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author = "Ron, Eliora"
<< < 1 2 3 4 > >>

Found 33 documents, displaying page 2 of 4

A Nonessential Signal Peptidase II (Lsp) of Myxococcus xanthus Might Be Involved in Biosynthesis of the Polyketide Antibiotic TA

Author(s) : Paitan, Yossi , Orr, Elisha , Ron, Eliora Z. , Rosenberg, Eugene
Description : Myxococcus xanthus is a gram-negative soil bacterium that produces the polyketide antibiotic TA. In this study, we describe the analysis of an M. xanthus gene which encodes a homologue of the prolipoprotein signal peptidase II (SPase II; lsp). Overexpression of the M. xanthus SPase II in Escherichia...
Repository : Europe PubMed Central
Language(s) : English

Differential and Independent Roles of a ς32 Homolog (RpoH) and an HrcA Repressor in the Heat Shock Response of Agrobacterium tumefaciens

Author(s) : Nakahigashi, Kenji , Ron, Eliora Z. , Yanagi, Hideki , Yura, Takashi
Description : The heat shock response in alpha proteobacteria is unique in that a combination of two regulators is involved: a positive regulator, RpoH (ς32 homolog), found in the alpha, beta, and gamma proteobacteria, and a negative regulator, HrcA, widely distributed in eubacteria but not in the gamma proteobac...
Repository : Europe PubMed Central
Language(s) : English

The Ubiquitous Conserved Glycopeptidase Gcp Prevents Accumulation of Toxic Glycated Proteins

Author(s) : Katz, Chen , Cohen-Or, Ifat , Gophna, Uri , Ron, Eliora Z.
Description : Amadori-modified proteins (AMPs) are the products of nonenzymatic glycation formed by reaction of reducing sugars with primary amine-containing amino acids and can develop into advanced glycated end products (AGEs), highly stable toxic compounds. AGEs are known to participate in many age-related hum...
Repository : Europe PubMed Central
Language(s) : English

The Heat Shock Protein YbeY Is Required for Optimal Activity of the 30S Ribosomal Subunit▿

Author(s) : Rasouly, Aviram , Davidovich, Chen , Ron, Eliora Z.
Description : The highly conserved bacterial ybeY gene is a heat shock gene whose function is not fully understood. Previously, we showed that the YbeY protein is involved in protein synthesis, as Escherichia coli mutants with ybeY deleted exhibit severe translational defects in vivo. Here we show that the in vit...
Repository : Europe PubMed Central
Language(s) : English

AGEs Secreted by Bacteria Are Involved in the Inflammatory Response

Author(s) : Cohen-Or, Ifat , Katz, Chen , Ron, Eliora Z.
Description : Advanced Glycated End Products (AGEs) are formed by non-enzymatic protein glycation and are implicated in several physiological aspects including cell aging and diseases. Recent data indicate that bacteria – although short lived – produce, metabolize and accumulate AGEs. Here we show that Escherichi...
Repository : Europe PubMed Central
Language(s) : English

Petroleum Pollution Bioremediation Using Water-Insoluble Uric Acid as the Nitrogen Source

Author(s) : Koren, Omry , Knezevic, Vishnia , Ron, Eliora Z. , Rosenberg, Eugene
Description : The biodegradation of hydrocarbon pollutants in open systems is limited by the availability of a utilizable nitrogen source. This limitation can be overcome by using uric acid. Enrichment cultures grown on crude oil-uric acid media yielded mixed and pure cultures that degraded petroleum. In a simula...
Repository : Europe PubMed Central
Language(s) : English

Thermoregulation of Escherichia coli hchA Transcript Stability▿

Author(s) : Rasouly, Aviram , Shenhar, Yotam , Ron, Eliora Z.
Description : The conserved chaperone Hsp31 of Escherichia coli is transcribed at low temperatures by σS and repressed by H-NS, whereas at high temperature, transcription is by σ70 independently of both σS and H-NS. Here we present evidence for an additional, novel, temperature-dependent control of Hsp31 expressi...
Repository : Europe PubMed Central
Language(s) : English

Potential Use of Toxic Thermolabile Proteins To Study Protein Quality Control Systems▿

Author(s) : Mizrahi, Itzhak , Dagan, Michael , Biran, Dvora , Ron, Eliora Z.
Description : SulA is an Escherichia coli division inhibitor with a short half-life whose accumulation results in filamentation. Here, we show that SulA is thermally unstable and forms aggregates at elevated temperatures. This property enables the selection of isolates with mutated protein quality control systems...
Repository : Europe PubMed Central
Language(s) : English

Production and Secretion of the Polysaccharide Biodispersan of Acinetobacter calcoaceticus A2 in Protein Secretion Mutants

Author(s) : Elkeles, Adi , Rosenberg, Eugene , Ron, Eliora Z.
Description : Biodispersan is an extracellular anionic polysaccharide produced by Acinetobacter calcoaceticus A2 that changes the surface properties of limestone and acts both as a dispersant and as a grinding aid (E. Rosenberg, C. Rubinovitz, A. Gottlieb, S. Rosenhak, and E. Z. Ron, Appl. Environ. Microbiol. 54:...
Repository : Europe PubMed Central
Language(s) : English

The Active Component of the Bioemulsifier Alasan from Acinetobacter radioresistens KA53 Is an OmpA-Like Protein

Author(s) : Toren, Amir , Orr, Elisha , Paitan, Yossi , Ron, Eliora Z. , Rosenberg, Eugene
Description : The bioemulsifier of Acinetobacter radioresistens KA53, referred to as alasan, is a high-molecular-weight complex of polysaccharide and protein. Recently, one of the alasan proteins, with an apparent molecular mass of 45 kDa, was purified and shown to constitute most of the emulsifying activity. The...
Repository : Europe PubMed Central
Language(s) : English
<< < 1 2 3 4 > >>

Found 33 documents, displaying page 2 of 4