5-iodo-4-hydroxy-3-nitrophenylacetyl (NIP)

5-iodo-4-hydroxy-3-nitrophenylacetyl (NIP) is a synthetic hapten widely utilized in immunological research as a model antigen (PubChem CID: 12313450). As a hapten, it is a small molecule that is not immunogenic by itself but can elicit a robust immune response when conjugated to a larger carrier protein like bovine serum albumin (BSA) or chicken gamma globulin (CGG) (PubMed: 701734). It is frequently employed in studies of B-cell activation, antibody affinity maturation, and the structural basis of antigen-antibody interactions (PubMed: 6159784). Researchers often use NIP alongside its analog, 4-hydroxy-3-nitrophenylacetyl (NP), to measure changes in antibody affinity, as specific mutations in immunoglobulin genes can shift preference between these two related structures (PubMed: 3917421). While it is a critical tool for understanding the immune system, it is not a therapeutic target or a biological receptor found naturally in the human body.

Other names

NIP4-hydroxy-3-iodo-5-nitrophenylacetylNIP-hapten3-iodo-4-hydroxy-5-nitrophenylacetyl

Not applicable; NIP is a synthetic hapten used in research to study antibody production and affinity maturation rather than a therapeutic target.