Anti-Ribonucleoprotein Antibody

**Semantic type:** Amino Acid, Peptide, or Protein|Immunologic Factor

**Definition:** An antinuclear antibody directed against U1 snRNP, that is strongly associated with mixed connective tissue disease and commonly detected in lupus.

**Synonyms:** - Anti-RNP - Anti-RNP Antibody - Anti-RNP Antibody - Anti-Ribonucleoprotein - RNP Antibody - Ribonucleoprotein Antibody