The U1, U2, U4/U6, and U5 small nuclear ribonucleoproteins (snRNPs) are subunits of
splicing complexes that remove introns from mRNA precursors. snRNPs show a complex …

Uridine-rich small nuclear ribonucleoproteins (U snRNPs) are components of the splicing
machinery that removes introns from precursor mRNA. Like other splicing factors, U snRNPs …

Background: Small nuclear ribonucleoproteins (snRNPs), which are essential components
of the mRNA splicing machinery, comprise small nuclear RNAs, each complexed with a set …

In the interphase nucleus of mammalian cells the U1, U2, U4/U6, and U5 small nuclear
ribonucleoproteins (snRNPs), which are subunits of spliceosomes, associate with specific …

Coiled bodies are conserved subnuclear organelles that contain splicing snRNPs, a subset
of nucleolar antigens, and the autoantigen p80 coilin. Most nuclei contain one to five …

The U1, U2, U4/U6 and U5 small nuclear ribonucleoprotein particles (snRNPs) are subunits
of spliceosomes. They are comprised of one or more small nuclear RNAs (snRNAs) and a …

Precursor messenger RNA (pre-mRNA) splicing is catalyzed by the spliceosome, a large
ribonucleoprotein (RNP) complex composed of five small nuclear RNP particles (snRNPs) …

Electrophoretic separation of ribonucleoprotein particles in a nondenaturing gel was used to
analyze the splicing of mRNA precursors. Early in the reaction, a complex formed consisting …

The 17S U2 small nuclear ribonucleoprotein particle (snRNP) represents the active form of
U2 snRNP that binds to the pre-mRNA during spliceosome assembly. This particle forms by …

HeLa cell nuclear splicing extracts have been prepared that are specifically and efficiently
depleted of Ul, U2, or U4/U6 snRNPs by antlsense affinity chromatography using …