McLeod syndrome
| McLeod syndrome | |
|---|---|
| Other names | McLeod phenomenon | 
| McLeod syndrome is inherited in an X-linked recessive manner. | |
McLeod syndrome (/məˈklaʊd/ mə-KLOWD) is an X-linked recessive genetic disorder that may affect the blood, brain, peripheral nerves, muscle, and heart. It is caused by a variety of recessively inherited mutations in the XK gene on the X chromosome. The gene is responsible for producing the Kx protein, a secondary supportive protein for the Kell antigen on the red blood cell surface.