Specific for human N-terminal proBNP (NT-proBNP, a.a.r. 13-24). Can be used for NT-proBNP and proBNP immunoassay; works in WB. Recognizes circulating proBNP and can be used for the development of quantitative proBNP assays in pairs with anti-BNP MAbs (HyTest Cat.# 4BNP2). The best pairs (coating - conjugate): 7B5 - 2G9 (Cat. # 4BNP2).