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Biomedical subjects

L PHILIPSON

Publications and source records attributed to L PHILIPSON.

At least 37 records · Page 2Linked to original sources
PubMed1961

The inactivation of enterovirus infectivity by the sulfhydryl reagent p-chloromercuribenzoate.

The infectivity of several enteroviruses was inactivated by the sulfhydryl reagent p-chloromercuribenzoate (PCMB). The rate of inactivation was dependent on the ionic environment in which the reaction was carried out. Inactivation of infectivity was reversed by the thiol compound, reduced glutathione. Under certain conditions, PCMB prevented the adsorption of some enteroviruses to monolayer cultures of monkey kidney cells. The results suggest that enterovirus sulfhydryl groups are involved in the establishment of infection, and that they play a role in the adsorption of virus to host cells.

Benzoates↗
PubMed1961

Chromatographic separation, and characteristics of nucleic acids from HeLa cells.

The application of the phenol-duponol method to extraction of nucleic acids from HeLa cells is described. Chromatography of the phenol extract on an esterified bovine serum albumin column with a salt gradient of sodium chloride gives separation of soluble RNA, DNA, and two different high molecular RNA fractions. Ultracentrifugation of the DNA eluted from the column gives a sedimentation coefficient (s(20) (o),w) of 38, which agrees with ultracentrifugation data on the phenol extract. The eluted RNA appears polydisperse at low ionic strength, but at high ionic strength and after alcohol precipitation two fractions with the sedimentation coefficients of 16 and 25 to 29, respectively, were obtained.

Chromatography↗