U1 Small Nuclear Ribonucleoprotein

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** The U1 small nuclear ribonucleoprotein (snRNP) complex, which contains the U1-snRNA, the U1-associated proteins 70kDa-U1, U1A, U1C, and the seven core Smith (Sm) proteins.

**Synonyms:** - Ribonucleoprotein-70 - Ribonucleoprotein-70 Antigen - U1 SMALL NUCLEAR RIBONUCLEOPROTEIN 70 KDA - U1 snRNP 70 kDa - U1 snRNP 70 kDa Antigen - snRNP70 - snRNP70 Antigen