Tumor necrosis factor receptor 2, also known as tumor necrosis factor receptor superfamily member 1B and CD120b, is one of two membrane receptors that binds tumor necrosis factor-alpha.

Tumor necrosis factor receptor 1, also known as tumor necrosis factor receptor superfamily member 1A and CD120a, is a ubiquitous membrane receptor that binds tumor necrosis factor-alpha.

The tumor necrosis factor superfamily is a protein superfamily of type II transmembrane proteins containing TNF homology domain and forming trimers.