title: Alpha-1-antitrypsin: evidence for a fifth PI M subtype and a new deficiency allele PI*Z augsburg.
abstract: The phenotypes of the protease inhibitor (PI) alpha-1-antitrypsin have been analyzed by isoelectric focusing on polyacrylamide gels. With improved resolution by a modified procedure it was possible to demonstrate a fifth PI*M suballele. The bands of PI M5 are located between PI M1 and PI M3. In addition, a further deficiency allele similar to PI*Z was found in a female patient with obstructive pulmonary disease. This variant was provisionally named PI Z augsburg (PI Z aug). Family data confirm a simple codominant mode of inheritance for PI Z aug.
mesh_terms: D000328:Adult; D000483:Alleles; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007525:Isoelectric Focusing; D008297:Male; D008875:Middle Aged; D010375:Pedigree; D010641:Phenotype; D011110:Polymorphism, Genetic; D000515:alpha 1-Antitrypsin / Q000235:genetics*; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin