Surprisingly, m6A fraction B has a vital role in the immune processes of the body and tumor progression, such as the T cell receptor signaling pathway, basic transcription factors, ubiquitin-mediated protein hydrolysis, renal cell carcinoma, colorectal cancer, chronic granulocytic leukemia, and neurotrophin signaling pathways. The gene discussed is BDNF; the disease is chronic myelogenous leukemia, BCR-ABL1 positive.