Results 11 to 20 of about 30,834 (284)

Effect of homopolyribonucleotides on messenger ribonucleoprotein particles [PDF]

open access: greenNucleic Acids Research, 1977
A discrete set of polypeptides copurify with and appear to be specifically attached to mRNA from polysomes of eukaryotic cells. This report describes the effect of homopolyribonucleotides on mRNA-protein complexes separated from ribosome subunits by oligo(dT)-cellulose chromatography.
Bo Sundquist, Torgny Persson
openalex   +5 more sources

Structures of ribonucleoprotein particle modification enzymes. [PDF]

open access: yesQ Rev Biophys, 2011
AbstractSmall nucleolar and Cajal body ribonucleoprotein particles (RNPs) are required for the maturation of ribosomes and spliceosomes. They consist of small nucleolar RNA or Cajal body RNA combined with partner proteins and represent the most complex RNA modification enzymes.
Liang B, Liang B, Li H.
europepmc   +5 more sources

Formation of Ribosomes from Precursor Ribonucleoprotein Particles [PDF]

open access: bronzeJournal of Bacteriology, 1965
Sypherd, Paul S. (University of California, San Diego). Formation of ribosomes from precursor ribonucleoprotein particles. J. Bacteriol. 90: 411–417. 1965.—Amino acid deprivation of a “relaxed” mutant leads to the accumulation of ribonucleoprotein particles.
Paul S. Sypherd
openalex   +4 more sources

Ribonucleoprotein Particles in HeLa Cells [PDF]

open access: bronzeEuropean Journal of Biochemistry, 1972
We have investigated some properties of a class of cytoplasmic ribonucleoprotein particles in HeLa cells. After 3.5 h of labelling in the presence of 0.04 μg/ml actinomycin D to inhibit rRNA synthesis, about 20% of the newly synthesized cytoplasmic RNA, that sediments faster than 7 S, is contained in two types of particles sedimenting at 45 S and 30 S ...
Gerd Wengler   +2 more
openalex   +5 more sources

The assembly of a spliceosomal small nuclear ribonucleoprotein particle. [PDF]

open access: yesNucleic Acids Res, 2008
The U1, U2, U4, U5 and U6 small nuclear ribonucleoprotein particles (snRNPs) are essential elements of the spliceosome, the enzyme that catalyzes the excision of introns and the ligation of exons to form a mature mRNA. Since their discovery over a quarter century ago, the structure, assembly and function of spliceosomal snRNPs have been extensively ...
Patel SB, Bellini M.
europepmc   +5 more sources

Characterization of L1-Ribonucleoprotein Particles [PDF]

open access: yes, 2016
The LINE-1 retrotransposon (L1) encodes two proteins, ORF1p and ORF2p, which bind to the L1 RNA in cis, forming a ribonucleoprotein (RNP) complex that is critical for retrotransposition. Interactions with both permissive and repressive host factors pervade every step of the L1 life cycle.
Kathleen H. Burns   +8 more
openaire   +3 more sources

An intimate view of a spliceosome component

open access: yeseLife, 2015
A high-resolution structure reveals how the ribonucleoprotein particle called U1 snRNP engages with 5′ splice sites.
Timothy W Nilsen
doaj   +1 more source

Vaults. III. Vault ribonucleoprotein particles open into flower-like structures with octagonal symmetry. [PDF]

open access: yes, 1991
The structure of rat liver vault ribonucleoprotein particles was examined using several different staining techniques in conjunction with EM and digestion with hydrolytic enzymes.
Chugani, DC   +3 more
core   +2 more sources

Mitochondrial ribosome assembly in Neurospora. Structural analysis of mature and partially assembled ribosomal subunits by equilibrium centrifugation in CsCl gradients [PDF]

open access: yes, 1982
In Neurospora, one protein associated with the mitochondrial small ribosomal subunit (S-5, Mr 52,000) is synthesized intramitochondrially and is assumed to be encoded by mtDNA.
Lambowitz, Alan M., LaPolla, Robert J.
core   +1 more source

Crystal structure of Schmallenberg orthobunyavirus nucleoprotein-RNA complex reveals a novel RNA sequestration mechanism [PDF]

open access: yes, 2013
Schmallenberg virus (SBV) is a newly emerged orthobunyavirus (family Bunyaviridae) that has caused severe disease in the offspring of farm animals across Europe.
Bottcher, B.   +4 more
core   +1 more source

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