-2

Total aa: 326; MW: 35193 Da; Cellular component: nucleus; Molecular function: Cellular oncogenes, or proto-oncogenes, play pivotal roles in cellular communication pathways that regulate normal growth, development and differentiation; Swiss ID: P15408

        10         20         30         40         50         60   
MYQDYPGNFD TSSRGSSGSP AHAESYSSGG GGQQKFRVDM PGSGSAFIPT INAITTSQDL 
        70         80         90        100        110        120   
QWMVQPTVIT SMSNPYPRSH PYSPLPGLAS VPGHMALPRP GVIKTIGTTV GRRRRDEQLS 
       130        140        150        160        170        180   
PEEEEKRRIR RERNKLAAAK CRNRRRELTE KLQAETEELE EEKSGLQKEI AELQKEKEKL 
       190        200        210        220        230        240   
EFMLVAHGPV CKISPEERRS PPAPGLQPMR SGGGSVGAVV VKQEPLEEDS PSSSSAGLDK 
       250        260        270        280        290        300   
AQRSVIKPIS IAGGFYGEEP LHTPIVVTST PAVTPGTSNL VFTYPSVLEQ ESPASPSESC 
       310        320   
SKAHRRSSSS GDQSSDSLNS PTLLAL 326
Immunostaining of Fos Related Antigen-1 by Rabbit Anti-Mouse Fra-1, N-Terminal Antibody
human cervical cancer was stained nuclear of tumor cells by Fra-1 monoclonal antibody
Representative PR and Fra2 immunostainings and analysis of PR and Fra2 expression
in the DLP. Representative immune stainings of PR (A-C) and Fra2 (E-G) from Cast, Cast+E2 and
Cast+E2+Fis 30 groups. Magnifications: 40x. JPET Fast Forward. Published on June 26, 2008 as DOI:10.1124/jpet.108.139501
Prostate carcinoma stained with Rabbit Anti-Human Fos Related Antigen-2, N-Terminal Antibody. 40KDa of Fra-2 in WB.

CREB-1 and AP-1 transcription factors JunD and Fra-2 regulate bone sialoprotein gene expression in human breast cancer cell

Bone sialoprotein (BSP) expression is detected in a variety of human osteotropic cancers. High expression of BSP in breast and prostate primary carcinomas is associated with progression and bone metastases development. In this study, we examined the transcriptional regulation of BSP gene expression in MDA-MB-231 and MCF-7 human breast cancer cells compared with Saos-2 human osteoblast-like cells. BSP human promoter deletion analyses delineated a -56/-84 region, which comprises a cAMP response element (CRE) that was sufficient for maximal promoter activity in breast cancer cell lines. We found that the basic fibroblast growth factor response element (FRE) also located in the proximal promoter was a crucial regulator of human BSP promoter activity in Saos-2 but not in breast cancer cells. Promoter activity experiments in combination with DNA mobility shift assays demonstrated that BSP promoter activity is under the control of the CRE element, through CREB-1, JunD and Fra-2 binding, in MDA-MB-231, MCF-7 and in Saos-2 cells. Forskolin, a protein kinase A pathway activator, failed to enhance BSP transcriptional activity suggesting that CRE site behaves as a constitutive rather than an inducible element in these cell lines. Over-expression of JunD and Fra-2 increased BSP promoter activity and upregulated endogenous BSP protein expression in MCF-7 and Saos-2 cells while siRNA-mediated inhibition of both factors expression significantly reduced BSP protein level in MDA-MB-231. Collectively, these data provide with new transcriptional mechanisms, implicating CREB and AP-1 factors, that control BSP gene expression in breast cancer cells.
Detry C, et al. Bone. 2008 Feb;42(2):422-31. Epub 2007 Nov 1.

 

 

Name
Application
Catalog No.
Quantity
Price ($)
Human Fos Related Antigen-1 (Fra-1), C-Terminal, Monoclonal Antibody
WB, IHC,
PS001-27--MAB-01
200 ul
190
Mouse Fos Related Antigen-1(Fra-1) , N-Terminal Antibody
IHC, IFC, WB
PS001-27-AG-01
200 ul
190
Human Fos Related Antigen-2 (Fra-2), N-terminal, Antibody
IHC, IFC,WB, ChIP
PS001-28-AG-01
200 ul
190

 

 

 

 

 

 

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