CTCF and cancer: CTCF paralogue, CTCFL (CCCTC-binding factor-Like, also known as BORIS, Brother of the Regulator of Imprinted Sites or CT27: Cancer/Testis antigen 27) is transcribed from a gene in human chromosome 20q13.31 (Gene ID: 140690, Ensembl gene: ENSG00000124092).