title: Genetic independence between the HL--A system and deficits in the first and sixth components of complement.
abstract: From two families, one with Clr deficiency and the other with C6 deficiency, evidence was obtained suggesting genetic independence between the transmission of a 50% deficit in the functional activity of these two complement components and the inheritance of the HL--A system, the ABO system, and the sex of individuals.
mesh_terms: D000017:ABO Blood-Group System; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003172:Complement C1 / Q000172:deficiency*; D003183:Complement C6 / Q000172:deficiency*; D003165:Complement System Proteins / Q000172:deficiency*; D005260:Female; D005838:Genotype; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D010375:Pedigree; D012737:Sex Factors
chemical_list: D000017:ABO Blood-Group System; D003172:Complement C1; D003183:Complement C6; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D003165:Complement System Proteins