Application of DNA (deoxyribonucleic acid) binding site CTCF_13 of multifunctional transcriptional regulation factor CTCF

The invention discloses a novel use of a DNA (deoxyribonucleic acid) binding site CTCF_13 of a multifunctional transcription regulation factor CTCF, i.e. application thereof to preparation of a kit for early diagnosis of colorectal neoplasms. The nucleotide sequence of the binding site is shown as SEQ ID NO:1. The accuracy of the binding site CTCF, provided by the invention, in detection of either colorectal adenomas or the colorectal neoplasms is remarkably higher than that of a reported DNA methylated molecular marker; moreover, the DNA binding site of the CTCF is also likely to become a biomarker for tumor treatment effect monitoring, prognosis effect evaluation and tumor molecular typing (such as CIMP typing). In brief, a novel concept is provided for seeking for a more effective molecular marker for early diagnosis of tumors, treatment effect monitoring, prognosis effect evaluation and molecular typing, and is significant for tumor prevention and treatment. 本发明公开了种多功能转录调控因子CTCF的DNA结合位点CTCF_13的新用途，即其在制备用于