title: Factor XIII deficiency. A family study by measurement of factor XIII subunits A and S.
abstract: A girl with congenital factor XIII deficiency and her large family have been studied by electroimmunoassay of factor XIII subunits A and S. The homozygote has absence of subunit A and a decreased level of subunit S. The heterozygotes have decreased levels of both subunits, and were more readily identified by measurement of subunit A than by the ratio subunit S/subunit A. The mother of the propositus appears to be a new heterozygote, but heterozygosity on the paternal side is traced through three generations.
mesh_terms: D000328:Adult; D002648:Child; D005176:Factor XIII / Q000235:genetics; D005177:Factor XIII Deficiency / Q000151:congenital / Q000235:genetics*; D005260:Female; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D008297:Male; D010375:Pedigree
chemical_list: D005176:Factor XIII