title: Molecular genetics of the fourth component of human complement and steroid 21-hydroxylase.
mesh_terms: D000483:Alleles; D000595:Amino Acid Sequence; D002872:Chromosome Deletion; D002874:Chromosome Mapping; D003181:Complement C4 / Q000235:genetics*; D004262:DNA Restriction Enzymes; D005784:Gene Amplification; D005796:Genes; D008040:Genetic Linkage; D006801:Humans; D011110:Polymorphism, Genetic; D013255:Steroid 21-Hydroxylase / Q000235:genetics*; D013250:Steroid Hydroxylases / Q000235:genetics*
chemical_list: D003181:Complement C4; D013250:Steroid Hydroxylases; D013255:Steroid 21-Hydroxylase; D004262:DNA Restriction Enzymes