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Table 6 Differences in functional enrichments between EPA shortened at FR CTCF and EPA without CTCF using Pathway Commons

From: Characteristics of functional enrichment and gene expression level of human putative transcriptional target genes

Cell type

Term of functional annotation

No. of TF EPA (Association rule 4) shortened at FR CTCF

No. of TF EPA (Association rule 4) without CTCF

P-value

Experimental support

Monocytes

CXCR4-mediated signaling events

33

14

7.81 × 10−12

[29]

 

GPVI-mediated activation cascade

26

3

8.97 × 10−15

[30]

 

Signaling events mediated by TCPTP

23

10

1.46 × 10−8

[31]

 

p38 MAPK signaling pathway

16

8

6.97 × 10−6

[32]

 

IL4-mediated signaling events

11

3

8.80 × 10−6

[33]

CD4+ T cell

CXCR4-mediated signaling events

181

82

< 2.20 × 10−16

[34]

 

Fc-epsilon receptor I signaling in mast cells

85

25

< 2.20 × 10−16

[35]

 

JNK signaling in the CD4+ TCR pathway

65

18

< 2.20 × 10−16

[36]

 

Reelin signaling pathway

62

26

< 2.20 × 10−16

[37]

 

Semaphorin interactions

51

14

< 2.20 × 10−16

[38]

CD20+ B cell

Syndecan-4-mediated signaling events

85

40

< 2.20 × 10−16

[39]

 

CXCR4-mediated signaling events

77

15

< 2.20 × 10−16

[40]

 

EPO signaling pathway

46

19

4.50 × 10−15

[41]

 

Stabilization and expansion of the E-cadherin adherens junction

32

16

1.06 × 10−9

[42]

 

Interleukin-1 signaling

13

1

3.98 × 10−8

[43]

  1. Immune cell-related functional annotations were enriched more in EPA shortened at genomic locations of forward–reverse orientation of CTCF-binding sites than EPA without CTCF. Five annotations are shown in each cell type. These functions are confirmed to be related to the cellular functions by reference journal papers. Chi-square tests were conducted using the total number of putative transcriptional target genes (Additional file 1: Figure S18)