In addition, high cell surface G6B expression was also detected exclusively on JAK2V617F-mutated MPN cell lines (HEL and SET2) and not on the other leukemia cell lines, namely K562, HL60, JURKAT, and MARIMO, and HEK (human embryonic kidney) cells (Figure S7A). This evidence concerns the gene MPIG6B and myeloproliferative neoplasm.