Ankylosing Spondylitis 1, also known as ankylosing spondylitis, susceptibility to, 1, is related to spondylitis and spondyloarthropathy 1. An important gene associated with Ankylosing Spondylitis 1 is HLA-B (Major Histocompatibility Complex, Class I, B), and among its related pathways/superpathways are Complement cascade and IL-17 Family Signaling Pathways. Affiliated tissues include bone and eye, and related phenotypes are digestive/alimentary and immune system