Results 191 to 200 of about 29,897 (227)

Polylysine: An Activator of Smooth Muscle Contractility

1991
Polycationic amines are known to affect a wide variety of biochemical reactions and have thus been used as probes of mechanism in cell-free systems and isolated cell fractions (Ahmed et al., 1986; Groschel-Stewart et al., 1989). Polycations are of particular interest to the study of the mechanisms of regulation of contractility in smooth muscle for ...
P T, Szymanski, R J, Paul
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Interfacial instability and the agglutination of erythrocytes by polylysine

European Biophysics Journal, 1985
Human erythrocytes have been exposed to polylysine of molecular weight range 4 to 220 kDa and concentration range 0.5 to 2,000 micrograms/ml at 37 degrees C. Threshold concentrations for cell agglutination by the polycation have been determined for the samples of different molecular weight.
W T, Coakley, L A, Hewison, D, Tilley
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Biodegradation of ornithine-containing polylysine hydrogels

Biomaterials, 1998
The degradation of the cross-linked cationic poly(amino acid)-glutaraldehyde (GA) hydrogels by two kinds of proteolytic enzymes, trypsin and Aspergillus Protease Type XXIII, and by seven species of soil filamentous fungi has been investigated using homo- and copolypeptides of lysine (Lys) and ornithine (Orn).
K, Ohkawa, T, Kitsuki, M, Amaike, H, Saitoh, H, Yamamoto   +4 more
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Detection of Penicillin Hypersensitivity With Penicilloyl-Polylysine

JAMA, 1963
According to recent concepts, the haptenes responsible for penicillin hypersensitivity are penicillin derivatives rather than the penicillin molecule itself. Penicilloyl-polylysine has been administered as a skin test to 1,022 naval recruits to determine correlation between skin reactions and systemic penicillin allergy.
M W, RYTEL, F M, KLION, T R, ARLANDER, L F, MILLER   +3 more
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Some properties of polylysine-accessible DNA

Cell Biology International Reports, 1981
DNA regions in rat liver chromatin which are accessible to polylysine were isolated using three molecular weights of polylysine so as to overcome possible artefacts in measuring the DNA size. Sucrose gradient centrifugation showed a series of peaks or shoulders corresponding to sizes of 65, 110, 210, 370, 600 and 1,200 base pairs.
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The chromatography of polylysine

Journal of Chromatography A, 1962
J W, STEWART, M A, STAHMANN
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Effect of Polylysine on Immune Hemoantibodies in Mice,

The Journal of Immunology, 1960
Summary Significant depressions of immune antibodies for sheep red cells were found in mice of five inbred strains injected with nontoxic quantities of polylysine concurrently with the administration of the red cells. In mice of three strains—DBA, C3H, and C57BL—only male, but not female, mice responded in this manner.
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Colorimetric method for estimating polylysine and polyarginine

Analytical Biochemistry, 1972
A rapid and sensitive method is described for estimating polylysine and polyarginine. The method involves the stoichiometric precipitation of these polyamino acids by excess of the anionic dye methyl orange, followed by spectrophotometric determination of unbound dye. 10 μg or less of polylysine or polyarginine can thus be estimated.
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Interaction of heme a and polylysine

Biochemical and Biophysical Research Communications, 1966
T E, King, F C, Yong, S, Takemori
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Polylysine

2007
S.J. Enna, David B. Bylund
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