DPM1 and lymphoma: In order to evaluate fOSGN2-P generation in lymphoblastoid cells incapable of generating mature DLO, the DPM synthase deficient (null mutation in mouse DPM1 gene; see Fig. 1) mouse lymphoma cell line Thy-1[25], [37] along with its parental cell line (BW5147.3) were examined as described above.