MAb 11E4 specifically recognizes (B)-subunit of human TSH. MAbs 7G12, 10C7 and 5E8 specifically recognize the whole molecule of TSH. MAbs 7G12, 10C7 and 5E8 do not cross-react with human LH, FSH, HCG. MAbs TSB1 and TSB4 specifically recognize (B)-subunit of human TSH. MAbs TSB1 and TSB4 do not cross-react with human LH, FSH, HCG.Detection of human TSH in two-site enzyme immunoassay. Recommended pairs (capture - conjugate): 11E4 - 7G12, 10C7 - 5E8, TSB1 - TSB4