Samsn1, alias HACS1, NASH1, and SLy2, is mainly expressed in normal hematopoietic tissues and malignant tumors of the hematopoietic system, such as multiple myeloma, lymphoma, etc., and also in gallbladder, heart, lung, brain, and other tissues [42]. The gene discussed is SAMSN1; the disease is AL amyloidosis.