G. H. Yoakum

Tryptophan photoproduct(s): sensitized induction of strand breaks (or alkali-labile bonds) in bacterial deoxyribonucleic acid during near-ultraviolet irradiation.

Yoakum, G H

Long-wavelength ultraviolet light (300 to 400 nm) converts L-tryptophan to a photoproduct that is toxic for bacterial cells in dark conditions. We now report that similar photoproducts of...

Hepadnavirus infection of peripheral blood lymphocytes in vivo: woodchuck and chimpanzee models of viral hepatitis.

Korba, B E, Wells, F, Tennant, B C, Yoakum, G H, Purcell, R H, Gerin, J L

The peripheral blood lymphocytes (PBL) of five hepatitis B virus (HBV)-infected chimpanzees and 17 woodchuck hepatitis virus (WHV)-infected woodchucks were examined for the presence of viral DNA and...

The purification of the Escherichia coli UvrABC incision system.

Yeung, A T, Mattes, W B, Oh, E Y, Yoakum, G H, Grossman, L

The UvrA, UvrB and UvrC proteins of Escherichia coli have been purified in good yields to homogeneity with rapid three- or four-step purification procedures. The cloned uvrA and uvrB genes were...

Amplification of the uvrA gene product of Escherichia coli to 7% of cellular protein by linkage to the pL promoter of pKC30.

Yoakum, G H, Yeung, A T, Mattes, W B, Grossman, L

We have constructed a hybrid pKC30-uvrA plasmid (pGHY5003) in which transcription of the uvrA gene can be induced under pL control to amplify the uvrA gene product to 7% of cellular protein. To...

Tryptophan photoproduct(s): sensitized induction of strand breaks (or alkali-labile bonds) in bacterial deoxyribonucleic acid during near-ultraviolet irradiation.

Yoakum, G H

Long-wavelength ultraviolet light (300 to 400 nm) converts L-tryptophan to a photoproduct that is toxic for bacterial cells in dark conditions. We now report that similar photoproducts of...

Hepadnavirus infection of peripheral blood lymphocytes in vivo: woodchuck and chimpanzee models of viral hepatitis.

Korba, B E, Wells, F, Tennant, B C, Yoakum, G H, Purcell, R H, Gerin, J L

The peripheral blood lymphocytes (PBL) of five hepatitis B virus (HBV)-infected chimpanzees and 17 woodchuck hepatitis virus (WHV)-infected woodchucks were examined for the presence of viral DNA and...

The purification of the Escherichia coli UvrABC incision system.

Yeung, A T, Mattes, W B, Oh, E Y, Yoakum, G H, Grossman, L

The UvrA, UvrB and UvrC proteins of Escherichia coli have been purified in good yields to homogeneity with rapid three- or four-step purification procedures. The cloned uvrA and uvrB genes were...

Amplification of the uvrA gene product of Escherichia coli to 7% of cellular protein by linkage to the pL promoter of pKC30.

Yoakum, G H, Yeung, A T, Mattes, W B, Grossman, L

We have constructed a hybrid pKC30-uvrA plasmid (pGHY5003) in which transcription of the uvrA gene can be induced under pL control to amplify the uvrA gene product to 7% of cellular protein. To...