BTG3 and autoimmune hepatitis: Based on autoantibodies, AIH is categorized in two major form: type 1 is characterized by the presence of circulating antinuclear antibodies (ANA) and smooth muscle antibodies (SMA); and type 2 is determined by the presence of anti-liver-kidney microsomal 1 (LKM-1) and anti-liver cytosol 1 (ALC-1) antibodies (6).