What is an approximate number of CTCF binding sites in the human genome?
['To study CTCF multivalency in\xa0vivo, we define ZF binding requirements at ∼50,000 genomic sites in primary lymphocytes. ', 'However, only ~3,700 out of the ~5,700 CTCFL- and ~31,000 CTCF-binding sites overlap.']
['The number of CTCF binding sites in the human genome lies between 31,000 and 50,000.']
['30,000-50,000']