Results 241 to 250 of about 25,962 (290)

Two distinct arginine methyltransferases are required for biogenesis of Sm-class ribonucleoproteins

Journal of Cell Biology, 2007
Small nuclear ribonucleoproteins (snRNPs) are core components of the spliceosome. The U1, U2, U4, and U5 snRNPs each contain a common set of seven Sm proteins.
Angus Lamond, Francois-Michel Boisvert, Graydon B Gonsalvez   +2 more
exaly   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

The nucleolus: a site of ribonucleoprotein maturation

Current Opinion in Cell Biology, 2003
The nucleolus is the site of ribosomal RNA synthesis, processing and ribosome maturation. Various small ribonucleoproteins also undergo maturation in the nucleolus, involving RNA modification and RNA-protein assembly. Such steps and other activities of small ribonucleoproteins also take place in Cajal (coiled) bodies.
Susan A, Gerbi, Anton V, Borovjagin, Thilo Sascha, Lange   +2 more
openaire   +2 more sources

Informational ribonucleoprotein particles of newt oocytes: Polyribosome-associated ribonucleoproteins

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1974
Various species of rapidly labelled, informational ribonucleoproteins can be isolated from homogenates of newt oocytes. Polyribosome-associated ribonucleoprotein can be separated from heterogeneous nuclear ribonucleoprotein and free cytoplasmic ribonucleoprotein by sucrose gradient centrifugation.
openaire   +2 more sources

Ribonucleoprotein interaction with mammalian monosomes

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1968
Abstract A subcellular fraction containing RNA and protein was prepared from rabbit reticulocytes. This fraction had a sedimentation behavior which was different from reticulocyte ribosomal subunits, and was capable of stimulating polypeptide synthesis in a mammalian cell-free system.
S A, Armentrout, A S, Weisberger
openaire   +2 more sources

The Phlebovirus Ribonucleoprotein: An Overview

In negative strand RNA viruses, ribonucleoproteins, not naked RNA, constitute the template used by the large protein endowed with polymerase activity for replicating and transcribing the viral genome. Here we give an overview of the structures and functions of the ribonucleoprotein from phleboviruses.
Ferron, François, Lescar, Julien
openaire   +3 more sources

Enzyme activity of nuclear ribonucleoproteins

Experimental Cell Research, 1977
Abstract Ultrastructural localization of β-glycerophosphatase, glucose-6-phosphatase, ATPase and NAD pyrophosphorylase was investigated in isolated mouse liver nuclei. β-Glycerophosphatase activity was found in interchromatin granules, in nuclear membranes, perinuclear space, and in nuclear pores.
I B, Buchwalow, E, Unger
openaire   +2 more sources

A Ribonucleoprotein from Amphibian Gastrulæ

Nature, 1958
DISAGGREGATION of amphibian embryos by agents which chelate calcium is succeeded by re-aggregation if the cells are returned to a medium containing calcium1. It is customary to consider that the removal of calcium from the environment of the cells is responsible for the loss of adhesion displayed in disaggregation.
openaire   +2 more sources

RNAs and ribonucleoproteins in recognition and catalysis

European Journal of Biochemistry, 1994
CONTENTS. 1. Did life begin with catalytic RNA?–2. Self‐splicing and self‐cleaving RNAs–2.1 Self‐splicing of group I introns – 2.2 Self‐splicing of group II introns – 2.3 Self‐cleaving RNAs–3. Splicing mediated by trans‐acting factors–3.1 Group III introns – 3.2 Splicing of nuclear pre‐mRNAs – 3.3 Trans‐splicing – 3.4 Is nuclear pre‐mRNA splicing ...
T H, Wittop Koning, D, Schümperli
openaire   +2 more sources

Heterogeneous nuclear ribonucleoprotein complexes

Molecular Biology Reports, 1990
Heterogeneous nuclear r ibonuc leopro te ins (hnRNPs) associate with RNA polymerase II transcripts immediately following the initiation of transcription to form hnRNP complexes. These structures are the functional assemblies within which hnRNAs and pre-mRNAs exist in the nucleus.
openaire   +2 more sources

CHARACTERIZATION OF BRAIN RIBONUCLEOPROTEIN PARTICLES

Journal of Neurochemistry, 1979
Abstract— Brain RNP particles were characterized to determine whether they play a role in the regulation of brain protein synthesis. RNP particles were isolated from the postribosomal supernatant of cerebral hemispheres of young rabbits, employing conditions which minimize adventitious protein‐RNA interactions.
J B, Mahony, I R, Brown
openaire   +2 more sources