Abraham Eisenstark

Carbon and nitrogen substrate utilization by archival Salmonella typhimurium LT2 cells (2002)

Tracy, Breca S, Edwards, Kelly K, Eisenstark, Abraham

Abstract Background A collection of over 20,000 Salmonella typhimurium LT2 mutants, sealed for four decades in agar stabs, is a unique resource for study of genetic and evolutionary changes....

rpoS Mutants in Archival Cultures of Salmonella enterica Serovar Typhimurium

Sutton, Amy, Buencamino, Raphael, Eisenstark, Abraham

Long-term survival under limited growth conditions presents bacterial populations with unique environmental challenges. The existence of Salmonella enterica serovar Typhimurium cultures undisturbed...

The Tryptophanase Gene Cluster of Haemophilus influenzae Type b: Evidence for Horizontal Gene Transfer

Martin, Kimberly, Morlin, Gregory, Smith, Arnold, Nordyke, Andrea, Eisenstark, Abraham, Golomb, Miriam

Among strains of Haemophilus influenzae, the ability to catabolize tryptophan (as detected by indole production) varies and is correlated with pathogenicity. Tryptophan catabolism is widespread (70...

RpoS (Sigma-S) Controls Expression of rsmA, a Global Regulator of Secondary Metabolites, Harpin, and Extracellular Proteins in Erwinia carotovora†

Mukherjee, Asita, Cui, Yaya, Ma, Weilei, Liu, Yang, Ishihama, Akira, Eisenstark, Abraham, ...

RpoS (sigma-S or sigma-38) controls a large array of genes that are expressed during stationary phase and under various stress conditions in Escherichia coli and other bacteria. We document here that...

Evolution of the Major Pilus Gene Cluster of Haemophilus influenzae

Mhlanga-Mutangadura, Tendai, Morlin, Gregory, Smith, Arnold L., Eisenstark, Abraham, Golomb, Miriam

Haemophilus influenzae is a ubiquitous colonizer of the human respiratory tract and causes diseases ranging from otitis media to meningitis. Many H. influenzae isolates express pili (fimbriae), which...

Genomic Diversification among Archival Strains of Salmonella enterica Serovar Typhimurium LT7

Liu, Gui-Rong, Edwards, Kelly, Eisenstark, Abraham, Fu, Ying-Mei, Liu, Wei-Qiao, Sanderson, Kenneth E., ...

To document genomic changes during long periods of storage, we analyzed Salmonella enterica serovar Typhimurium LT7, a mutator strain that was previously reported to have higher rates of mutations...

Diversity of Phage Types among Archived Cultures of the Demerec Collection of Salmonella enterica serovar Typhimurium Strains†

Rabsch, Wolfgang, Helm, R. Allen, Eisenstark, Abraham

The existence of several thousand Salmonella enterica serovar Typhimurium LT2 and LT7 cultures originally collected by M. Demerec and sealed in agar stab vials for 33 to 46 years is a resource for...

DNA Amplification and Rearrangements in Archival Salmonella enterica Serovar Typhimurium LT2 Cultures

Porwollik, Steffen, Wong, Rita Mei-Yee, Helm, R. Allen, Edwards, Kelly K., Calcutt, Michael, Eisenstark, Abraham, ...

Variations in genome size and gene order were observed in archival Salmonella enterica serovar Typhimurium cultures stored for over 40 years. In one strain, microarray analysis revealed a large,...

Pigeon-Associated Strains of Salmonella enterica Serovar Typhimurium Phage Type DT2 Have Genomic Rearrangements at rRNA Operons

Helm, R. Allen, Porwollik, Steffen, Stanley, April E., Maloy, Stanley, McClelland, Michael, Rabsch, Wolfgang, ...

Strains from a subgroup of Salmonella enterica serovar Typhimurium frequently associated with pigeon infections were tested for genomic anomalies and virulence in mice. Some strains have a genomic...

rpoS Mutants in Archival Cultures of Salmonella enterica Serovar Typhimurium

Sutton, Amy, Buencamino, Raphael, Eisenstark, Abraham

Long-term survival under limited growth conditions presents bacterial populations with unique environmental challenges. The existence of Salmonella enterica serovar Typhimurium cultures undisturbed...

The Tryptophanase Gene Cluster of Haemophilus influenzae Type b: Evidence for Horizontal Gene Transfer

Martin, Kimberly, Morlin, Gregory, Smith, Arnold, Nordyke, Andrea, Eisenstark, Abraham, Golomb, Miriam

Among strains of Haemophilus influenzae, the ability to catabolize tryptophan (as detected by indole production) varies and is correlated with pathogenicity. Tryptophan catabolism is widespread (70...

RpoS (Sigma-S) Controls Expression of rsmA, a Global Regulator of Secondary Metabolites, Harpin, and Extracellular Proteins in Erwinia carotovora†

Mukherjee, Asita, Cui, Yaya, Ma, Weilei, Liu, Yang, Ishihama, Akira, Eisenstark, Abraham, ...

RpoS (sigma-S or sigma-38) controls a large array of genes that are expressed during stationary phase and under various stress conditions in Escherichia coli and other bacteria. We document here that...

Evolution of the Major Pilus Gene Cluster of Haemophilus influenzae

Mhlanga-Mutangadura, Tendai, Morlin, Gregory, Smith, Arnold L., Eisenstark, Abraham, Golomb, Miriam

Haemophilus influenzae is a ubiquitous colonizer of the human respiratory tract and causes diseases ranging from otitis media to meningitis. Many H. influenzae isolates express pili (fimbriae), which...

Genomic Diversification among Archival Strains of Salmonella enterica Serovar Typhimurium LT7

Liu, Gui-Rong, Edwards, Kelly, Eisenstark, Abraham, Fu, Ying-Mei, Liu, Wei-Qiao, Sanderson, Kenneth E., ...

To document genomic changes during long periods of storage, we analyzed Salmonella enterica serovar Typhimurium LT7, a mutator strain that was previously reported to have higher rates of mutations...

Diversity of Phage Types among Archived Cultures of the Demerec Collection of Salmonella enterica serovar Typhimurium Strains†

Rabsch, Wolfgang, Helm, R. Allen, Eisenstark, Abraham

The existence of several thousand Salmonella enterica serovar Typhimurium LT2 and LT7 cultures originally collected by M. Demerec and sealed in agar stab vials for 33 to 46 years is a resource for...

DNA Amplification and Rearrangements in Archival Salmonella enterica Serovar Typhimurium LT2 Cultures

Porwollik, Steffen, Wong, Rita Mei-Yee, Helm, R. Allen, Edwards, Kelly K., Calcutt, Michael, Eisenstark, Abraham, ...

Variations in genome size and gene order were observed in archival Salmonella enterica serovar Typhimurium cultures stored for over 40 years. In one strain, microarray analysis revealed a large,...

Pigeon-Associated Strains of Salmonella enterica Serovar Typhimurium Phage Type DT2 Have Genomic Rearrangements at rRNA Operons

Helm, R. Allen, Porwollik, Steffen, Stanley, April E., Maloy, Stanley, McClelland, Michael, Rabsch, Wolfgang, ...

Strains from a subgroup of Salmonella enterica serovar Typhimurium frequently associated with pigeon infections were tested for genomic anomalies and virulence in mice. Some strains have a genomic...