About Enhancer

Enhancer ID: E_02_007
Enhancer symbol: CNS-2 Enhancer
Species: Mouse
Position : chr3:37225520-37228865
Biosample name: CD4+ T Cell
Experiment class : Low throughput
Enhancer type: Enhancer
Disease: --
DO: --
Mesh: --
Distance from TSS: >2KB
Pubmed ID:  20042469
Enhancer experiment: Luciferase Reporter Assay,ChIP-qPCR,ChIP,PCR
Enhancer experiment description: To determine the function of IL-21P and CNS-2 in the transcriptional control of IL-21 expression by c-Maf, we performed a reporter assay. IL-21P-Luci containing a fragment of IL-21P (positions –261 to 17), IL-21P-Luci-CNS-2 containing IL-21P and CNS-2 (position +2931 to +3443), or control pGL3 was transfected into EL4 cells, together with pcDNA3 c-Maf or control pcDNA3, and the luciferase activity of the reporter construct was evaluated with or without PMA+I stimulation. As shown in Figure3B, IL-21P-Luci responded to PMA+I stimulation, and c-Maf enhanced the activity of IL-21P-Luci (n=3; P<0.05) further. IL-21P-Luci-CNS-2 responded much greater to c-Maf in the presence of PMA+I stimulation (Fig. 3B). These results suggest that CNS-2 functions as an enhancer of the IL-21 gene and that c-Maf activates IL-21P as well as CNS-2.After cells were stimulated with or without PMA+I for 1 h, ChIP-qPCR assay for IL-21P, CNS-2, and CNS-4 was performed with anti-c-Maf anti-body or control rabbit IgG. Results are expressed as the percent input for each ChIP fraction.

About Target gene

Target gene : Il21(IL-21)
Strong evidence: --
Less strong evidence: ChIP
Target gene experiment description: To determine whether c-Maf actually binds to IL-21P and the CNS-2 enhancer in CD4 + T cells, we performed ChIP analysis.These results suggest that CNS-2 functions as an Enhancer of the IL-21 gene and that c-Maf acti_x005F_x0002_vates IL-21P as well as CNS-2.

About TF

TF name : Maf(2810401A20Rik,A230108G15Rik,AW047063,c-maf)
TF experiment: ChIP
TF experiment description: To determine whether c-Maf actually binds to IL-21P and the CNS-2 Enhancer in CD4 T cells, we performed ChIP analysis.

About Function

Enhancer function : c-Maf induces IL-21 production directly in CD4_x005f_x0002_ T cells by activating IL-21P and the CNS-2 Enhancer and that TGF-β suppresses c-Maf-induced IL-21 production in CD4_x0002_ T cells.
Enhancer function experiment: Luciferase Reporter Assay,PCR
Enhancer function
experiment description:
Taken together with the data shown in Figure 3, these results suggest that c-Maf binds di_x005f_x005f_x005f_x005F_x005f_x005F_x005f_x005F_x0002_rectly to IL-21P and the CNS-2 Enhancer in CD4_x005F_x0001_ T cells after IL-6 stimulation and that TGF-_x0001_ enhances IL-6-induced c-Maf binding to IL-21P and the Enhancer.

About SNP

SNP ID: --
SNP position: --
SNP experiment: --

Enhancer associated network

The number on yellow line represents the distance between enhancer and target gene

Expression of target genes for the enhancer


Enhancer associated SNPs