About Enhancer
| Enhancer ID: | E_02_0833 |
| Species: | human |
| Position : | chr6:30904342-30904788   |
| Biosample name: | |
| Experiment class : | Low throughput |
| Enhancer type: | Enhancer |
| Disease: | -- |
| Pubmed ID: | 26813977 |
| Enhancer experiment: | CRISPR/Cas9,Luciferase Reporter Assay,4C-seq |
| Enhancer experiment description: | We designed 1964 sgRNA sequences (Supplemental Table S2) targeting these putative cis-regulatory elements with an average of 11 sgRNA per element (Supplemental Fig. S1A). To eliminate these false positives,we required that a positive cis-regulatory element should have at least two distinct sgRNAs enriched by twofold or more in the eGFP? population in at least three out of the four independent experiments (Supplemental Table S3; Supplemental Fig. S2A). By use of this criterion, no negative control sgRNA passed the filter, while six cis-regulatory elements were identified as positives (Fig. 2A). Next, we tested whether the identified elements could function as enhancers in the classical reporter assays (DHS_37,CTCF_38, DHS_65, DHS_108, and DHS_115).We cloned genomic fragments corresponding to each element into a reporter plasmid containing the 360-bp POU5F1 core promoter region and a luciferase reporter gene. All elements, with the exception of DHS_65, exhibited significant enhancer activities in the H1 cells compared with the control plasmid containing only the POU5F1 core promoter sequence (Fig. 2C). We found that all Temp Enhancers, namely, DHS_37, DHS_65, and DHS_108, are located near regions that show high levels of chromatin interactions with the POU5F1 promoter. To confirm this observation, we also performed 4C-seq experiments in H1 POU5F1-eGFP cells. Again, we found these elements near regions displaying high and consistent interaction frequencies with the POU5F1 promoter (Fig. 4D). |
About Target gene
| Target gene : | POU5F1(OCT3,OCT4,OTF-3,OTF3,OTF4,Oct-3,Oct-4),POU5F1(OCT3,OCT4,OTF-3,OTF3,OTF4,Oct-3,Oct-4) |
| Strong evidence: | 4C-seq |
| Less strong evidence: | Luciferase Reporter Assay |
| Target gene experiment description: | Next, we tested whether the identified elements could function as enhancers in the classical reporter assays (DHS_37,CTCF_38, DHS_65, DHS_108, and DHS_115).We cloned genomic fragments corresponding to each element into a reporter plasmid containing the 360-bp POU5F1 core promoter region and a luciferase reporter gene. All elements, with the exception of DHS_65, exhibited significant enhancer activities in the H1 cells compared with the control plasmid containing only the POU5F1 core promoter sequence (Fig. 2C). We found that all Temp Enhancers, namely, DHS_37, DHS_65, and DHS_108, are located near regions that show high levels of chromatin interactions with the POU5F1 promoter. To confirm this observation, we also performed 4C-seq experiments in H1 POU5F1-eGFP cells. Again, we found these elements near regions displaying high and consistent interaction frequencies with the POU5F1 promoter (Fig. 4D).;Next, we tested whether the identified elements could function as enhancers in the classical reporter assays (DHS_37,CTCF_38, DHS_65, DHS_108, and DHS_115).We cloned genomic fragments corresponding to each element into a reporter plasmid containing the 360-bp POU5F1 core promoter region and a luciferase reporter gene. All elements, with the exception of DHS_65, exhibited significant enhancer activities in the H1 cells compared with the control plasmid containing only the POU5F1 core promoter sequence (Fig. 2C). We found that all Temp Enhancers, namely, DHS_37, DHS_65, and DHS_108, are located near regions that show high levels of chromatin interactions with the POU5F1 promoter. To confirm this observation, we also performed 4C-seq experiments in H1 POU5F1-eGFP cells. Again, we found these elements near regions displaying high and consistent interaction frequencies with the POU5F1 promoter (Fig. 4D). |
About TF
| TF name : | ---- |
| TF experiment: | -- |
| TF experiment description: | --;-- |
About Function
| Enhancer function : | DHS_65 and DHS_108 act in cis to regulate POU5F1 expression |
| Enhancer function experiment: | CRISPR/Cas9 |
| Enhancer function experiment description: |
Those results support our model that DHS_65 and DHS_108 act in cis to regulate POU5F1 transcription. |
About SNP
| SNP ID: | -- |
Upstream Pathway Annotation of TF
| GeneName | Pathway Name | Source | Gene Number |
|---|
Enhancer associated network
The number on yellow line represents the distance between enhancer and
target gene