Complement 4 deficiency is a genetic condition affecting
complement component 4
Complement component 4 (C4), in humans, is a protein involved in the intricate complement system, originating from the human leukocyte antigen (HLA) system. It serves a number of critical functions in immunity, tolerance, and autoimmunity with ...
.
It can present with
lupus-like symptoms.
References
External links
Complement deficiency
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