Protein Structure - PDB UniProt ID PDB ID Strain Moleculel Fragment Q12417 5lqw K ACTIN PRE-MRNA Q12417 5gmk O U2 SMALL NUCLEAR RIBONUCLEOPROTEIN A' Q12417 5gm6 O Q12417 5lj3 J UNKNOWN Q12417 5lj5 J UNKNOWN Q12417 5mps J SMALL NUCLEAR RIBONUCLEOPROTEIN SM D2