GPPPPPGKPQGPPPQGGNKPQGPPPPGKPQGPPAQGGSKSQSARAPPGKPQGPPQQE GNNPQGPPPPAGGNPQQPQAPP or an amino acid sequence that is at least 75% identical to said sequence, and the formation of an antigen-antibody conjugate is a positive indictor for Sjögren's Syndrome.
Diagnostic for sjorgen's syndrome based on a biomarker