The reform legislature passed the Stetson-Eshelman Act, which increased the state Railroad Commissionâs authority and power to fix passenger and freight rates; thus ending Southern Pacific Railroadâs (SP) crushing monopolistic practices.
From Wikipedia, the free encyclopedia. In immunology, an antigen is a molecule capable of inducing an immune response on the part of the host organism, though sometimes antigens can be part of the host itself. In other words, an antigen is any substance that causes an immune system to produce antibodies against it.
Overview. Antibodies are a type of specialized protein generated by the immune system. Antibodies each contain two heavy chain proteins, which link to two smaller light chain proteins. The light chain contains a variable region that allows for an antibody to bind to one specific antigen.