
Rebecca L Renberg- Doctor of Philosophy
- Research Biolgist at Army Research Laboratory
Rebecca L Renberg
- Doctor of Philosophy
- Research Biolgist at Army Research Laboratory
About
21
Publications
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Introduction
Current institution
Additional affiliations
August 2014 - February 2015
Publications
Publications (21)
Engineering microorganisms to promote human or plant health will require manipulation of robust bacteria that are capable of surviving in harsh, competitive environments. Genetic engineering of undomesticated bacteria can be limited by an inability to transfer DNA into the cell. Here we developed an approach based on the integrative and conjugative...
Clostridium acetobutylicum can ferment a wide variety of carbohydrates to the commodity chemicals acetone, butanol, and ethanol. Recent advances in genetic engineering have expanded the chemical production repertoire of C. acetobutylicum using synthetic biology. Due to its natural properties and genetic engineering potential, this organism is a pro...
Clostridium acetobutylicum has traditionally been used for production of acetone, butanol, and ethanol (ABE). Butanol is a commodity chemical due in part to its suitability as a biofuel; however, the current yield of this product from biological systems is not economically feasible as an alternative fuel source. Understanding solvent phase physiolo...
Droplet microfluidic platforms have been broadly used to facilitate DNA transfer in mammalian and bacterial hosts via methods such as transformation, transfection, and conjugation, as introduced in our previous work. Herein, we recapitulate our method for conjugal DNA transfer between Bacillus subtilis strains in a droplet for increased conjugation...
The ongoing evolution of SARS-CoV-2 into more easily transmissible and infectious variants has provided unprecedented insight into mutations enabling immune escape. Understanding how these mutations affect the dynamics of antibody-antigen interactions is crucial to the development of broadly protective antibodies and vaccines. Here we report the ch...
Discovery of microorganisms and their relevant surface peptides that specifically bind to target materials of interest can be achieved through iterative biopanning-based screening of cellular libraries having high diversity. Recently, microfluidics-based biopanning methods have been developed and exploited to overcome the limitations of conventiona...
Background
Interactions between diet, stress and the gut microbiome are of interest as a means to modulate health and performance. Here, in vitro fermentation was used to explore the effects of a sudden change in diet, 21 days sole sustenance on the Meal, Ready-to-Eat (MRE) U.S. military combat ration, on inter-species competition and functional po...
Material Binding Microorganisms
In article 2100282, Arum Han and colleagues develop a novel centrifugal force-based microfluidic system for the discovery of material binding microorganisms and peptides. Under precise and accurate centrifugal control over shear force during binding and wash steps, microorganisms with peptides displayed on the cell s...
Discovery of unique peptides that specifically bind to target materials of interest is commonly achieved through biopanning‐based screening of cell libraries having high diversity. However, conventional methods have limitations in the generation of controllable shear stress applied in order to effectively remove weak and unbound cells from a target...
Background: Interactions between diet, stress and the gut microbiome are of interest as a means to modulate health and performance. Here, in vitro fermentation was used to explore the effects of a sudden change in diet, 21 days sole sustenance on the Meal, Ready-to-Eat (MRE) U.S. military combat ration, on inter-species competition and functional p...
The ongoing evolution of SARS-CoV-2 into more easily transmissible and infectious variants has sparked concern over the continued effectiveness of existing therapeutic antibodies and vaccines. Hence, together with increased genomic surveillance, methods to rapidly develop and assess effective interventions are critically needed. Here we report the...
Background:
Bacterial surface display libraries are a popular tool for novel ligand discovery due to their ease of manipulation and rapid growth rates. These libraries typically express a scaffold protein embedded within the outer membrane with a short, surface-exposed peptide that is either terminal or is incorporated into an outer loop, and can...
An individual orb weaving spider can spin up to seven different types of silk, each with unique functions and material properties. The capture spiral silk of classic two-dimensional aerial orb webs is coated with an amorphous glue that functions to retain prey that get caught in a web. This unique modified silk is partially comprised of spidroins (...
Clostridium acetobutylicum is a spore-forming, gram-positive, obligately anaerobic bacterium with a low GC content. • It can metabolize sugars and other substrates into biofuels such as ethanol and butanol (Fig. 1), but yields are low. • Approximately 1/3 of the genome is poorly annotated • Little is known about metabolic variation among strains. •...
The aggregate gland glycoprotein glue coating the prey-capture threads of orb weaving and cobweb weaving spider webs is comprised of silk protein spidroins (spider fibroins) encoded by two members of the silk gene family. It functions to retain prey that make contact with the web, but differs from solid silk fibers as it is a viscoelastic, amorphic...
Leishmania spp. are trypanosomatid parasites that replicate intracellularly in macrophages, causing serious human morbidity and mortality throughout the world. Trypanosomatid protozoa cannot synthesize heme, so must acquire this essential cofactor from their environment. Earlier studies identified LHR1 as a Leishmania amazonensis transmembrane prot...
Trypanosomatid protozoan parasites lack a functional heme biosynthetic pathway, so must acquire heme from the environment to survive. However, the molecular pathway responsible for heme acquisition by these organisms is unknown. Here we show that L. amazonensis LHR1, a homolog of the C. elegans plasma membrane heme transporter HRG-4, functions in h...
The helper-independent bovine parvovirus (BPV) was studied to determine its effect on host embryonic bovine tracheal (EBTr) cells: whether the ultimate outcome of infection results in apoptotic cell death or cell death by necrosis. Infected cells were observed for changes marking apoptosis. Observations of alterations in nuclear morphology, membran...