Y. M. Kupersztoch-Portnoy

Thermoactivation of a periplasmic heat-stable enterotoxin of Escherichia coli

L. Guzmán-Verduzco, R. Fonseca, Y. M. Kupersztoch-Portnoy, 1983, Journal of bacteriology.

Antibiotic Resistance of Gram Negative Bacteria in Mexico: Relationship to Drug Consumption

Y. M. Kupersztoch-Portnoy, 1981 .

Strand and site specificity of the relaxation event for the relaxation complex of the antibiotic resistance plasmid R6K.

D. Helinski, M. Lovett, Y. M. Kupersztoch-Portnoy, 1974, Biochemistry.

Catabolite repression of Escherichia coli heat-stable enterotoxin activity

H. Stieglitz, L. Guzmán-Verduzco, Y. M. Kupersztoch-Portnoy, 1981, Journal of bacteriology.

Linkage of heat-stable enterotoxin activity and ampicillin resistance in a plasmid isolated from an Escherichia coli strain of human origin

H. Stieglitz, J. Olarte, R. Fonseca, 1980, Infection and immunity.

Construction and characterization of new cloning vehicles. V. Mobilization and coding properties of pBR322 and several deletion derivatives including pBR327 and pBR328.

F. Bolivar, A. Covarrubias, X. Soberón, 1981, Gene.

Properties of the Relaxation Complexes of Supercoiled Deoxyribonucleic Acid and Protein of the R Plasmids R64, R28K, and R6K

G. L. Miklos, D. Helinski, Y. M. Kupersztoch-Portnoy, 1974, Journal of bacteriology.