MMP21 mutations causing autosomal recessively inherited heterotaxy
Causing a developmental disorder By whole-exome and whole-genome sequencing evidence has been found that MMP21 gene mutations may cause an autosomal recessively inherited form of heterotaxy. Heterotaxy (or heterotaxia) is an abnormal positioning of the thoracic and/or abdominal organs reversing left/right with respect to normal. The incidence is approximately 1/15,000. Mutations in several other genes and all kinds of inheritance