BAER H, KABAT E A, KNAUB V
J Exp Med. 1950 Jan 1;91(1):105-14. doi: 10.1084/jem.91.1.105.
Blood group substances have been isolated from the saliva of human beings of blood group B and from the linings of individual horse stomachs. The properties of the human B substances are similar to those of hog and human blood group substances previously isolated. The horse substances showed lower hexosamine and reducing sugar and higher total and non-hexosamine nitrogen than do the materials from the other species. Materials isolated from individual horse stomachs possess either A or B activity or both. Certain stomachs yielded products of identical analytical composition but with neither blood group A, B, or O activity as measured by their ability to inhibit isoagglutination. Fucose has been identified as a constituent of the horse blood group substances.
血型物质已从B型血人的唾液以及个别马的胃黏膜中分离出来。人类B物质的特性与先前分离出的猪和人类血型物质的特性相似。与其他物种的物质相比,马的物质显示出较低的己糖胺和还原糖含量,以及较高的总氮和非己糖胺氮含量。从个别马的胃中分离出的物质具有A或B活性,或两者兼具。某些胃产生的产物具有相同的分析组成,但通过其抑制同种凝集的能力测定,既没有A、B或O血型活性。岩藻糖已被鉴定为马血型物质的一种成分。