label: Anti-tyrosine phosphatase region of islet antigen-2 antibody positivity
label_lc: anti-tyrosine phosphatase region of islet antigen-2 antibody positivity
description: "The presence of autoantibodies (immunoglobulins) in the serum that react against the tyrosine phossphatase region of islet antigen 2A (this region is a specific part of IA-2). Usually IA-2A are measured using the intracellular portion of IA-2 (IA-2ic) made up of the protein tyrosine phosphatase (PTP) and juxtamembrane (JM) regions."