Results 261 to 270 of about 14,217 (304)
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Penicillin and ribonuclease

Experientia, 1947
L'activite de la ribonuclease vis-a-vis des ribonucleoproteides de la levure est inhibee par la penicilline.
L, MASSART, G, PEETERS, A, VANHOUCKE
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Ribonucleases in Ruminants

Science, 2002
In the recent review by S. A. Benner et al. (“Planetary biology—paleontological, geological, and molecular histories of life,” 3 May, p. [864][1]), Fig. 4 shows an evolutionary tree, which was previously published by the authors ([1][2]) and which was reproduced from a 1986 paper of ours ([2][
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Luminescence of ribonuclease A

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1971
Abstract The effect of disulfide bonds on the phosphorescence properties of tyrosyl residues of model compounds and ribonuclease A was investigated. 1. 1.|The tyrosyl residues of polytyrosine, insulin heptapeptide, lysine-tyrosine copolymer, and cysteinyltyrosine are characterized by luminescence ratios ( q P q F ) which are ...
J E, Churchich, J, Wampler
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Ribonuclease Protection

2002
The ribonuclease protection assay (RPA) is a sensitive technique for the analysis of total cellular RNA. It involves generating a specific antisense riboprobe, hybridizing the probe to total RNA, removing unprotected RNA by RNases, and finally isolating and analyzing the protected RNA on a denaturing gel.
J L, Thorvaldsen, M S, Bartolomei
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Cytotoxicity of Polyspermine-Ribonuclease A and Polyspermine-Dimeric Ribonuclease A

Bioconjugate Chemistry, 2007
Polyspermine-ribonuclease A (PS-RNase A) and polyspermine-dimeric ribonuclease A (PS-dimeric RNase A) were prepared by cross-linking ribonuclease A or its covalently linked dimer to polyspermine (PS) using dimethyl suberimidate. The two RNase A derivatives were tested for a possible antitumor action.
P. POUCKOVA   +9 more
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The microdetermination of ribonuclease

Archives of Biochemistry and Biophysics, 1958
Abstract A solution of ribonucleic acid when mixed at 37 ° with a solution containing serum albumin and gelatin gives a turbidity which may be measured at 400 mμ. The decrease in this turbidity with enzyme action permits the quantitative estimation of 1–50 mμg. of crystalline ribonuclease.
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The eosinophil ribonucleases

Cellular and Molecular Life Sciences (CMLS), 1998
The eosinophil ribonucleases, eosinophilderived neurotoxin (EDN/RNase 2) and eosinophil cationic protein (ECP/RNase 3) are two closely related proteins with intriguing functional and evolutionary properties. While both EDN and ECP maintain the structural and catalytic residues typical of the RNase A superfamily, the role of ribonuclease activity in the
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Protein engineering of ribonucleases

Biochimie, 1998
Natural bovine seminal RNase possesses a potent antitumor action. We have mutagenized monomeric bovine pancreatic RNase A, devoid of any cytotoxic action, to insert residues present at corresponding positions in the subunit of dimeric, antitumor, seminal RNase.
CAFARO, VALERIA   +5 more
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Carbohydrate in Pancreatic Ribonucleases

European Journal of Biochemistry, 1976
A survey of the presence and compositions of carbohydrate chains attached to pancreatic ribonucleases is given. Carbohydrate chains may occur at asparagine residues in Asn-X-Ser/Thr sequences at four exposed sites of the molecule (positions 21, 34, 62 and 76).
BEINTEMA, JJ   +3 more
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Ribonuclease IX. Further studies on ribonuclease inhibitor

Biochimica et Biophysica Acta (BBA) - Specialized Section on Nucleic Acids and Related Subjects, 1962
Abstract Ribonuclease inhibitor was found in the livers of five mammalian species, but could not be detected in the liver of chicken or frog. Detailed examination of the ribonuclease activity of chicken-liver homogenate and various subcellular fractions under different conditions failed to provide convincing evidence for the presence of an inhibitor ...
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