Spondyloarthropathy 1, also known as ankylosing spondylitis, is related to spondylitis and juvenile ankylosing spondylitis, and has symptoms including pain, stiffness in the spine and stiffness in the neck. An important gene associated with Spondyloarthropathy 1 is HLA-B (Major Histocompatibility Complex, Class I, B), and among its related pathways/superpathways are Innate Immune System and MIF Mediated Glucocorticoid Regulation. The drugs Lidocaine and Triamcinolone have been mentioned in the context of this disorder. Affiliated tissues include Placenta, Umbilical Cord and bone, and related phenotypes are kyphosis and inflammation of the large intestine