Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing: the first line of defense against ...

Complement cascade is made up of about 30 proteins that cleave one another in a series of reactions that radiates from an initial binding site on a pathogen. Best known for its action against bacteria ...

A new study published in the journal Science Immunology analyzed lung epithelial cells from patients infected with COVID-19 and found the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ...

Also called C3G, this rare kidney disease often affects children and young adults, but it can happen at any age. It has a major impact on a person’s health and life. C3G has two forms: dense deposit ...