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Table 4 Proportions of CTCF-mediated interactions involving cCTCF and non-constitutive CTCF sites

From: Characterization of constitutive CTCF/cohesin loci: a possible role in establishing topological domains in mammalian genomes

Category of interaction

Count (%)

CTCF type in region 1/2

CTCF type in region 2/1

(A) K562

cCTCF

cCTCF

8,484 (33.5%)

cCTCF

Neither

3,107 (11.9%)

cCTCF

Any CTCF excluding cCTCF

8,991 (35.5%)

Any CTCF excluding cCTCF

Any CTCF excluding cCTCF

2,567 (10.1%)

Any CTCF excluding cCTCF

Neither

1,627 (6.4%)

Neither

Neither

617 (2.4%)

(B) MCF7 replicate 1

cCTCF

cCTCF

13,176 (26.1%)

cCTCF

Neither

6,590 (13.1%)

cCTCF

Any CTCF excluding cCTCF

17,601 (34.9%)

Any CTCF excluding cCTCF

Any CTCF excluding cCTCF

6,738 (13.3%)

Any CTCF excluding cCTCF

Neither

4,265 (8.5%)

Neither

Neither

2,127 (4.2%)

(C) MCF7 replicate 2

cCTCF

cCTCF

6,026 (29.9%)

cCTCF

Neither

2,332 (11.6%)

cCTCF

Any CTCF excluding cCTCF

6,693 (33.2%)

Any CTCF excluding cCTCF

Any CTCF excluding cCTCF

2,219 (11.0%)

Any CTCF excluding cCTCF

Neither

1,469 (7.3%)

Neither

Neither

1,401 (7.0%)