This article is about notable uniformed police officers in the New York Police Department. For a list of police commissioners, see List of NYPD Police Commissioners. This is a list of New York City Police Department (NYPD) officers.
The B-cell receptor includes both CD79 and the immunoglobulin. The plasma membrane of a B cell is indicated by the green phospholipids. The B cell receptor extends both outside the cell (above the plasma membrane) and inside the cell (below the membrane).The B-cell receptor or BCR is a transmembrane receptor protein located on the outer surface of B-cells.he plasma membrane of a B cell is indicated by the green phospholipids. The B cell receptor extends both outside the cell (above the plasma membrane) and inside the cell (below the membrane). The B-cell receptor or BCR is a transmembrane receptor protein located on the outer surface of B-cells.
Because of these rearrangements, each of the approximately 1012 B cells and 1012 T cells in a human being has a different receptor on its surface. These B and T cells exist within the blood and lymphatic system of the body in what is called a resting state--that is, they are not doing anything detectable. However, when a B or T cell encounters an invader that can bind to its receptor, the cell divides many times and so creates lots of daughter cells.