Water-soluble lipopolysaccharide (phenol/water extraction) isolated from Acinetobacter strain 90, which belongs to DNA group 10, was hydrolysed with 1% acetic acid, ultracentrifuged, and water-soluble products finally eluted from a Sephadex G-50 column. The major fraction, a polysaccharide, contained D-Gal, D-GlcNAc, D-GalNAc, and 4,6-dideoxy-4-[(R)-3-hydroxybutyramido]-D-galactose (Fuc4NBuOH). The polysaccharide was characterised by means of monosaccharide analyses, Smith-degradation, N-deacetylation/deamination, and NMR studies, and was shown to have a branched pentasaccharide repeating unit. [structure in text] This structure was specifically recognised in western blots and enzyme immunoassays by polyclonal rabbit antisera.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1432-1033.1997.t01-1-00470.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Impact of pollution on microbiological dynamics in the pistil stigmas of Orobanche lutea flowers (Orobanchaceae).
Sci Rep
January 2025
Center for Research and Conservation of Biodiversity, Department of Environmental Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406, Kielce, Poland.
Our understanding of the basic relationships of microbiota associated with flowers is still quite limited, especially regarding parasitic plant species. The transient nature of flower parts such as pistil stigmas provides a unique opportunity for temporal investigations. This is the first report of the analysis of bacterial and fungal communities associated with the pistil stigmas of the lucerne parasite, Orobanche lutea.
View Article and Find Full Text PDFAntimicrobial Resistance Patterns of Clinically Isolated Strains of Acinetobacter baumannii in a Tertiary Care Hospital in Libya.
Cureus
December 2024
Department of Genetic Engineering, Libyan Biotechnology Research Center, Tripoli, LBY.
Objective: accounts for a notable percentage of hospital-acquired infections. The widespread resistance to multiple antibiotic classes complicates treatment efforts. This study aims to find out the pattern of susceptibility of multidrug-resistant (MDRAB) isolated from clinical specimens to antibiotics recommended for testing and use for and to determine a local guide at Tripoli University Hospital (TUH), Tripoli, Libya for the empirical antibiotic treatment of MDRAB based on the susceptibility pattern identified.
View Article and Find Full Text PDFProteomic Profiling and Pre-Clinical Efficacy of Antimicrobial Lithium Complex and Colistin Combination against Multi-drug Resistant Acinetobacter baumannii.
Microb Pathog
January 2025
Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan. Electronic address:
Multi-drug resistant (MDR) Acinetobacter baumannii accounts for high mortality rates in hospital-acquired infections. Colistin is the last resort treatment despite nephrotoxic effects and the emergence of colistin resistant A. baumannii.
View Article and Find Full Text PDFA Four-Year Study of Antibiotic Resistance, Prevalence and Biofilm-Forming Ability of Uropathogens Isolated from Community- and Hospital-Acquired Urinary Tract Infections in Southern Italy.
Pathogens
January 2025
Department of Human Pathology, University of Messina, 98125 Messina, Italy.
The aim of this study was to investigate the differences between nosocomial and community microorganisms isolated from patients with UTI by determining their bacterial profile, antibiotic resistance and ability to produce biofilms. A retrospective study, based on bacterial isolates from consecutive urine samples collected between January 2019 and December 2023, was conducted at a university hospital. The main pathogens isolated from both community and hospital samples were the same, but their frequency of isolation differed.
View Article and Find Full Text PDFA Novel Nitrite Reductase from for Efficient Degradation of Nitrite.
Biomolecules
January 2025
Xingzhi College, Zhejiang Normal University, Jinhua 321100, China.
Nitrite reductases play a crucial role in the nitrogen cycle, demonstrating significant potential for applications in the food industry and environmental remediation, particularly for nitrite degradation and detection. In this study, we identified a novel nitrite reductase (NiR) from a newly isolated denitrifying bacterium, YD01. We constructed a heterologous expression system using BL21/pET28a-Nir, which exhibited remarkable nitrite reductase enzyme activity of 29 U/mL in the culture broth, substantially higher than that reported for other strains.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!