KA1 is a reported alias of the human protein 'glutamate ionotropic receptor kainate type subunit 4', encoded by the gene GRIK4. Anti-KA1 antibodies are available from several suppliers. The full protein is reported to be 956 amino acid residues in length. Based on antigen name, there may be fly, canine, porcine, monkey, mouse and rat variants of this protein. See the antibody supplier page for important details, including specific immunogenicity and validated applications.