The CG alpha protein, a shared alpha chain in glycoprotein hormones (TSH, LH, FSH, CG), binds to receptors, initiating signaling pathways. Heterodimeric hormones involve CG alpha and a specific beta chain (TSHB, LHB, FSHB, CGB), imparting biological specificity. FSH Protein, Human (HEK293, Fc) is a recombinant protein dimer complex containing human-derived FSH protein, expressed by HEK293 , with C-hFc labeled tag. FSH Protein, Human (HEK293, Fc), has molecular weight of ~23-24.3 & 45-49 kDa, respectively.