[EsD gene defect in the myocardium of a 33-year-old man (author's transl)].

While establishing normal EsD patterns in human body tissues, one exception was found among 253 samples (23 different tissues from each of 11 cadavers). No EsD activity could be established in the zymogram for the myocardium extract from a 33-year-old man although the other tissues, erythrocyte hemolysate, and spermatocystic secretion were characteristic for the type 2-1.