Extractable Nuclear Autoantigen

**Semantic type:** Immunologic Factor|Organic Chemical

**Definition:** A group of autoimmune substances found in the nucleus of a cell which can be extracted from the saline soluble fraction of cells, and may be comprised of (but not limited to) ribonucleoproteins, Smith antigens, Sjogren's antigens, Scl-70 and/or Jo-1 antigens.

**Synonyms:** - ENAs - ENAs - EXTRACTABLE NUCLEAR AUTOANTIGENS - Extractable Nuclear Antigens - Extractable Nuclear Antigens - Saline-extracted Nuclear Antigens - Saline-extracted Nuclear Antigens