SEZ6L2 and neuroblastoma: The four proteins that were not found in the databases were; Isoform 3 of seizure 6-like protein 2, full-length cDNA clone CS0DD006YL02 of neuroblastoma of Homo sapiens, isoform 2 of neuroendocrine protein 7B2, and cell adhesion molecule 1 (Table 3).