Results 301 to 310 of about 4,013,382 (355)
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Annual Review of Nutrition, 1990
Folate-binding proteins of three major classes have been observed in various bodily fluids and in the plasma membrane and cytoplasm of normal and neoplastic cells. A major class, the high-affinity folate-binding proteins, show a preferential and tight binding of folic acid relative to reduced folates and methotrexate and consist of water-soluble and ...
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Folate-binding proteins of three major classes have been observed in various bodily fluids and in the plasma membrane and cytoplasm of normal and neoplastic cells. A major class, the high-affinity folate-binding proteins, show a preferential and tight binding of folic acid relative to reduced folates and methotrexate and consist of water-soluble and ...
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Chemistry and Physics of Lipids, 1985
A binding protein is described for certain oxygenated derivatives of cholesterol which suppress 3-hydroxy-3-methylglutaryl coenzyme A reductase and cholesterol synthesis in cultured mammalian cells. This protein is found in the cytosolic fraction of many cell types and is distinct from cytosolic proteins which bind cholesterol.
Taylor, F R, Kandutsch, A A
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A binding protein is described for certain oxygenated derivatives of cholesterol which suppress 3-hydroxy-3-methylglutaryl coenzyme A reductase and cholesterol synthesis in cultured mammalian cells. This protein is found in the cytosolic fraction of many cell types and is distinct from cytosolic proteins which bind cholesterol.
Taylor, F R, Kandutsch, A A
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Frontiers in Bioscience, 1999
PCNA (proliferating cell nuclear antigen), originally characterized as a DNA polymerase accessory protein, functions as a DNA sliding clamp for DNA polymerase delta and is an essential component for eukaryotic chromosomal DNA replication. Recent studies have revealed a striking feature of PCNA in its ability to interact with multiple partners, involved,
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PCNA (proliferating cell nuclear antigen), originally characterized as a DNA polymerase accessory protein, functions as a DNA sliding clamp for DNA polymerase delta and is an essential component for eukaryotic chromosomal DNA replication. Recent studies have revealed a striking feature of PCNA in its ability to interact with multiple partners, involved,
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Cellular and Molecular Life Sciences (CMLS), 1999
Nickel enzymes are a relatively new class of metalloenzymes. The seven known nickel enzymes are urease, hydrogenase, CO-dehydrogenase, methyl-coenzyme M reductase, Ni-superoxide dismutase, glyoxalase I and cis-trans isomerase. The requirement for nickel implies the presence of a nickel-processing system, since free transition metals are harmful to the ...
R K Wattt, P W Ludden
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Nickel enzymes are a relatively new class of metalloenzymes. The seven known nickel enzymes are urease, hydrogenase, CO-dehydrogenase, methyl-coenzyme M reductase, Ni-superoxide dismutase, glyoxalase I and cis-trans isomerase. The requirement for nickel implies the presence of a nickel-processing system, since free transition metals are harmful to the ...
R K Wattt, P W Ludden
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Science, 1988
Study of proteins that recognize specific DNA sequences has yielded much information, but the field is still in its infancy. Already two major structural motifs have been discovered, the helix-turn-helix and zinc finger, and numerous examples of DNA-binding proteins containing either of them are known. The restriction enzyme Eco RI uses yet a different
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Study of proteins that recognize specific DNA sequences has yielded much information, but the field is still in its infancy. Already two major structural motifs have been discovered, the helix-turn-helix and zinc finger, and numerous examples of DNA-binding proteins containing either of them are known. The restriction enzyme Eco RI uses yet a different
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BioEssays, 1991
AbstractCells express many proteins that bind to laminin, the major adhesive component of basement membranes. Some of these, specifically integrins, function as transmembrane receptors that ‘signal’ the presence of laminin on the cell surface to the cytoplasm.
Mercurio, Arthur M., Shaw, Leslie M.
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AbstractCells express many proteins that bind to laminin, the major adhesive component of basement membranes. Some of these, specifically integrins, function as transmembrane receptors that ‘signal’ the presence of laminin on the cell surface to the cytoplasm.
Mercurio, Arthur M., Shaw, Leslie M.
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The Thyroxine-Binding Proteins
Thyroid, 2000The slow clearance, prolonged half-life, and high serum concentration of thyroxine (T4) are largely due to strong binding by the principal plasma thyroid hormone-binding proteins, thyroxine-binding globulin (TBG), transthyretin (TTR), and albumin. These proteins, which shield the hydrophobic thyroid hormones from their aqueous environment, buffer a ...
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Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids, 2006
Emerging information on sphingolipid metabolism and signaling is leading to a better understanding of cellular processes such as apoptosis, cancer, cell survival and aging. In this review, we discuss the involvement of sphingolipids in these processes and focus on underlying mechanisms based on sphingolipid:protein interactions.
Jeffrey A. Jones +2 more
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Emerging information on sphingolipid metabolism and signaling is leading to a better understanding of cellular processes such as apoptosis, cancer, cell survival and aging. In this review, we discuss the involvement of sphingolipids in these processes and focus on underlying mechanisms based on sphingolipid:protein interactions.
Jeffrey A. Jones +2 more
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Clinical Pharmacology & Therapeutics, 1978
The protein binding of the new nonsteroidal anti‐inflammatory agent tolmetin to human serum albumin (HSA) and to the plasma of 8 healthy subjects was studied by equilibrium dialysis at 37° and pH 7.4 with 14C‐tolmetin. Over the total concentration (Ct) range 3.0 to 28.7 µg/ml (therapeutic range), the fraction oftolmetin unbound to 4% HSA was largely ...
J. Thomas, Barry W. Madsen, M. L. Selley
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The protein binding of the new nonsteroidal anti‐inflammatory agent tolmetin to human serum albumin (HSA) and to the plasma of 8 healthy subjects was studied by equilibrium dialysis at 37° and pH 7.4 with 14C‐tolmetin. Over the total concentration (Ct) range 3.0 to 28.7 µg/ml (therapeutic range), the fraction oftolmetin unbound to 4% HSA was largely ...
J. Thomas, Barry W. Madsen, M. L. Selley
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Journal of Protein Chemistry, 2001
Using a new method recently published for analyzing the binding isotherms of biopolymers (Poland, 2000a), we calculate the complete binding polynomials for lysozyme, insulin, and serum albumin from published titration data. These three proteins have, respectively, 22, 32, and 184 dissociable protons and hence are represented by series in powers of the ...
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Using a new method recently published for analyzing the binding isotherms of biopolymers (Poland, 2000a), we calculate the complete binding polynomials for lysozyme, insulin, and serum albumin from published titration data. These three proteins have, respectively, 22, 32, and 184 dissociable protons and hence are represented by series in powers of the ...
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