Výsledky vyhledávání - "Ana María Magdalena Demonte"

Monofluorophosphate Blocks Internal Polysaccharide Synthesis in Streptococcus mutans

Autor: Alberto A. Iglesias, Matías Damián Asención Diez, Miguel A. Ballicora, Conrad Naleway, Ana María Magdalena Demonte

Publikováno v: PLoS ONE, Vol 12, Iss 1, p e0170483 (2017)
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
PLoS ONE

Streptococcus mutans is the leading cause of dental caries worldwide by accumulating a glycogen-like internal polysaccharide (IPS) that contributes to cariogenicity when sugars are in excess. Sodium monofluorophosphate (MFP) is an active anticariogen

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The ADP-glucose pyrophosphorylase fromStreptococcus mutansprovides evidence for the regulation of polysaccharide biosynthesis in Firmicutes

Autor: Matías Damián Asención Diez, Ana María Magdalena Demonte, Miguel A. Ballicora, Alberto A. Iglesias, Sergio Adrian Guerrero

Publikováno v: Molecular Microbiology. 90:1011-1027

Streptococcus mutans is the leading cause of dental caries worldwide. The bacterium accumulates a glycogen-like internal polysaccharide, which mainly contributes to its carionegic capacity. S.mutans has two genes (glgC and glgD) respectively encoding

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::200d79eb2db49143b0ebca5caf079c70
https://doi.org/10.1111/mmi.12413

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Identification of Regions Critically Affecting Kinetics and Allosteric Regulation of the Escherichia coli ADP-Glucose Pyrophosphorylase by Modeling and Pentapeptide-Scanning Mutagenesis

Autor: Esteban Erben, Ana L. Bertolo, Corina M. Fusari, Carlos Maria Figueroa, Alberto A. Iglesias, Jennifer R. Schmidt, Jack Preiss, Terutaka Yazaki, Mabel Cristina Aleanzi, Clarisa M. Bejar, Miguel A. Ballicora, Ana María Magdalena Demonte

Publikováno v: Journal of Bacteriology. 189:5325-5333

ADP-glucose pyrophosphorylase (ADP-Glc PPase) is the enzyme responsible for the regulation of bacterial glycogen synthesis. To perform a structure-function relationship study of the Escherichia coli ADP-Glc PPase enzyme, we studied the effects of pen

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https://doi.org/10.1128/jb.00481-07

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Allosteric regulation of the partitioning of glucose-1-phosphate between glycogen and trehalose biosynthesis in Mycobacterium tuberculosis

Autor: Sergio Adrian Guerrero, Alberto A. Iglesias, Adrian Gustavo Gorelik, Diego Gustavo Arias, Ana María Magdalena Demonte, Stephen Bornemann, Karl Syson, Matías Damián Asención Diez

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Biochimica et Biophysica Acta

Background Mycobacterium tuberculosis is a pathogenic prokaryote adapted to survive in hostile environments. In this organism and other Gram-positive actinobacteria, the metabolic pathways of glycogen and trehalose are interconnected. Results In this

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https://www.sciencedirect.com/science/article/pii/S0304416514003250

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Iodine Staining of Escherichia coli Expressing Genes Involved in the Synthesis of Bacterial Glycogen

Autor: Sergio Adrian Guerrero, Ana María Magdalena Demonte, Alberto A. Iglesias, Miguel A. Ballicora, Matías Damián Asención Diez

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

The presence of intracellular glycogen can be detected by the following iodine staining technique. Cells with glycogen stain dark brown, whereas in its absence they remain with a pale yellowish color. It is hypothesized that iodine atoms fit into hel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92e326d3e24b215f7287bcb557c60fba
https://doi.org/10.21769/bioprotoc.1224

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Celiac Disease

Autor: Silvia Garcilazo, Marta Waggener, Mabel Cristina Aleanzi, Cecilia Esper, Ana María Magdalena Demonte

Publikováno v: Clinical Chemistry. 47:2023-2028

Background: Selective deamidation of glutamine residues by tissue transglutaminase (tTG) turns gliadin peptides into stronger activators of T cells from celiac disease (CD) patients. We examined the possibility that these modified peptides could be m

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https://doi.org/10.1093/clinchem/47.11.2023

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Characterization of recombinant UDP- and ADP-glucose pyrophosphorylases and glycogen synthase to elucidate glucose-1-phosphate partitioning into oligo- and polysaccharides in Streptomyces coelicolor

Autor: Ana María Magdalena Demonte, Matías Damián Asención Diez, Hugo Gramajo, Alberto A. Iglesias, Salvador Peirú

Publikováno v: Journal of bacteriology. 194(6)

Streptomyces coelicolor exhibits a major secondary metabolism, deriving important amounts of glucose to synthesize pigmented antibiotics. Understanding the pathways occurring in the bacterium with respect to synthesis of oligo- and polysaccharides is

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https://pubmed.ncbi.nlm.nih.gov/22210767

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Understanding the allosteric trigger for the fructose-1,6-bisphosphate regulation of the ADP-glucose pyrophosphorylase from Escherichia coli

Autor: Ana L. Bertolo, Ana María Magdalena Demonte, Carlos Maria Figueroa, Miguel A. Ballicora, Mabel Cristina Aleanzi, María Cecilia Esper, Alberto A. Iglesias

Publikováno v: Biochimie. 93(10)

ADP-glucose pyrophosphorylase is the enzyme responsible for the regulation of glycogen synthesis in bacteria. The enzyme N-terminal domain has a Rossmann-like fold with three neighbor loops facing the substrate ATP. In the Escherichia coli enzyme, on

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https://pubmed.ncbi.nlm.nih.gov/21741429

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Anticarsia gemmatalis nuclear polyhedrosis virus replication in serum-free and serum-reduced insect cell cultures

Autor: Juan Daniel Claus, Marcelo Cesar Murguia, Sergio Adrian Guerrero, Alberto J. Marcipar, Gabriel E. Remondetto, Ana María Magdalena Demonte

Publikováno v: Journal of Biotechnology. 31:1-15

In order to develop a financially feasible process to produce Anticarsia gemmatalis Nuclear Polyhedrosis virus in cell culture, we developed a lipidic supplement to replace fetal calf serum in insect cell culture media. The supplement, prepared with

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https://doi.org/10.1016/0168-1656(93)90133-8

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