A complement test is a blood test that measures the activity of a group of proteins in the bloodstream. It's often used to help monitor people being treated for autoimmune diseases like lupus and ...

The complement C3 test results vary depending on the person's health history, age, and sex. The normal range for the complement C3 test is 80 to 160 milligrams per deciliter or 0.8 to 1.6 grams ...

What Happens During a C4 Test? C4 tests are done using a simple blood draw that is usually taken from a vein either on the inside of your elbow or on the back of your hand. You don’t need to do ...

The complement component 4 (C4) test is a simple blood test that can tell you whether you have signs of autoimmune disorders. Learn more.

A nucleoprotein complement-fixation test to assist in the diagnosis of systemic lupus erythematosus is evaluated. There were 25 positive reactions in 600 serum specimens tested.

Bimolecular fluorescence complementation (BiFC) analysis enables direct visualization of protein interactions in living cells. The BiFC assay is based on the discoveries that two non-fluorescent ...

Bimolecular fluorescence complementation (BiFC) is a recent technique used in the investigation and direct visualization of protein–protein interactions (PPIs) and interaction between proteins ...