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.
URL of this page: //medlineplus.gov/ency/article/002223.htm. An antibody is a protein produced by the body's immune system when it detects harmful substances, called antigens. Examples of antigens include microorganisms (bacteria, fungi, parasites, and viruses) and chemicals. Antibodies may be produced when the immune system mistakenly considers healthy tissue a harmful substance. This is called an autoimmune disorder. Each type of antibody is unique and defends the body against one specific type of antigen.