G. Pahel

Role of glnB and glnD gene products in regulation of the glnALG operon of Escherichia coli.

Bueno, R, Pahel, G, Magasanik, B

We have isolated insertion and deletion mutants in glnB, the structural gene of PII, a member of the adenylylation system for glutamine synthetase of Escherichia coli, to study the role of PII in the...

Deletion mapping of the polA-metB region of the Escherichia coli chromosome.

Pahel, G, Bloom, F R, Tyler, B

A lambdacI857 prophage inserted into one of the genes of the rha locus was used to select deletions unambiguously ordering the markers polA-glnA-rha-pfkA-tpi-metBJF. Transduction with phage P1...

Complex glnA-glnL-glnG operon of Escherichia coli.

Pahel, G, Rothstein, D M, Magasanik, B

The glnG gene product is both a positive regulator and a negative regulator of the expression of glnA, the structural gene for glutamine synthetase, as well as a positive regulator of the expression...

gltB gene and regulation of nitrogen metabolism by glutamine synthetase in Escherichia coli.

Pahel, G, Zelenetz, A D, Tyler, B M

A mutant (gltB) of Escherichia coli lacking glutamate synthase (GOGAT) was unable to utilize a wide variety of compounds as sole nitrogen source (e.g., arginine, proline, gamma-aminobutyrate, and...

Regulation of expression from the glnA promoter of Escherichia coli in the absence of glutamine synthetase.

Rothstein, D M, Pahel, G, Tyler, B, Magasanik, B

One of the suspected regulators of glutamine synthetase [L-glutamate:ammonia ligase (ADP-forming), EC 6.3.1.2] in enteric bacteria is glutamine synthetase itself. We isolated Escherichia coli strains...

A new glnA-linked regulatory gene for glutamine synthetase in Escherichia coli.

Pahel, G, Tyler, B

Mutations in the glnA region of the Escherichia coli chromosome due to Mu prophage insertion result in two phenotypic classes. One class is Gln- and does not synthesize glutamine...

Role of glnB and glnD gene products in regulation of the glnALG operon of Escherichia coli.

Bueno, R, Pahel, G, Magasanik, B

We have isolated insertion and deletion mutants in glnB, the structural gene of PII, a member of the adenylylation system for glutamine synthetase of Escherichia coli, to study the role of PII in the...

Deletion mapping of the polA-metB region of the Escherichia coli chromosome.

Pahel, G, Bloom, F R, Tyler, B

A lambdacI857 prophage inserted into one of the genes of the rha locus was used to select deletions unambiguously ordering the markers polA-glnA-rha-pfkA-tpi-metBJF. Transduction with phage P1...

Complex glnA-glnL-glnG operon of Escherichia coli.

Pahel, G, Rothstein, D M, Magasanik, B

The glnG gene product is both a positive regulator and a negative regulator of the expression of glnA, the structural gene for glutamine synthetase, as well as a positive regulator of the expression...

gltB gene and regulation of nitrogen metabolism by glutamine synthetase in Escherichia coli.

Pahel, G, Zelenetz, A D, Tyler, B M

A mutant (gltB) of Escherichia coli lacking glutamate synthase (GOGAT) was unable to utilize a wide variety of compounds as sole nitrogen source (e.g., arginine, proline, gamma-aminobutyrate, and...

Regulation of expression from the glnA promoter of Escherichia coli in the absence of glutamine synthetase.

Rothstein, D M, Pahel, G, Tyler, B, Magasanik, B

One of the suspected regulators of glutamine synthetase [L-glutamate:ammonia ligase (ADP-forming), EC 6.3.1.2] in enteric bacteria is glutamine synthetase itself. We isolated Escherichia coli strains...

A new glnA-linked regulatory gene for glutamine synthetase in Escherichia coli.

Pahel, G, Tyler, B

Mutations in the glnA region of the Escherichia coli chromosome due to Mu prophage insertion result in two phenotypic classes. One class is Gln- and does not synthesize glutamine...