4FQP, 1DGI, 1NN8, 3EPC, 3EPD, 3EPF, 3J8F, 3J9F, 3UDW, 3URO5817n/aENSG00000073008n/aP15151n/aNM_001135768NM_001135769NM_001135770NM_006505n/aNP_001129240NP_001129241NP_001129242NP_006496n/aCD155 (cluster of differentiation 155), also known as the poliovirus receptor, is a protein that in humans is encoded by the PVR gene.

[5] Its normal cellular function is in the establishment of intercellular adherens junctions between epithelial cells.

[6] Subsequent data has also suggested that CD155 may also be used to positively select MHC-independent T cells in the thymus.

Transgenic mice that express the PVR gene have been constructed in order to study polio experimentally.

[8] This article incorporates text from the United States National Library of Medicine, which is in the public domain.