Galectin-9 (Gal-9) is a member of animal lectins that have an affinity to ß-galactosides and Forssman pentasaccharide. It is strongly overexpressed in Hodgkin's disease tissue and it might participate in the interaction between the H&RS cells with their surrounding cells and might thus play a role in the pathogenesis of this disease and/or its consistently associated immunodeficiency. Recombinant Galectin-9 protein was expressed in E.coli and purified by using conventional chromatography techniques. Synonyms: LGALS9, Gal-9, Tumor antigen HOM-HD-21, Ecalectin, galectin 9, HOM HD 21, HOMHD21, HUAT, Lectin galactoside binding soluble 9, LGAL S9, LGALS 9, LGALS9A, MGC117375, MGC125973, MGC125974, Urate transporter/channel protein, galectin 9. NCBI no.: NP_033665