An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
The Graham Avenue Line and Tompkins Avenue Line were two public transit lines in Brooklyn, New York City with the Graham Avenue Line running mainly along Graham Avenue, and Manhattan Avenue and the Tompkins Avenue Line running mainly along Tompkins Avenue.
The B43 was a United States air-dropped variable yield nuclear weapon used by a wide variety of fighter bomber and bomber aircraft.
B-lymphocyte antigen CD19, also known as CD19 molecule ('''C'''luster of '''D'''ifferentiation 19), B-Lymphocyte Surface Antigen B4, T-Cell Surface Antigen Leu-12 and CVID3 is a transmembrane protein that in humans is encoded by the gene CD19.
The Douglas XB-43 Jetmaster is an American 1940s jet-powered prototype bomber.