Results 261 to 270 of about 6,030,389 (286)

Protein synthesis in nuclear residual protein

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1965
1. The incorporation of radioactive amino acids into the nuclear residual protein from calf thymus has been investigated in vitro. 2. The nuclear residue has been found to incorporate actively [14C]tryptophan into its protein. 3. Optimal incorporation of [14C]tryptophan was obtained in the presence of Mg2+, adenosine 5′-triphosphate and an ...
G, PATEL, T Y, WANG
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Protein dynamics in the nuclear compartment

Current Opinion in Genetics & Development, 2002
The classic view of a transcriptional initiation complex is that of an assembly of factors with many protein-protein contacts, leading to a multi-component complex whose existence is a result of the stabilizing influence of the many intermolecular interactions.
Gordon L, Hager, Cem, Elbi, Matthias, Becker   +2 more
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Mechanisms of nuclear protein import

Current Opinion in Cell Biology, 1995
The past two years have seen a significant increase in our understanding of nuclear protein import. Five cytosolic import factors have been identified, two of which have been shown to directly interact with components of the nuclear pore complex. These findings enable refinement of previous models for steps in the nuclear import pathway, and provide a ...
F, Melchior, L, Gerace
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Nuclear Protein Transport Pathways

Nephron Experimental Nephrology, 1999
Nuclear proteins like transcription factors and ribosomal proteins are synthesized in the cytoplasm and have to be transported into the nucleus to fulfill their functions. The transport of proteins >20–60 kD through the nuclear pore complex (NPC) into the nucleus is an active, energy-requiring process.
M, Köhler, H, Haller, E, Hartmann
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Nuclear protein kinase C

Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids, 2006
Protein kinase C (PKC) isozymes constitute a family of ubiquitous phosphotransferases which act as key transducers in many agonist-induced signaling cascades. To date, at least 11 different PKC isotypes have been identified and are believed to play distinct regulatory roles. PKC isoforms are physiologically activated by a number of lipid cofactors. PKC
MARTELLI, ALBERTO MARIA, EVANGELISTI, CAMILLA, Nyakern M., MANZOLI, FRANCESCO ANTONIO   +3 more
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Nuclear basic proteins in spermiogenesis

Biochimie, 1998
In animal species, spermiogenesis, the late stage of spermatogenesis, is characterized by a dramatic remodelling of chromatin which involves morphological changes and various modifications in the nature of the nuclear basic proteins. According to the evolution of species, three situations can be observed: a) persistence of somatic histones or ...
D, Wouters-Tyrou, A, Martinage, P, Chevaillier, P, Sautière   +3 more
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An inhibitor protein of nuclear protein kinases

Nature, 1979
THE cyclical phosphorylation and dephosphorylation of proteins, catalysed by protein kinases and phosphoprotein phosphatases, respectively, are important ways in which cells regulate many of their metabolic activities. Cells seem to have at least two distinct phosphorylation systems, one in the cytoplasm, the other in the nucleus.
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Binding of nuclear proteins to DNA

Archives of Biochemistry and Biophysics, 1974
Nonhistone proteins from rat liver nuclei prepared either by the phenol procedure of Teng et al. (1) or according to Richter and Sekeris (2) and labeled with 125 J (3) were recombined with DNA by stepwise dialysis from high salt-urea solutions. Recombination was evaluated by sucrose gradient centrifugation.
W, Röwekamp, C E, Sekeris
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Nuclear Proteins And The Cell Cycle

1972
Publisher Summary This chapter discusses the biochemistry of the cell cycle in continuously dividing cells and the biochemical events that are described in G0 cells stimulated to proliferate. It also focuses on the proteins of the mammalian nucleus and the role that they may play in the control of cellular proliferation.
G, Stein, R, Baserga
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Identification of a nuclear protein matrix

Biochemical and Biophysical Research Communications, 1974
Abstract The structural framework of the rat liver nucleus has been identified and consists of a nuclear protein matrix. This matrix is 98.4% protein, 0.1% DNA, 1.2% RNA, and 0.5% phospholipid. The nuclear protein matrix is composed primarily of three acidic polypeptide fractions in the molecular weight range of 60–70,000 daltons.
R, Berezney, D S, Coffey
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