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The SERPINA1 Gene, serpin family A member 1

The SERPINA1 gene provides instructions for making a protein called alpha-1 antitrypsin, which is a type of serine protease inhibitor (serpin)

Polymerase Chain Reaction (PCR) Testing

The polymerase chain reaction (PCR) is a fast and inexpensive technique used to "amplify" - copy - small segments of DNA to enable testing.

Learn About Antibodies and Antigens

Antibodies, or immunoglobulins, are proteins made by the body that help fight against foreign substances called antigens.

Nucleic Acid Amplification Testing (NAAT)

A nucleic acid test (NAT) is a technique used to detect genetic material (DNA or RNA) in analysed samples