complement C4s (acidic complement C4)

Polymorphism

• complement component C4 is polymorphic at 2 loci, C4A & C4B
• 13 alleles of C4A & 22 alleles of C4B have been detected
• the C4A alleles carry the Rodgers blood group antigen
• the C4B alleles carry the Chido blood group antigens

More general terms

• complement-4 (C4)

More specific terms

• Chido blood group antigen
• Rodgers blood group antigen

Database

• OMIM: https://mirror.omim.org/entry/120810
• OMIM: https://mirror.omim.org/entry/120790
• UniProt: http://www.uniprot.org/uniprot/P0C0L4.html