We previously described a family in which predisposition to pheochromocytoma (PCC), segregates into three generations with a germline heterozygous nucleotide variant of KIF1B (c.4442G>A, p.Ser1481Asn) which encodes the kinesin-like protein KIF1B (1). The gene discussed is KIF1B; the disease is adrenal gland pheochromocytoma.